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

Abstract

We present an extensive contemporaneous X-ray and radio campaign performed on the repeating fast radio burst (FRB) source FRB 20220912A for eight 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 $0.5-10.0$ keV X-ray fluence of $(1.5-14.5)\times 10^{-10}$ erg cm${}^{-2}$ (99.7% credible interval, unabsorbed) on a timescale of 100 ms. Translated into a fluence ratio ${\eta }_{\text{ x/r}}=F_{\text{X-ray}}/F_{\text{radio}}$, this corresponds to ${\eta }_{\text{ x/r}}<7\times 10^6$. For persistent emission from the location of FRB 20220912A, we derive a 99.7% $0.5-10.0$ keV isotropic flux limit of $8.8\times 10^{-15}$ erg cm${}^{-2}$ s${}^{-1}$ (unabsorbed) or an isotropic luminosity limit of 1.4$\times 10^{41}$ 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 ${\eta }_{\text{ x/r}}$ to date, ${\eta }_{\text{ x/r}}<2\times 10^6$, assuming that all thirty 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 Galactic magnetar SGR 1935+2154 detected on 2020 April 28, we derive a 99.7% credible interval upper limit on ${\eta }_{\text{ x/r}}$ of $8\times 10^5$, which is only 3 times the observed value of ${\eta }_{\text{ x/r}}$ for SGR 1935+2154.

23 pages, 3 figures. ApJ in press (accepted after resubmission July 19th, 2024)

References in corpus (53)

• The Astropy Project: Sustaining and Growing a Community-oriented Open-source Project and the Latest Major Release (v5.0) of the Core Package
• HI4PI: A full-sky HI survey based on EBHIS and GASS
• A New Electron Density Model for Estimation of Pulsar and FRB Distances
• A fast radio burst associated with a Galactic magnetar
• A bright millisecond-duration radio burst from a Galactic magnetar
• The Host Galaxy and Redshift of the Repeating Fast Radio Burst FRB 121102
• Incremental Fermi Large Area Telescope Fourth Source Catalog
• The First CHIME/FRB Fast Radio Burst Catalog
• Fast radio bursts as synchrotron maser emission from decelerating relativistic blast waves
• A repeating fast radio burst source localised to a nearby spiral galaxy
• INTEGRAL discovery of a burst with associated radio emission from the magnetar SGR 1935+2154
• 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
• A nearby repeating fast radio burst in the direction of M81
• Repeating behaviour of FRB 121102: periodicity, waiting times and energy distribution
• PINT: A Modern Software Package for Pulsar Timing
• CHIME/FRB Discovery of 25 Repeating Fast Radio Burst Sources
• FRB 121102 is coincident with a star forming region in its host galaxy
• Implications of a "Fast Radio Burst" from a Galactic Magnetar
• Repeating Fast Radio Bursts from Magnetars with Low Magnetospheric Twist
• A Swift gaze into the 2006 March 29th burst forest of SGR 1900+14
• Detection of two bright radio bursts from magnetar SGR 1935+2154
• A search for optical bursts from the repeating fast radio burst FRB 121102
• The NICER View of the 2020 Burst Storm and Persistent Emission of SGR 1935+2154
• Deep Synoptic Array science I: discovery of the host galaxy of FRB 20220912A
• The lowest frequency Fast Radio Bursts: Sardinia Radio Telescope detection of the periodic FRB 180916 at 328 MHz
• The CHIME Pulsar Project: System Overview
• A sudden period of high activity from repeating Fast Radio Burst 20201124A
• XRBcats: Galactic Low Mass X-ray Binary Catalogue
• A new, clean catalogue of extragalactic non-nuclear X-ray sources in nearby galaxies
• A radio pulsar phase from SGR J1935+2154 provides clues to the magnetar FRB mechanism
• An analysis pipeline for CHIME/FRB full-array baseband data
• An FRB Sent Me a DM: Constraining the Electron Column of the Milky Way Halo with Fast Radio Burst Dispersion Measures from CHIME/FRB
• Repeating fast radio bursts with WSRT/Apertif
• The Fast Radio Burst FRB 20201124A in a star forming region: constraints to the progenitor and multiwavelength counterparts
• Simultaneous X-ray and Radio Observations of the Repeating Fast Radio Burst FRB 180916.J0158+65
• Ultraluminous X-ray bursts in two ultracompact companions to nearby elliptical galaxies
• Modeling Fast Radio Burst Dispersion and Scattering Properties in the First CHIME/FRB Catalog
• Synchrotron masers and fast radio bursts
• The multiwavelength counterparts of fast radio bursts
• First discovery of new pulsars and RRATs with CHIME/FRB
• On the possible observational manifestation of supernova shock impact on the neutron star magnetosphere
• AGILE Observations of Two Repeating Fast Radio Bursts with Small Intrinsic Dispersion Measures
• The fast transient sky with Gaia
• Fast radio bursts by high-frequency synchrotron maser emission generated at the reverse shock of a powerful magnetar flare
• Direct Emission of Strong Radio Pulses During Magnetar Flares
• Limits on Simultaneous and Delayed Optical Emission from Well-localized Fast Radio Bursts
• An X-ray Census of Fast Radio Burst Host Galaxies: Constraints on AGN and X-ray Counterparts
• Simultaneous and panchromatic observations of the Fast Radio Burst FRB 20180916B
• An optical search for transients lasting a few seconds
• Detection of a bright burst from the repeating FRB 20201124A at 2 GHz
• Non-detection of CHIME/FRB sources with the Arecibo Observatory
• Repeating Ultraluminous X-ray Bursts and Repeating Fast Radio Bursts: A Possible Association?

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