MeerKAT radio detection of the Galactic black hole candidate Swift J1842.5-1124 during its 2020 outburst

Abstract

Swift J1842.5$-$1124 is a transient Galactic black hole X-ray binary candidate, which underwent a new outburst in May 2020. We performed multi-epoch MeerKAT radio observations under the ThunderKAT Large Survey Programme, coordinated with quasi-simultaneous Swift/XRT X-ray observations during the outburst, which lasted nearly a month. We were able to make the first-ever radio detection of this black hole binary with the highest flux density of 229$\pm$31 $\mu$Jy when the source was in the hard state, after non-detection in the radio band in the soft state which occurred immediately after its emergence during the new X-ray outburst. Therefore, its radio and X-ray properties are consistent with the disk-jet coupling picture established in other black hole X-ray binaries. We place the source's quasi-simultaneous X-ray and radio measurements on the radio/X-ray luminosity correlation plane; two quasi-simultaneous radio/X-ray measurements separated by 11 days were obtained, which span $\sim$ 2 dex in the X-ray luminosity. If the source follows the black hole track in the radio/X-ray correlation plane during the outburst, it would lie at a distance beyond $\sim$ 5 kpc.

arXiv comment5 pages, 3 figures, accepted for publication in Monthly Notices of the Royal Astronomical Society

References in corpus (43)

• X-ray Properties of Black-Hole Binaries
• Methods and results of an automatic analysis of a complete sample of Swift-XRT observations of GRBs
• HI4PI: A full-sky HI survey based on EBHIS and GASS
• Towards a unified model for black hole X-ray binary jets
• WSClean: an implementation of a fast, generic wide-field imager for radio astronomy
• An online repository of Swift/XRT light curves of GRBs
• The MAXI Mission on the ISS: Science and Instruments for Monitoring All Sky X-Ray Images
• A universal radio/X-ray correlation in low/hard state black hole binaries
• The Swift/BAT Hard X-ray Transient Monitor
• Correlated X-ray Spectral and Timing Behavior of the Black Hole Candidate XTE J1550-564: A New Interpretation of Black Hole States
• The Properties of X-Ray and Optical Light Curves of X-Ray Novae
• Powerful jets from black hole X-ray binaries in Low/Hard X-ray states
• MERLIN observations of relativistic ejections from GRS 1915+105
• Radio / X-ray correlation in the low/hard state of GX 339--4
• A relativistic jet from Cygnus X-1 in the low/hard X-ray state
• Jets in neutron star X-ray binaries: a comparison with black holes
• States and transitions in black-hole binaries
• AU-Scale Synchrotron Jets and Superluminal Ejecta in GRS 1915+105
• The "universal" radio/X-ray flux correlation : the case study of the black hole GX 339-4
• Radiatively efficient accreting black holes in the hard state: the case study of H1743-322
• On the Origin of Radio Emission in the X-ray States of XTE J1650-500 during the 2001-2002 Outburst
• Transient Black Hole Binaries
• The radio/X-ray domain of black hole X-ray binaries at the lowest radio luminosities
• Disc-jet coupling in the 2009 outburst of the black hole candidate H1743-322
• The X-ray Spectra of Black Hole X-ray Novae in Quiescence as Measured by Chandra
• An extremely powerful long-lived superluminal ejection from the black hole MAXI J1820+070
• The very flat radio - millimetre spectrum of Cygnus X-1
• Disk-jet coupling in the 2017/2018 outburst of the Galactic black hole candidate X-ray binary MAXI J1535-571
• X-ray outbursts of low-mass X-ray binary transients observed in the RXTE era
• Correlation between Hard X-ray Peak Flux and Soft X-ray Peak Flux in the Outburst Rise of Low Mass X-ray Binaries
• The 2005 outburst of GRO J1655-40: spectral evolution of the rise, as observed by Swift
• Spectral differences between the jets in `radio loud' and `radio quiet' hard state black hole binaries
• The relation between radio and X-ray luminosity of black hole binaries: affected by inner cool disks?
• Radio-loudness in black hole transients: evidence for an inclination effect
• On the role of the magnetic field on jet emission in X-ray binaries
• Hard X-ray Flares Preceding Soft X-ray Outbursts in Aquila X-1: A Link between Neutron Star and Black Hole State Transitions
• The 2018 outburst of BHXB H1743-322 as seen with MeerKAT
• The discovery outburst of the X-ray transient IGR J17497-2821 observed with RXTE and ATCA
• The hybrid radio/X-ray correlation of the black hole transient MAXI J1348-630
• Radio & X-ray detections of GX 339--4 in quiescence using MeerKAT and Swift
• Radio flaring and dual radio loud/quiet behaviour in the new candidate black hole X-ray binary MAXI J1631-472
• Discovery and evolution of the new black hole candidate Swift J1539.2-6227 during its 2008 outburst
• The X-ray view of black-hole candidate Swift J1842.5-1124 during its 2008 outburst

Cited by in corpus (2)

• A Dependable Distance Estimator to Black Hole Low-Mass X-ray Binaries
• Lensed fast radio bursts as a probe of time-varying gravitational potential induced by wave dark matter