standOff, and the article is at its publisher via the link below. When we have changed our mind. Some entries in the table begin with a word in capitals and the reason for it. EVIDENCE CORRECTED — the finding still stands, but we had quoted the wrong sentence from the paper, and the quotation has been replaced with the right one. RETRACTED — the entry itself was wrong; it stays on the page, marked, with the reason, rather than being deleted. WITHDRAWN AND REPLACED — the entry was wrong, and a corrected version of it appears in the entries below. Each mark carries its own reason, in brackets, because the reasons differ from one entry to the next. An entry we have WITHDRAWN is removed from this page and kept in the record, with its reason. A line reading Audit and a date is a later re-reading of the entry against its whole sentence: DOUBTFUL means it was kept, and the reason says what is loose about it. Quotation marks inside the tagger's sentence. Where a tag is the tagger's own sentence, a phrase in quotation marks inside it is borrowed from the paper — the tagger's wording around it is not. The paper's own sentence is the evidence quote for that row; on this page it is withheld with the article, and the article is at its publisher. Nothing inside quotation marks anywhere on this page is ours: if it is quoted, it is the paper's. Whose words a concept carries. A concept entry records a term the paper itself uses, so the term, the sense given for it, and its evidence are the paper's own words, quoted where the paper fixes them. This is the opposite of a sense entry in the tag table, which is the tagger's sentence about how the paper uses a term. Where a concept entry could not be grounded in the paper's words, the entry says so on its own row.| second reading | alternatives | an independent re-reading of a facet, recorded whether or not it agrees |
| relation to other work | claim_relations | how this paper stands to another: agrees, contradicts, extends, qualifies |
| claim type | claim_type | the shape of the claim: existence, mechanism, method, critique, prediction, null |
| concept edge | concept_edges | an asserted relation between two concepts, with the sentence asserting it |
| concept | concepts | an idea the paper works with, quoted where the paper uses it |
| content tag | content_tags | a finding, definition, quantity, statistic or variable named in the paper |
| contribution | contribution | what the paper claims to add |
| control | controls | an experiment run to eliminate a rival explanation |
| limitation | limitations | what the paper says its evidence cannot support |
| mechanism | mechanisms | how the reported effect is said to come about |
| method | method | how the paper produced its evidence |
| object of study | object_of_study | what the paper is about — the thing it investigates |
| phenomenon | phenomenon | the effect or regularity under study |
| research question | research_question | the question the paper sets itself |
| sense | senses | a distinct use of a term, quoted where the paper fixes it |
Relations on this page carry a quotation for the claim. Where a relation was separately evidenced — and so tested against the vocabulary for its type — the row says so; none of 6 relations here carry that mark. The rest are the tagger’s reading of the sentence quoted beside them.
| facet | tag | field | conf. | whose words |
|---|---|---|---|---|
| object_of_study | every candidate compact-binary merger signal in the LIGO-Virgo data from the first two observing runs - the 11 the collaboration is confident about and the 14 it is not Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. | object_of_study | the paper's words | |
| research_question | which candidates in O1 and O2 are of astrophysical rather than terrestrial origin, at what significance, and what merger rates follow from the answer Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. | research_question | the paper's words | |
| contribution | the first LIGO-Virgo transient catalog: four previously unpublished binary black hole mergers, updated significances and parameters for every earlier detection, and an explicit list of the marginal candidates that were not resolved Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. | contribution | the paper's words | |
| claim_type | existence Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. | claim_type | the paper's words | |
| phenomenon | gravitational waves from the inspiral, merger and ringdown of compact binary coalescences, detected by a network of ground-based interferometers Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. | phenomenon | the paper's words | |
| method | observational-study Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. also in: observational-study | method | the paper's words | |
| mechanisms | light scattered inside the interferometer puts excess power at low frequencies, appearing as arch shapes in a spectrogram; where those frequencies reach the analysis band it can produce a significant matched-filter trigger Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. also in: scattered light | mechanisms[0] | 0.95 | the tagger's words |
