2016ApJ...822...99C


C.D.S. - SIMBAD4 rel 1.7 - 2021.04.19CEST13:44:18

2016ApJ...822...99C - Astrophys. J., 822, 99-99 (2016/May-2)

Mass ratio determination from H_ α _ lines in black hole X-ray transients.

CASARES J.

Abstract (from CDS):

We find that the mass ratio q in quiescent black hole (BH) X-ray transients is tightly correlated with the ratio of the double-peak separation (DP) to the full width half maximum (FWHM) of the H_ α_ emission line, logq=-6.88-23.2  log(DP/FWHM) . This correlation is explained through the efficient truncation of the outer disk radius by the 3:1 resonance with the companion star. This is the dominant tidal interaction for extreme mass ratios q={M}{2}/{M}{1}\lesssim 0.25 , the realm of BH (and some neutron star) X-ray transients. Mass ratios can thus be estimated with a typical uncertainty of ≃32%, provided that the H_ α_ profile used to measure DP/FWHM is an orbital phase average. We apply the DP/FWHM-q relation to the three faint BH transients XTE J1650-500, XTE J1859+226, and Swift J1357-0933 and predict q={0.026}_{-0.007}^{+0.038} , {0.049}_{-0.012}^{+0.023} and {0.040}_{-0.005}^{+0.003} , respectively. This new relation, together with the FWHM{K}_{2} correlation presented in Paper I, allows the extraction of fundamental parameters from very faint targets and, therefore, the extension of dynamical BH studies to much deeper limits than was previously possible. As an example, we combine our mass ratio determination for Swift J1357-0933 with previous reported values to yield a BH mass of 12.4±3.6 M. This confirms Swift J1357-0933 as one of the most massive BH low-mass X-ray binaries in the Galaxy.

Abstract Copyright: © 2016. The American Astronomical Society. All rights reserved.

Journal keyword(s): accretion, accretion disks - binaries: close - stars: black holes - stars: dwarf novae - stars: neutron

Simbad objects: 27

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Number of rows : 27

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* HT Cas CV* 01 10 13.1213309510 +60 04 35.489284826     14.10     M5.5e 369 0
2 V* GK Per No* 03 31 12.0096626899 +43 54 15.467450081   10.2 14.0     K1IV 874 0
3 V* V518 Per HXB 04 21 42.7231318463 +32 54 26.936934166 13.00 13.50 13.2     M4.5V 626 1
4 1A 0620-00 HXB 06 22 44.5420315454 -00 20 44.289428950 10.60 11.40 11.2     K3V-K7V 1052 0
5 V* U Gem CV* 07 55 05.2323858391 +22 00 05.045435077   15.3 14.54     DA 1054 0
6 V* OY Car CV* 10 06 22.0792108747 -70 14 04.582997921           ~ 554 0
7 2MASS J10065842+2337245 CV* 10 06 58.4172560310 +23 37 24.467327120           D+M3e 20 0
8 V* MM Vel HXB 10 13 36.4107940553 -45 04 32.555813596   14.84 14.71     G5V-M0V 187 0
9 SDSS J103533.02+055158.4 CV* 10 35 33.0223106272 +05 51 58.347085513   18.57 18.80     DA 46 0
10 V* KV UMa HXB 11 18 10.7922353051 +48 02 12.319175505     12.25     K5V-M1V 737 0
11 V* GU Mus HXB 11 26 26.5947467816 -68 40 32.888148788           K3V-K7V 677 1
12 V* V1258 Cen CV* 13 00 29.0622260014 -30 52 56.953193443           ~ 20 0
13 CRTS J135716.8-093238 HXB 13 57 16.8357614768 -09 32 38.793867836           M4.5V 123 0
14 V* BW Cir HXB 13 58 09.700 -64 44 05.80 17.90 18.00 16.9     ~ 202 1
15 PM J14332+1011 CV* 14 33 17.7876511635 +10 11 23.489772646     18.86     ~ 41 0
16 V* V822 Cen LXB 14 58 21.9350279092 -31 40 07.515505032 11.95 12.85 12.8     K3-K7V 516 0
17 V* V381 Nor HXB 15 50 58.6520652623 -56 28 35.309070422   17.95 16.6     K3III 1062 0
18 [GHJ2008] 3 HXB 16 50 00.980 -49 57 43.60     11.89     K4V 358 0
19 V* V2107 Oph HXB 17 08 14.520 -25 05 30.15   16.50 15.9     K3V-K7V 213 1
20 V* V2051 Oph CV* 17 08 19.0875545832 -25 48 31.695764973   17.5       ~ 231 0
21 V* V406 Vul HXB 18 58 41.580 +22 39 29.40 15.00 15.65 15.31     G5V-K0V 326 0
22 Granat 1915+105 HXB 19 15 11.55576 +10 56 44.9052           ~ 2361 0
23 V* QZ Vul HXB 20 02 49.58 +25 14 11.3   19.64 18.2     K3V-K6V 400 0
24 V* WZ Sge CV* 20 07 36.5036203067 +17 42 14.733657651   15.30 15.20     DAepv 899 0
25 V* V404 Cyg HXB 20 24 03.820 +33 52 01.90 14.50 14.20 12.7     K0IV 1125 0
26 V* LZ Aqr LXB 21 23 14.54 -05 47 52.9 15.90 16.78 16.8     ~ 144 0
27 V* IP Peg CV* 23 23 08.5362716048 +18 24 59.206210572           M2 364 0

    Equat.    Gal    SGal    Ecl

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2021.04.19-13:44:18

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