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Sarin, NikhilStockholms universitet,Nordiska institutet för teoretisk fysik (Nordita),Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC),Nordita SU, Hannes Alfvens Vag 12, SE-10691 Stockholm, Sweden.;Stockholm Univ, Oskar Klein Ctr, Dept Phys, AlbaNova, SE-10691 Stockholm, Sweden.
(författare)
Missed opportunities : GRB 211211A and the case for continual gravitational-wave coverage with a single observatory
- Artikel/kapitelEngelska2023
Förlag, utgivningsår, omfång ...
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2022-11-24
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Oxford University Press (OUP),2023
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printrdacarrier
Nummerbeteckningar
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LIBRIS-ID:oai:DiVA.org:kth-325036
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https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-325036URI
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https://doi.org/10.1093/mnras/stac3441DOI
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https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-215780URI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:ref swepub-contenttype
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Ämneskategori:art swepub-publicationtype
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QC 20230424
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Gamma-ray burst GRB 211211A may have been the result of a neutron star merger at asymptotic to 350 Mpc. Ho we ver, none of the LIGO- Virgo detectors were operating at the time. We show that the gra vitational-wa ve signal from a GRB 211211A-like binary neutron star inspiral in the next LIGO-Virgo-KAGRA observing run (O4) would be below the conventional detection threshold, ho we ver a coincident gamma-ray burst observation would provide necessary information to claim a statistically significant multimessenger observation. We calculate that with O4 sensitivity, approximately 11 per cent of gamma-ray bursts within 600 Mpc will produce a confident association between the gra vitational-wa ve binary neutron star inspiral signature and the prompt gamma-ray signature. This corresponds to a coincident detection rate of 0 . 22(-0.22)(+8.3) yr(-1), where the uncertainties are the 90 per cent confidence intervals arising from uncertainties in the absolute merger rate, beaming and jet-launching fractions. These increase to approximately 34 per cent and 0.71(-0.70)(+26.8) yr(-1) with proposed O5 sensitivity. We show that the abo v e numbers do not depend significantly on the number of gra vitational-wa ve observatories operating with the specific sensitivity. That is, the number of confident joint gamma-ray burst and gravitational-wave detections is only marginally improved with two or three detectors operating compared to a single detector. It is therefore worth considering whether one detector with sufficient sensitivity (post O4) should remain in sky-watch mode at all times to elucidate the true nature of GRB 211211A-like events, a proposal we discuss in detail.
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Biuppslag (personer, institutioner, konferenser, titlar ...)
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Lasky, Paul D.Monash Univ, Sch Phys & Astron, Clayton, Vic 3800, Australia.;OzGrav ARC Ctr Excellence Gravitat Wave Discovery, Clayton, Vic 3800, Australia.
(författare)
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Nathan, Rowina S.Monash Univ, Sch Phys & Astron, Clayton, Vic 3800, Australia.;OzGrav ARC Ctr Excellence Gravitat Wave Discovery, Clayton, Vic 3800, Australia.
(författare)
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Stockholms universitetNordiska institutet för teoretisk fysik (Nordita)
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Monthly notices of the Royal Astronomical Society: Oxford University Press (OUP)518:4, s. 5483-54890035-87111365-2966
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