| mechanisms | storms and earthquakes drive high-amplitude ground motion which both destabilises the interferometer and generates the scattering artifacts, so the environmental cause and the data artifact arrive together Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. also in: ground motion | mechanisms[1] | 0.9 | the tagger's words |
| mechanisms | why noise triggers pile up at low chirp mass - the template bank is much more densely packed there, so noise has more chances to match something Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. also in: template density | mechanisms[2] | 0.95 | the tagger's words |
| mechanisms | sky position is reconstructed from the difference in arrival time across separated detector sites, which is why adding Virgo to the two LIGO sites improves localisation so sharply Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. also in: arrival-time difference | mechanisms[3] | 0.95 | the tagger's words |
| mechanisms | a noise trigger is a function of the pipeline that found it, so the same noise is not expected to appear in both searches - which is why agreement between pipelines carries information and disagreement does not immediately count against a candidate Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. also in: pipeline-specific noise | mechanisms[4] | 0.95 | the tagger's words |
| limitations | the 14 marginal triggers cannot be resolved individually - some may be real and the analysis cannot say which Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. | limitations[0] | 0.95 | the tagger's words |
| limitations | restated in the conclusions rather than left in the results: the COUNT of marginal events is as expected, and no particular one can be called signal or noise Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. | limitations[1] | 0.95 | the tagger's words |
| limitations | where a candidate outranks the whole time-shifted background, the false-alarm rate is only a bound, and shortening the time-shift periods made that bound larger than the one previously published for the same events Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. | limitations[2] | 0.95 | the tagger's words |
| limitations | the source properties rest on relativistic waveform models which the authors say do not necessarily incorporate all physical effects Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. | limitations[3] | 0.95 | the tagger's words |
| limitations | the matched-filter searches assume quasicircular binaries with spins aligned or antialigned to the orbital angular momentum - a restriction on the template bank, though the authors note precessing systems are still often recovered Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. | limitations[4] | 0.95 | the tagger's words |
| limitations | individual black hole spins are only weakly constrained Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. | limitations[5] | 0.95 | the tagger's words |
| controls | significance measured against a background built by repeatedly time-shifting one detector's triggers against the other's and counting the coincidences that result Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. eliminates: a chance alignment of independent noise in two detectors being read as a signal - the candidate is ranked against a background of coincidences manufactured from the same data · outcome: held | controls[0] | 0.85 | the tagger's words |
| controls | the time shifts are chosen much larger than the light-travel delay between sites Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. eliminates: a real astrophysical signal leaking into the background sample and inflating the false-alarm rate it is being measured against · outcome: held | controls[1] | 0.95 | the tagger's words |
| controls | GstLAL's noise model built from single-detector triggers that were NOT found in coincidence Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. eliminates: real signals contaminating the model of what noise looks like - the same concern as the time shifts, met by a different construction · outcome: held | controls[2] | 0.95 | the tagger's words |
| controls | a veto on the network correlation coefficient, rejecting candidates below 0.7 Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. eliminates: instrumental glitches - the statistic sits near 1 for a real signal and far below it for a glitch, so a floor at 0.7 removes the second without a model of either · outcome: held | controls[3] | 0.85 | the tagger's words |
| controls | a minimum waveform duration of 0.15 s, which sets the high-mass edge of the search Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. eliminates: short instrumental glitches ranking highly against the very short templates a higher mass limit would require · outcome: held | controls[4] | 0.95 | the tagger's words |
| controls | two signal-based vetoes applied to PyCBC single-detector triggers Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. eliminates: high-amplitude noise transients producing triggers that look like signals to the matched filter · outcome: held | controls[5] | 0.95 | the tagger's words |
