Disk-Jet Coupling in the 2017/2018 Outburst of the Galactic Black Hole Candidate X-Ray Binary MAXI J1535-571
Artikel i vetenskaplig tidskrift, 2019

MAXI J1535-571 is a Galactic black hole candidate X-ray binary that was discovered going into outburst in 2017 September. In this paper, we present comprehensive radio monitoring of this system using the Australia Telescope Compact Array, as well as the MeerKAT radio observatory, showing the evolution of the radio jet during its outburst. Our radio observations show the early rise and subsequent quenching of the compact jet as the outburst brightened and then evolved toward the soft state. We constrain the compact jet quenching factor to be more than 3.5 orders of magnitude. We also detected and tracked (for 303 days) a discrete, relativistically moving jet knot that was launched from the system. From the motion of the apparently superluminal knot, we constrain the jet inclination (at the time of ejection) and speed to <= 45 degrees and >= 0.69 c, respectively. Extrapolating its motion back in time, our results suggest that the jet knot was ejected close in time to the transition from the hard intermediate state to soft intermediate state. The launching event also occurred contemporaneously with a short increase in X-ray count rate, a rapid drop in the strength of the X-ray variability, and a change in the type-C quasi-periodic oscillation (QPO) frequency that occurs >2.5 days before the first appearance of a possible type-B QPO.

black hole physics

ISM: jets and outflows

accretion, accretion disks

radio continuum: stars

X-rays: binaries

stars: individual (MAXI J1535-571)


T. D. Russell

Universiteit Van Amsterdam

A. J. Tetarenko

East Asian Observatory

University of Alberta

J. C. A. Miller-Jones

Curtin University

G. R. Sivakoff

University of Alberta

A. S. Parikh

Universiteit Van Amsterdam

S. Rapisarda

Chinese Academy of Sciences

Universiteit Van Amsterdam

R. Wijnands

Universiteit Van Amsterdam

S. Corbel

Université Paris-Saclay

Universite d'Orleans

E. Tremou

Université Paris-Saclay

D. Altamirano

University of Southampton

M. C. Baglio

New York University Abu Dhabi

Chiara Ceccobello

Chalmers, Rymd-, geo- och miljövetenskap, Astronomi och plasmafysik

N. Degenaar

Universiteit Van Amsterdam

J. van den Eijnden

Universiteit Van Amsterdam

R. Fender

University of Oxford

I Heywood

Rhodes University

University of Oxford

H. A. Krimm

National Science Foundation

M. Lucchini

Universiteit Van Amsterdam

S. Markoff

Universiteit Van Amsterdam

D. M. Russell

New York University Abu Dhabi

R. Soria

Chinese Academy of Sciences

The University of Sydney

P. A. Woudt

University of Cape Town

Astrophysical Journal

0004-637X (ISSN) 1538-4357 (eISSN)

Vol. 883 2 198


Astronomi, astrofysik och kosmologi

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