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

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 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.

6 pages, 2 figures

References in corpus (9)

• X-ray Properties of Black-Hole Binaries
• HI4PI: A full-sky HI survey based on EBHIS and GASS
• WSClean: an implementation of a fast, generic wide-field imager for radio astronomy
• An online repository of Swift/XRT light curves of GRBs
• An optimized algorithm for multi-scale wideband deconvolution of radio astronomical images
• The radio/X-ray domain of black hole X-ray binaries at the lowest radio luminosities
• Spectral differences between the jets in `radio loud' and `radio quiet' hard state black hole binaries
• ThunderKAT: The MeerKAT Large Survey Project for Image-Plane Radio Transients
• The early phase of a H1743-322 outburst observed by INTEGRAL, RXTE, Swift, and XMM/Newton

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