| controls | time shifts restricted to within a single analysis period rather than across the whole run Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. eliminates: a background averaged over detector states that differ - the noise changes substantially between the start of O1 and the end of O2. IT DOES NOT COME FREE and the authors say so: the reachable lower bound on the false-alarm rate gets larger · outcome: partial | controls[6] | 0.95 | the tagger's words |
| controls | a detector-characterisation investigation of every marginal trigger, using auxiliary sensors alongside the strain data, against two stated metrics Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. eliminates: a known instrumental or environmental artifact being the whole explanation of a marginal trigger. PARTIAL BY THE PAPER'S OWN COUNT: nine of the fourteen coincide with known noise and four of those could account for the trigger · outcome: partial | controls[7] | 0.95 | the tagger's words |
| controls | glitch subtraction followed by reanalysis of the cleaned data - the counterfactual rather than the correlation Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. eliminates: scattered light as the cause of the two triggers examined this way - with the artifact subtracted the trigger survives at similar significance, so the artifact was not producing it · outcome: held | controls[8] | 0.95 | the tagger's words |
| controls | a Poisson calculation on the clustering of five events into August 2017 Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. eliminates: a run of detections in one month being read as an excess over the expected rate - the probability of it happening in at least one of the ten comparable periods is 5.3% · outcome: held | controls[9] | 0.95 | the tagger's words |
| controls | an independent waveform reconstruction using wavelets and the unmodelled search, compared against the template-based reconstruction, both visually and by subtracting the best-fit waveform and reanalysing Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. eliminates: the inferred signal being an artefact of the relativistic waveform models - which the authors introduce precisely by saying those models may not include all physics · outcome: held | controls[10] | 0.95 | the tagger's words |
| controls | checking that features appearing in the wavelet reconstruction's 90% band are absent from its 50% band, and reproducing them with simulated signals injected into real data Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. eliminates: apparent extra structure in the reconstruction being read as disagreement with the template model - it is coherent noise, and it appears the same way for signals that are known to be real because they were injected · outcome: held | controls[11] | 0.95 | the tagger's words |
| controls | the pipeline's response calibrated by recovering injected synthetic signals Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. eliminates: the astrophysical probabilities resting on an assumed rather than a measured detection efficiency · outcome: held | controls[12] | 0.9 | the tagger's words |
| controls | the unmodelled search's results excluded from the event-selection step Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. eliminates: the event list depending on three different ranking statistics with three different noise models - selection rests on the two matched-filter searches only · outcome: held | controls[13] | 0.9 | the tagger's words |
| concepts | PyCBC Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. also in: PyCBC | concepts[0] | 0.95 | the paper's words |
| concepts | GstLAL Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. also in: GstLAL | concepts[1] | 0.95 | the paper's words |
| concepts | cWB Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. also in: cWB | concepts[2] | 0.95 | the paper's words |
| concepts | matched-filter searches Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. also in: matched-filter searches | concepts[3] | 0.95 | the paper's words |
| concepts | unmodeled search Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. also in: unmodeled search | concepts[4] | 0.95 | the paper's words |
| concepts | false-alarm rate Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. also in: false-alarm rate | concepts[5] | 0.95 | the paper's words |
| concepts | marginal events Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. also in: marginal events | concepts[6] | 0.95 | the paper's words |
| concepts | background triggers Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. also in: background triggers | concepts[7] | 0.95 | the paper's words |
| concepts | time-shifted data Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. also in: time-shifted data | concepts[8] | 0.95 | the paper's words |
| concepts | glitches Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. also in: glitches | concepts[9] | 0.95 | the paper's words |
| concepts | scattered light Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. also in: scattered light | concepts[10] | 0.95 | the paper's words |
| concepts | compact binary coalescences Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. also in: compact binary coalescences | concepts[11] | 0.95 | the paper's words |
