Rapidly evolving disk-jet coupling during re-brightenings in the black hole transient MAXI J1535-571

Abstract

The main outburst of the candidate black hole low-mass X-ray binary (BH LMXB) MAXI J1535-571 ended in 2018 May and was followed by at least five episodes of re-brightenings. We have monitored this re-brightening phenomenon at X-ray and radio wavelengths using the {\it Neil Gehrels Swift Observatory} and Australia Telescope Compact Array, respectively. The first two re-brightenings exhibited a high peak X-ray luminosity (implying a high mass accretion rate) and were observed to transition from the hard to the soft state. However, unlike the main outburst, these re-brightenings did not exhibit clear hysteresis. During the re-brightenings, when MAXI J1535-571 was in the hard state, we observed the brightening of a compact radio jet which was subsequently quenched when the source transitioned to a similar soft state as was observed during the main outburst. We report on the first investigation of disk-jet coupling over multiple rapidly evolving re-brightenings in a BH LMXB. We find that the accretion flow properties and the accompanying compact jet evolve on a similarly rapid time scale of ~days rather than the typical value of ~weeks as observed for most other BH LMXBs during their main outburst events.

accepted for publication by ApJ Letters

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Cited by in corpus (9)

• The black hole transient MAXI J1348-630: evolution of the compact and transient jets during its 2019/2020 outburst
• NICER observations reveal that the X-ray transient MAXI J1348-630 is a Black Hole X-ray binary
• Rapid compact jet quenching in the Galactic black hole candidate X-ray binary MAXI J1535-571
• A NICER look at the state transitions of the black hole candidate MAXI J1535-571 during its reflares
• Disk-jet coupling changes as a possible indicator for outbursts from GX 339-4 remaining within the X-ray hard state
• A broadband radio view of transient jet ejecta in the black hole candidate X-ray binary MAXI J1535-571
• Seven reflares, a mini-outburst and an outburst : High amplitude optical variations in the black hole X-ray binary Swift J1910.2-0546
• Investigating the nature and properties of MAXI J1810-222 with radio and X-ray observations
• Swift/XRT, Chandra and XMM-Newton observations of IGR J17091-3624 as it returns into quiescence