Limits on the hard X-ray emission from the periodic fast radio burst FRB 180916.J0158+65

Abstract

FRB 180916.J0158+65 is one of the nearest, periodically repeating, and actively bursting fast radio burst (FRB) which has been localized to the outskirts of a spiral galaxy. In this work we study the FRB with the hard X-ray $14-195$ keV data from the Burst Alert Telescope (BAT) on board The Neil Gehrels Swift Observatory. BAT uses coded mask technology giving a localization of $\lesssim 3$ arc-minute in the hard X-ray band, along with an accurate background estimation. BAT has been observing the source location in survey mode since February 2020. The survey mode observations involves background subtracted spectra, integrated over a time span ranging $300-2000$ seconds, at the source location (from Feb 2020-Jan 2022). We analyzed all the $\sim 230$ survey mode observations from BAT and checked for any signal in any of the observations. We did not detect any signal at $>5\sigma$ confidence level in any of the observations. We could estimate a $5\sigma$ upper limit on the $14-195$ keV flux, which ranged between $4.5\times 10^{-10}-7.6\times 10^{-9}\mathrm{erg}\mathrm{c}{\mathrm{m}}^{-2}{\mathrm{s}}^{-1}$. At the source distance this relates to a $5\sigma$ upper limit on luminosity of $5.08\times 10^{44}-8.5\times 10^{45}\mathrm{erg}{\mathrm{s}}^{-1}$. With this estimate, we could rule out any persistent X-ray emission, at the source location for these snapshots of BAT observations.

Accepted for publication in ApJ

References in corpus (21)

• The direct localization of a fast radio burst and its host
• A bright millisecond-duration radio burst from a Galactic magnetar
• The Host Galaxy and Redshift of the Repeating Fast Radio Burst FRB 121102
• The First CHIME/FRB Fast Radio Burst Catalog
• A repeating fast radio burst source localised to a nearby spiral galaxy
• CHIME/FRB Detection of Eight New Repeating Fast Radio Burst Sources
• INTEGRAL discovery of a burst with associated radio emission from the magnetar SGR 1935+2154
• The Physical Mechanisms of Fast Radio Bursts
• HXMT Identification of a non-thermal X-ray burst from SGR J1935+2154 and with FRB 200428
• Nine New Repeating Fast Radio Burst Sources from CHIME/FRB
• Implications of a "Fast Radio Burst" from a Galactic Magnetar
• The prevalence of repeating fast radio bursts
• Detection of two bright radio bursts from magnetar SGR 1935+2154
• The 60 pc Environment of FRB 20180916B
• The NICER View of the 2020 Burst Storm and Persistent Emission of SGR 1935+2154
• Identification of a Local Sample of Gamma-Ray Bursts Consistent with a Magnetar Giant Flare Origin
• Simultaneous X-ray and Radio Observations of the Repeating Fast Radio Burst FRB 180916.J0158+65
• Gamma-ray Urgent Archiver for Novel Opportunities (GUANO): Swift/BAT event data dumps on demand to enable sensitive sub-threshold GRB searches
• Gamma-Ray and X-Ray Observations of the Periodic-Repeater FRB 180916 During Active Phases
• AGILE Observations of Fast Radio Bursts
• Constraining the transient high-energy activity of FRB180916.J0158+65 with Insight-HXMT followup observations

Cited by in corpus (1)

• Evidence for an abundant old population of Galactic ultra long period magnetars and implications for fast radio bursts