An unidentified Fermi source emitting radio bursts in the Galactic bulge

Abstract

We report on the detection of radio bursts from the Galactic bulge using the real-time transient detection and localization system, realfast. The pulses were detected commensally on the Karl G. Jansky Very Large Array during a survey of unidentified Fermi $\gamma$-ray sources. The bursts were localized to subarcsecond precision using realfast fast-sampled imaging. Follow-up observations with the Green Bank Telescope detected additional bursts from the same source. The bursts do not exhibit periodicity in a search up to periods of 480 s, assuming a duty cycle of < 20%. The pulses are nearly 100% linearly polarized, showing circular polarization up to 12%, and exhibit variable scattering on timescales of months. The arcsecond-level realfast localization links the source confidently with the Fermi $\gamma$-ray source and places it nearby (though not coincident with) an XMM-Newton X-ray source. Based on the source's overall properties, we discuss various options for the nature of this object and propose that it could be a young pulsar, a magnetar, or a binary pulsar system.

References in corpus (52)

• The ATNF Pulsar Catalogue
• Intrinsic Colors, Temperatures, and Bolometric Corrections of Pre-Main Sequence Stars
• The SIMBAD astronomical database
• A bright millisecond radio burst of extragalactic origin
• The NANOGrav 15-year Data Set: Evidence for a Gravitational-Wave Background
• Fermi Large Area Telescope Fourth Source Catalog
• A Cosmology Calculator for the World Wide Web
• A New Electron Density Model for Estimation of Pulsar and FRB Distances
• PSRCHIVE and PSRFITS An Open Approach to Radio Pulsar Data Storage and Analysis
• The direct localization of a fast radio burst and its host
• A fast radio burst associated with a Galactic magnetar
• A bright millisecond-duration radio burst from a Galactic magnetar
• Faraday Rotation Measure Synthesis
• Transient radio bursts from rotating neutron stars
• A census of baryons in the Universe from localized fast radio bursts
• Incremental Fermi Large Area Telescope Fourth Source Catalog
• A repeating fast radio burst associated with a persistent radio source
• 1E 1547.0-5408: a radio-emitting magnetar with a rotation period of 2 seconds
• Emission Beam Geometry of Selected Pulsars Derived from Average Pulse Polarization Data
• The Westerbork SINGS Survey II. Polarization, Faraday Rotation, and Magnetic Fields
• Characterizing the FRB host galaxy population and its connection to transients in the local and extragalactic Universe
• Discovery of 35 New Supernova Remnants in the Inner Galaxy
• Discovery of High-Energy Gamma-Ray Emission from the Binary System PSR B1259-63/LS 2883 Around Periastron with Fermi
• The Third Fermi Large Area Telescope Catalog of Gamma-ray Pulsars
• A radio transient with unusually slow periodic emission
• FETCH: A deep-learning based classifier for fast transient classification
• The Millisecond Radio Sky: Transients from a Blind Single Pulse Search
• A Morphological Classification Model to Identify Unresolved PanSTARRS1 Sources: Application in the ZTF Real-Time Pipeline
• Polarized radio emission from a magnetar
• High-resolution single-pulse studies of the Vela Pulsar
• Radio emission evolution, polarimetry and multifrequency single pulse analysis of the radio magnetar PSR J1622-4950
• Profile morphology and polarization of young pulsars
• Optimal periodicity searching: Revisiting the Fast Folding Algorithm for large-scale pulsar surveys
• A Distant Fast Radio Burst Associated to its Host Galaxy with the Very Large Array
• Polarized radio emission from the magnetar XTE J1810-197
• Realfast: Real-Time, Commensal Fast Transient Surveys with the Very Large Array
• The Generalized Spectral Kurtosis Estimator
• Discovery of extended X-ray emission around the highly magnetic RRAT J1819-1458
• The Effect of Scattering on Pulsar Polarization Angle
• The Analytical Solution to the Temporal Broadening of a Gaussian-Shaped Radio Pulse by Multipath Scattering from a Thin Screen in the Interstellar Medium
• Detection of polarized quasi-periodic microstructure emission in millisecond pulsars
• VLA/Realfast Detection of a Burst from FRB180916.J0158+65 and Tests for Periodic Activity
• Pulsar Candidates Toward Fermi Unassociated Sources
• The Tail of PSR J0002+6216 and the Supernova Remnant CTB 1
• Searching For Pulsars Associated With the Fermi GeV Excess
• Polarization studies of Rotating Radio Transients
• HESS J1818-154, a new composite supernova remnant discovered in TeV gamma rays and X-rays
• Radio absorption in high-mass gamma-ray binaries
• Fermi-LAT Observation of PSR B1259-63 during Its 2021 Periastron Passage
• Exploring the single-pulse behaviours of PSR J0628+0909 with FAST
• The revised distance of supernova remnant G15.4+0.1
• Model on pulsed GeV radiation from magnetars

Cited by in corpus (1)

• Evidence for a hot galactic halo around the Andromeda Galaxy using fast radio bursts along two sightlines