A Wildly Flickering Jet in the Black Hole X-Ray Binary MAXI J1535-571
Artikel i vetenskaplig tidskrift, 2018
We report on the results of optical, near-infrared (NIR), and mid-infrared observations of the black hole X-ray binary candidate (BHB) MAXI J1535-571 during its 2017/2018 outburst. During the first part of the outburst (MJD 58004-58012), the source shows an optical-NIR spectrum that is consistent with an optically thin synchrotron power law from a jet. After MJD 58015, however, the source faded considerably, the drop in flux being much more evident at lower frequencies. Before the fading, we measure a dereddened flux density of 100 mJy in the mid-infrared, making MAXI J1535-571 one of the brightest mid-infrared BHBs known so far. A significant softening of the X-ray spectrum is evident contemporaneous with the infrared fade. We interpret it as being due to the suppression of the jet emission, similar to the accretion-ejection coupling seen in other BHBs. However, MAXI J1535-571 did not transition smoothly to the soft state, instead showing X-ray hardness deviations associated with infrared flaring. We also present the first mid-IR variability study of a BHB on minute timescales, with a fractional rms variability of the light curves of ∼15%-22%, which is similar to that expected from the internal shock jet model, and much higher than the optical fractional rms (≲7%). These results represent an excellent case of multiwavelength jet spectral timing and demonstrate how rich, multiwavelength time-resolved data of X-ray binaries over accretion state transitions can help in refining models of the disk-jet connection and jet launching in these systems.
accretion, accretion disks
X-rays: binaries
ISM: jets and outflows
black hole physics
Författare
Maria Cristina Baglio
Osservatorio Astronomico di Brera
New York University Abu Dhabi
David M. Russell
New York University Abu Dhabi
Piergiorgio Casella
Osservatorio Astronomico di Roma
Hind Al Noori
New York University Abu Dhabi
Aisha Al Yazeedi
New York University Abu Dhabi
Tomaso Belloni
Osservatorio Astronomico di Brera
David A.H. Buckley
South African Astronomical Observatory
Marion Cadolle Bel
SIXT Leasing
Chiara Ceccobello
Chalmers, Rymd-, geo- och miljövetenskap, Astronomi och plasmafysik, Galaktisk astrofysik
S. Corbel
USN - Station de Radioastronomie de Nancay
Institut de Recherche sur les Lois Fondamentales de l'Univers
Francesco Coti Zelati
Universitat Autonoma de Barcelona (UAB)
Osservatorio Astronomico di Brera
Institut d'Estudis Espacials de Catalunya (IEEC)
M. Diaz-Trigo
European Southern Observatory (ESO)
R. P. Fender
University of Oxford
Elena Gallo
University of Michigan
Poshak Gandhi
University of Southampton
Jeroen Homan
Eureka Scientific, Inc.
Netherlands Institute for Space Research (SRON)
Karri I.I. Koljonen
Turun Yliopisto
Aalto-Yliopisto
Fraser Lewis
Liverpool John Moores University
Cardiff University
T. J. Maccarone
Texas Tech University at Lubbock
Julien Malzac
Université de Toulouse
S. Markoff
Universiteit Van Amsterdam
J. C. A. Miller-Jones
Curtin University
Kieran O'Brien
Durham University
Thomas D. Russell
Universiteit Van Amsterdam
P. Saikia
New York University Abu Dhabi
Tariq Shahbaz
Instituto Astrofisico de Canarias
Universidad de la Laguna
G. R. Sivakoff
University of Alberta
Roberto Soria
Chinese Academy of Sciences
The University of Sydney
Curtin University
Vincenzo Testa
Osservatorio Astronomico di Roma
Alexandra J. Tetarenko
University of Alberta
East Asian Observatory
Mario E. Van Den Ancker
European Southern Observatory (ESO)
Federico M. Vincentelli
Universita degli Studi dell'Insubria
Osservatorio Astronomico di Brera
Osservatorio Astronomico di Roma
Astrophysical Journal
0004-637X (ISSN) 1538-4357 (eISSN)
Vol. 867 2 114Ämneskategorier
Astronomi, astrofysik och kosmologi
Atom- och molekylfysik och optik
Annan fysik
DOI
10.3847/1538-4357/aae532