2018ApJ...865..113V


C.D.S. - SIMBAD4 rel 1.7 - 2021.04.14CEST12:22:11

2018ApJ...865..113V - Astrophys. J., 865, 113-113 (2018/October-1)

Looking for the elusive 3:2 ratio of high-frequency quasi-periodic oscillations in the microquasar XTE J1550-564.

VARNIERE P. and RODRIGUEZ J.

Abstract (from CDS):

Using the two main XTE J1550-564 outbursts (1998-99 and 2000), we gathered about 30 observations with confirmed detections of high-frequency quasi-periodic oscillations (HFQPOs). While this is a small sample it is enough to start looking at the generic properties of these oscillations, especially focusing on their frequencies and their potential harmonic relationship. This then will provide us with a list of constraints, which are necessary for any attempt to model their origin. We defined five groups based on their similarities in the Fourier domain, namely the continuum of their power-density spectra (PDS) and the HFQPO frequencies. We then combined the individual PDS of each family to obtain a PDS with higher statistics to search for other potential, previously undetected, weaker peaks. While we have two 3σ potential detections of a pair of HFQPOs in our combined PDS, none of them show HFQPOs with frequencies in a previously claimed 3:2 ratio. Using the results presented here we propose an updated list of requirements for any model trying to explain the HFQPOs in microquasars.

Abstract Copyright: © 2018. The American Astronomical Society. All rights reserved.

Journal keyword(s): accretion, accretion disks - black hole physics - stars: individual: XTE J1550-564 - stars: oscillations

Simbad objects: 8

goto Full paper

goto View the reference in ADS

Number of rows : 8

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 V* V381 Nor HXB 15 50 58.6520652623 -56 28 35.309070422   17.95 16.6     K3III 1062 0
2 X Nor X-1 LXB 16 34 01.610 -47 23 34.80           ~ 438 0
3 [GHJ2008] 3 HXB 16 50 00.980 -49 57 43.60     11.89     K4V 358 0
4 V* V1033 Sco HXB 16 54 00.137 -39 50 44.90   15.20 14.2 16.14   F5IV 1751 1
5 [KRL2007b] 222 LXB 17 09 07.61 -36 24 25.7           ~ 220 1
6 NAME XTE J17464-3213 LXB 17 46 15.59637 -32 14 00.8600           ~ 631 0
7 V* V406 Vul HXB 18 58 41.580 +22 39 29.40 15.00 15.65 15.31     G5V-K0V 326 0
8 Granat 1915+105 HXB 19 15 11.55576 +10 56 44.9052           ~ 2361 0

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2018ApJ...865..113V and select 'bookmark this link' or equivalent in the popup menu


2021.04.14-12:22:11

© Université de Strasbourg/CNRS

    • Contact