The 2018 outburst of BHXB H1743−322 as seen with MeerKAT

Journal article

In recent years, the black hole candidate X-ray binary system H1743-322 has undergone outbursts and it has been observed with X-ray and radio telescopes. We present 1.3 GHz MeerKAT radio data from the ThunderKAT Large Survey Project on radio transients for the 2018 outburst of H1743-322. We obtain seven detections from a weekly monitoring programme and use publicly available Swift X-ray Telescope and MAXI data to investigate the radio/X-ray correlation of H1743-322 for this outburst. We compare the 2018 outburst with those reported in the literature for this system and find that the X-ray outburst reported is similar to previously reported 'hard-only' outbursts. As in previous outbursts, H1743-322 follows the 'radio-quiet' correlation in the radio/X-ray plane for black hole X-ray binaries, and the radio spectral index throughout the outburst is consistent with the 'radio-quiet' population.

Authors: Williams, DRA; Motta, SE; Fender, R; Bright, J; Heywood, I

• Publication status: Published
• Peer review status: Peer reviewed
• Publisher: Oxford University Press
• Journal: Monthly Notices of the Royal Astronomical Society
• Volume: 491
• Issue: 1
• Pages: L28-L33
• Publication date: 2019-10-11
• Acceptance date: 2019-09-30
• DOI: 10.1093/mnrasl/slz152
• EISSN: 1365-2966
• ISSN: 0035-8711
• Keywords: FFR