Contemporaneous X-Ray Observations of 30 Bright Radio Bursts from the Prolific Fast Radio Burst Source FRB 20220912A

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dc.contributor.authorCook, Amanda M.
dc.contributor.authorScholz, Paul
dc.contributor.authorPearlman, Aaron B.
dc.contributor.authorAbbott, Thomas C.
dc.contributor.authorCruces, Marilyn
dc.contributor.authorGaensler, B. M.
dc.contributor.authorDong, Fengqiu Adam
dc.contributor.authorMichilli, Daniele
dc.contributor.authorEadie, Gwendolyn
dc.contributor.authorKaspi, Victoria M.
dc.contributor.authorStairs, Ingrid
dc.contributor.authorTan, Chia Min
dc.contributor.authorBhardwaj, Mohit
dc.contributor.authorCassanelli, Tomas
dc.contributor.authorCurtin, Alice P.
dc.contributor.authorIbik, Adaeze L.
dc.contributor.authorLazda, Mattias
dc.contributor.authorMasui, Kiyoshi W.
dc.contributor.authorPandhi, Ayush
dc.contributor.authorRafiei-Ravandi, Masoud
dc.contributor.authorSammons, Mawson W.
dc.contributor.authorShin, Kaitlyn
dc.contributor.authorSmith, Kendrick
dc.contributor.authorStenning, David C.
dc.date.accessioned2025-01-20T16:04:41Z
dc.date.available2025-01-20T16:04:41Z
dc.date.issued2024
dc.description.abstractWe present an extensive contemporaneous X-ray and radio campaign performed on the repeating fast radio burst (FRB) source FRB 20220912A for 8 weeks immediately following the source's detection by CHIME/FRB. This includes X-ray data from XMM-Newton, NICER, and Swift, and radio detections of FRB 20220912A from CHIME/Pulsar and Effelsberg. We detect no significant X-ray emission at the time of 30 radio bursts with upper limits on a 0.5-10.0 keV X-ray fluence of (1.5-14.5) x 10(-10) erg cm(-2) (99.7% credible interval, unabsorbed) on a timescale of 100 ms. Translated into a fluence ratio eta(x/r) = FX-ray/F-radio, this corresponds to eta(x/r) < 7 x 10(6). For persistent emission from the location of FRB 20220912A, we derive a 99.7% 0.5-10.0 keV isotropic flux limit of 8.8 x 10(-15) erg cm(-2) s(-1) (unabsorbed) or an isotropic luminosity limit of 1.4 x 10(41) erg s(-1) at a distance of 362.4 Mpc. We derive a hierarchical extension to the standard Bayesian treatment of low-count and background-contaminated X-ray data, which allows the robust combination of multiple observations. This methodology allows us to place the best (lowest) 99.7% credible interval upper limit on an FRB eta(x/r) to date, eta(x/r) < 2 x 10(6), assuming that all 30 detected radio bursts are associated with X-ray bursts with the same fluence ratio. If we instead adopt an X-ray spectrum similar to the X-ray burst observed contemporaneously with FRB-like emission from the Galactic magnetar SGR 1935+2154 detected on 2020 April 28, we derive a 99.7% credible interval upper limit on eta(x/r) of 8 x 10(5), which is only 3 times the observed value of eta(x/r) for SGR 1935+2154.
dc.fuente.origenWOS
dc.identifier.doi10.3847/1538-4357/ad6a13
dc.identifier.eissn1538-4357
dc.identifier.issn0004-637X
dc.identifier.urihttps://doi.org/10.3847/1538-4357/ad6a13
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/89844
dc.identifier.wosidWOS:001336994500001
dc.issue.numero2
dc.language.isoen
dc.revistaAstrophysical journal
dc.rightsacceso restringido
dc.titleContemporaneous X-Ray Observations of 30 Bright Radio Bursts from the Prolific Fast Radio Burst Source FRB 20220912A
dc.typeartículo
dc.volumen974
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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