2017ApJ...834...90H


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.12CEST15:54:44

2017ApJ...834...90H - Astrophys. J., 834, 90-90 (2017/January-1)

Detection of very low-frequency, quasi-periodic oscillations In the 2015 outburst of V404 Cygni.

HUPPENKOTHEN D., YOUNES G., INGRAM A., KOUVELIOTOU C., GOGUS E., BACHETTI M., SANCHEZ-FERNANDEZ C., CHENEVEZ J., MOTTA S., VAN DER KLIS M., GRANOT J., GEHRELS N., KUULKERS E., TOMSICK J.A. and WALTON D.J.

Abstract (from CDS):

In 2015 June, the black hole X-ray binary (BHXRB) V404 Cygni went into outburst for the first time since 1989. Here, we present a comprehensive search for quasi-periodic oscillations (QPOs) of V404 Cygni during its recent outburst, utilizing data from six instruments on board five different X-ray missions: Swift/XRT, Fermi/GBM, Chandra/ACIS, INTEGRAL's IBIS/ISGRI and JEM-X, and NuSTAR. We report the detection of a QPO at 18 mHz simultaneously with both Fermi/GBM and Swift/XRT, another example of a rare but slowly growing new class of mHz-QPOs in BHXRBs linked to sources with a high orbital inclination. Additionally, we find a duo of QPOs in a Chandra/ACIS observation at 73 mHz and 1.03 Hz, as well as a QPO at 136 mHz in a single Swift/XRT observation that can be interpreted as standard Type-C QPOs. Aside from the detected QPOs, there is significant structure in the broadband power, with a strong feature observable in the Chandra observations between 0.1 and 1 Hz. We discuss our results in the context of current models for QPO formation.

Abstract Copyright: © 2017. The American Astronomical Society. All rights reserved.

Journal keyword(s): methods: statistical - relativistic processes - stars: black holes - X-rays: binaries - X-rays: binaries

Simbad objects: 11

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Number of rows : 11

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 NAME IC 10 X-1 HXB 00 20 29.09 +59 16 51.9           ~ 148 0
2 X LMC X-1 HXB 05 39 38.8285930597 -69 44 35.533031148   14.8 14.5     O8(f)p 560 2
3 CRTS J135716.8-093238 HXB 13 57 16.8357614768 -09 32 38.793867836           M4.5V 110 0
4 V* KZ TrA LXB 16 32 16.79 -67 27 39.3 17.40 18.60 18.5     ~ 524 1
5 V* V821 Ara HXB 17 02 49.3810714542 -48 47 23.163091737 16.20 16.30 15.5     ~ 1764 0
6 [KRL2007b] 222 LXB 17 09 07.61 -36 24 25.7           ~ 209 1
7 NAME XTE J17464-3213 LXB 17 46 15.59637 -32 14 00.8600           ~ 599 0
8 Granat 1915+105 LXB 19 15 11.54938 +10 56 44.7585           ~ 2285 0
9 HD 226868 HXB 19 58 21.6758193269 +35 12 05.782512305 9.38 9.72 8.91 8.42   O9.7Iabpvar 3925 0
10 V* V404 Cyg HXB 20 24 03.820 +33 52 01.90 14.50 14.20 12.7     K0IV 1090 0
11 V* V1521 Cyg HXB 20 32 25.78 +40 57 27.9           WN4/5-6/7 1765 2

    Equat.    Gal    SGal    Ecl

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2020.07.12-15:54:44

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