| concepts | GWs Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. also in: GWs | concepts[12] | 0.95 | the paper's words |
| concepts | BBH mergers Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. also in: BBH mergers | concepts[13] | 0.95 | the paper's words |
| concepts | NSBH Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. also in: NSBH | concepts[14] | 0.95 | the paper's words |
| concepts | sky localization Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. also in: sky localization | concepts[15] | 0.95 | the paper's words |
| concepts | template Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. also in: template | concepts[16] | 0.9 | the paper's words |
| concepts | signal-based vetoes Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. also in: signal-based vetoes | concepts[17] | 0.95 | the paper's words |
| concepts | triggers Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. also in: triggers | concepts[18] | 0.95 | the paper's words |
| concepts | software injections Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. also in: software injections | concepts[19] | 0.95 | the paper's words |
| concepts | waveform model Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. also in: waveform model | concepts[20] | 0.95 | the paper's words |
| senses | weakly modeled - THE PAPER COINS THIS ABOUT ITSELF AND SAYS WHY. cWB is introduced as an unmodeled search, but the analysis reported here restricts it to signals that chirp in the time-frequency plane, so it is no longer model-free. The authors change the word rather than keep the stronger one Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. | senses[0] | 0.95 | the tagger's words |
| senses | marginal - NEITHER ESTABLISHED NOR EXCLUDED, and the paper holds that line to the end. A marginal trigger passed the false-alarm threshold but was given less than a 50% probability of astrophysical origin by both matched-filter searches. It is not a non-detection and not a weak detection: it is a candidate the collaboration declines to resolve, and it says so in the conclusions as well as the results Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. | senses[1] | 0.95 | the tagger's words |
| senses | false-alarm rate - AN EMPIRICAL RATE MEASURED AGAINST TIME-SHIFTED DATA, NOT A PROBABILITY THAT THE EVENT IS NOISE. Where a candidate outranks every background trigger the search can only report a BOUND, and the bound depends on how much background time was available - which is why some FARs here are larger than the ones previously published for the same events Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. | senses[2] | 0.95 | the tagger's words |
| senses | independent, of the three searches - INDEPENDENCE OF METHOD, NOT OF EVIDENCE. The conclusions say `three independent analyses` flatly; what is independent is the pipeline, the ranking statistic and the noise model, while the strain data are the same in all three. The body is more careful than the conclusion, which is worth knowing before the agreement between them is read as three confirmations Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. | senses[3] | 0.9 | the tagger's words |
| senses | GW versus marginal - A THRESHOLD CONVENTION, NOT A PROPERTY OF THE UNIVERSE. The boundary is a false-alarm rate ceiling of 1 per 30 days followed by a 50% astrophysical probability, both chosen by the collaboration. An event just under the line and one just over it differ by the convention, and the paper presents the choice as a choice Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. | senses[4] | 0.95 | the tagger's words |
| senses | detection, in the phrase `no new gravitational-wave events were discovered` - THE O1 REANALYSIS FOUND NOTHING NEW BUT DID CHANGE AN OLD ANSWER. The same data through better pipelines moved LVT151012 across the threshold and it is now GW151012. So the null result is about new events only; the catalog's contents still changed Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. | senses[5] | 0.95 | the tagger's words |
| alternatives | claim_type: existence Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. a second reading reaching the same value. Recorded: existence — note: A BLIND second reading by the project on 2026-08-25: the record's own claim type/method/phenomenon were not looked at until every value here was written and substring-verified. Not applied - a person decides. Sampling frame: the 504 staged records carrying no alternatives block, so this never re-measures the 202. All 11 records with 130+ tags were taken as a census and 19 more spread one per discipline across 22 disciplines - the dense non-neuroscience cell is the one the 202 do not contain (inside them, 94-100% of the densest bands are neuroscience; among these 11, one is)., | alternatives.claim_type | 0.9 | the tagger's words |
