The 2018 outburst of BHXB H1743−322 as seen with MeerKAT. (11th October 2019)

• Record Type: Journal Article
• Authors: Williams, D R A; Motta, S E; Fender, R; Bright, J; Heywood, I; Tremou, E; Woudt, P; Buckley, D A H; Corbel, S; Coriat, M; Joseph, T; Rhodes, L; Sivakoff, G R; van der Horst, A J
• Is Part Of: Monthly notices of the Royal Astronomical Society. Volume 491:Number 1(2020)
• Page Start: L29
• Page End: L33
• Publication Date: 2019-10-11
• Subjects: X-rays: binaries -- radio continuum: transients; Astronomy -- Research -- Periodicals; Periodicals; 520.5
• DOI: 10.1093/mnrasl/slz152
• Languages: English
• ISSNs: 1745-3933

Abstract

ABSTRACT: 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 Monitor of All-sky X-ray Image 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.