Please use this identifier to cite or link to this item: http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/5920
Full metadata record
DC FieldValueLanguage
dc.contributor.authorKULKARNI, SUMANen_US
dc.contributor.authorCapano, Collin D.en_US
dc.date.accessioned2021-06-04T11:10:42Z
dc.date.available2021-06-04T11:10:42Z
dc.date.issued2021-05en_US
dc.identifier.citationPhysical Review D, 103(10), 104002.en_US
dc.identifier.issn2470-0029en_US
dc.identifier.issn2470-0010en_US
dc.identifier.urihttp://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/5920
dc.identifier.urihttps://doi.org/10.1103/PhysRevD.103.104002en_US
dc.description.abstractAccurate parameter estimation is key to maximizing the scientific impact of gravitational-wave astronomy. Parameters of a binary merger are typically estimated using Bayesian inference. It is necessary to make several assumptions when doing so, one of which is that the detectors output stationary Gaussian noise. We test the validity of these assumptions by performing percentile-percentile tests in both simulated Gaussian noise and real detector data in the first observing run of Advanced LIGO (O1). We add simulated signals to 512s of data centered on each of the three events detected in O1—GW150914, GW151012, and GW151226—and check that the recovered credible intervals match statistical expectations. We find that we are able to recover unbiased parameter estimates in the real detector data, indicating that the assumption of Gaussian noise does not adversely effect parameter estimates. However, we also find that both the parallel-tempered sampler emcee_pt and the nested sampler dynesty struggle to produced unbiased parameter estimates for GW151226-like signals, even in simulated Gaussian noise. The emcee_pt sampler does produce unbiased estimates for GW150914-like signals. This highlights the importance of performing percentile-percentile tests in different targeted areas of parameter space.en_US
dc.language.isoenen_US
dc.publisherAmerican Physical Societyen_US
dc.subjectPhysicsen_US
dc.subject2021-JUN-WEEK1en_US
dc.subjectTOC-JUN-2021en_US
dc.subject2021en_US
dc.titleReliability of parameter estimates in the first observing run of Advanced LIGOen_US
dc.typeArticleen_US
dc.contributor.departmentDept. of Physicsen_US
dc.identifier.sourcetitlePhysical Review Den_US
dc.publication.originofpublisherForeignen_US
Appears in Collections:JOURNAL ARTICLES

Files in This Item:
There are no files associated with this item.


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.