| alternatives | method: observational-survey Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. a second reading DIFFERING from the recorded value. Recorded: observational-study — note: A BLIND second reading by the project on 2026-08-25: the record's own claim type/method/phenomenon were not looked at until every value here was written and substring-verified. Not applied - a person decides. Sampling frame: the 504 staged records carrying no alternatives block, so this never re-measures the 202. All 11 records with 130+ tags were taken as a census and 19 more spread one per discipline across 22 disciplines - the dense non-neuroscience cell is the one the 202 do not contain (inside them, 94-100% of the densest bands are neuroscience; among these 11, one is)., | alternatives.method | 0.75 | the tagger's words |
| alternatives | phenomenon: gravitational waves from compact binary mergers (binary black hole and binary neutron star coalescence) observed by LIGO and Virgo Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. a second reading DIFFERING from the recorded value. Recorded: gravitational waves from the inspiral, merger and ringdown of compact binary coalescences, detected by a network of grou — note: A BLIND second reading by the project on 2026-08-25: the record's own claim type/method/phenomenon were not looked at until every value here was written and substring-verified. Not applied - a person decides. Sampling frame: the 504 staged records carrying no alternatives block, so this never re-measures the 202. All 11 records with 130+ tags were taken as a census and 19 more spread one per discipline across 22 disciplines - the dense non-neuroscience cell is the one the 202 do not contain (inside them, 94-100% of the densest bands are neuroscience; among these 11, one is)., | alternatives.phenomenon | 0.9 | the tagger's words |
| claim_relations | extends → the individual LIGO-Virgo detection papers for GW150914, GW151226, GW170104, GW170608, GW170814 and GW170817, whose significances and parameter estimates this catalog replaces Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. | claim_relations[0] | 0.95 | the tagger's words |
| claim_relations | confirms → an independent catalog by another group which reanalysed the O1 data with the PyCBC pipeline and found the same three events, with identical FAR bounds for two of them Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. | claim_relations[1] | 0.95 | the tagger's words |
| claim_relations | qualifies → the collaboration's own earlier designation of LVT151012 as a trigger rather than an event, which the improved pipelines overturn Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. | claim_relations[2] | 0.95 | the tagger's words |
| concept_edges | matched-filter searches —contrasted-with→ unmodeled search Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. strength of the relation: 0.95
Audit 2026-09-28: DOUBTFUL - read against its full span and kept, but the span lists matched-filter and unmodeled searches side by side; contrasted-with is loose. also in: matched-filter searches · unmodeled search | concept_edges[1] | the tagger's words | |
| concept_edges | cWB —is-a→ unmodeled search Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. strength of the relation: 0.85 · note: and the paper immediately withdraws the word for itself - see the 'weakly modeled' sense. The edge records what cWB is called at first mention, not what it is also in: cWB · unmodeled search | concept_edges[2] | the tagger's words | |
| concept_edges | false-alarm rate —operationalised-as→ background triggers Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. strength of the relation: 0.95 · note: the FAR is the rate of background triggers ranking at least as high as the candidate; the background is manufactured by time shifting, so the measure exists only relative to how much shifted time was analysed also in: false-alarm rate · background triggers | concept_edges[3] | the tagger's words | |
| concept_edges | background triggers —operationalised-as→ time-shifted data Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. strength of the relation: 1 also in: background triggers · time-shifted data | concept_edges[4] | the tagger's words | |
| concept_edges | scattered light —causes→ triggers Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. direction on the measure: increases · strength of the relation: 0.9
Audit 2026-09-28: DOUBTFUL - read against its span and kept, but scattered light produces excess power seen as arches; 'triggers' is not stated. also in: scattered light · triggers | concept_edges[5] | the tagger's words | |
| concept_edges | signal-based vetoes —causes→ triggers Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. direction on the measure: reduces · strength of the relation: 0.9 · note: the vetoes act on the TRIGGERS, not on the glitches - the noise transients are still in the instrument afterwards. Pointed here in the audit, where the edge had read 'vetoes reduce glitches', which the paper does not say and which is not true also in: signal-based vetoes · triggers | concept_edges[7] | the tagger's words | |
| content_tags | 11 confident detections of gravitational waves from compact binary mergers are reported. Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. | content_tags.findings[0] | 0.95 | the tagger's words |
| content_tags | four binary black hole mergers announced here for the first time: GW170729, GW170809, GW170818, GW170823 Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. | content_tags.findings[1] | 0.95 | the tagger's words |
| content_tags | No neutron star-black hole merger was detected. Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. | content_tags.findings[2] | 0.95 | the tagger's words |
| content_tags | NULL RESULT: reanalysing O1 with the improved pipelines discovered no new events at all - but it did raise GW151012's significance enough to relabel it Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. | content_tags.findings[3] | 0.95 | the tagger's words |
| content_tags | NULL RESULT: no binary component has been observed in either putative mass gap - the one between neutron stars and black holes, or the pair-instability gap Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. | content_tags.findings[4] | 0.95 | the tagger's words |
| content_tags | 14 candidates with FAR under 1 per 30 days are listed whose astrophysical origin can be neither established nor excluded. Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. | content_tags.findings[5] | 0.95 | the tagger's words |
| content_tags | the two reconstruction methods, one using waveform models and one not, show no detectable discrepancies Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. | content_tags.findings[6] | 0.95 | the tagger's words |
| content_tags | a published false-alarm bound got WORSE: PyCBC's bound for GW150914 and GW151226 is higher here than in the original papers, because shorter time-shift periods were used Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. | content_tags.findings[7] | 0.95 | the tagger's words |
| content_tags | GW designation = probability of astrophysical origin above 50% in either matched-filter search, among events already under the false-alarm ceiling Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. also in: “GW” designation | content_tags.definitions[0] | 0.95 | the tagger's words |
| content_tags | marginal event = passed the false-alarm ceiling, but neither matched-filter search gives it more than 50% astrophysical probability Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. also in: marginal events | content_tags.definitions[1] | 0.95 | the tagger's words |
| content_tags | the background against which significance is measured is manufactured, by shifting one detector's triggers in time and counting the coincidences that survive Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. also in: background estimation | content_tags.definitions[3] | 0.95 | the tagger's words |
| content_tags | the matched-filter searches analysed 0.46 years of coincident data, in which about six triggers were expected from noise alone at the chosen threshold Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. | content_tags.quantities[0] | 0.95 | the tagger's words |
| content_tags | PyCBC found three marginal triggers and GstLAL eleven, against about six expected Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. | content_tags.quantities[1] | 0.9 | the tagger's words |
| content_tags | the false-alarm threshold for inclusion: 1 per 30 days, about 12.2 per year, in at least one matched-filter search Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. | content_tags.quantities[2] | 0.95 | the tagger's words |
| content_tags | the detector network is sensitive from about 15 Hz to a few kilohertz; the unmodelled search covers up to 1 kHz and durations of a few seconds Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. value source note: THE DESCRIPTION DRAWS ON THE PAPER BEYOND THIS QUOTE: the 15 Hz and the few kilohertz are the detector network's range, stated in the introduction ('covering a frequency range from about 15 Hz…'). | content_tags.quantities[3] | 0.95 | the tagger's words |
| content_tags | the probability that a Poisson process would put five or more events into at least one of the ten comparable periods is 5.3%, so the August 2017 cluster is consistent with chance Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. | content_tags.statistics[0] | 0.95 | the tagger's words |
| content_tags | the threshold is calibrated rather than assumed: at 1 per 30 days about two noise events per month are expected and about two signal events per month were observed, so a sample above that threshold is at least half noise Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. | content_tags.statistics[1] | 0.95 | the tagger's words |
| content_tags | eleven marginal triggers where six were expected is unlikely but NOT unlikely enough to assert that any of them are astrophysical Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. | content_tags.statistics[2] | 0.95 | the tagger's words |
| content_tags | candidates with a network correlation coefficient below 0.7 are rejected: a real signal sits near 1, a glitch far below it Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above. | content_tags.statistics[3] | 0.95 | the tagger's words |
Tags that could not be placed in the text:
What was deliberately not tagged, and why, is recorded per paper by the tagger. Where a paper has no such record, this page says so rather than implying that nothing was declined.