2015A&A...577A.130F


Query : 2015A&A...577A.130F

2015A&A...577A.130F - Astronomy and Astrophysics, volume 577A, 130-130 (2015/5-1)

Ephemeris, orbital decay, and masses of ten eclipsing high-mass X-ray binaries.

FALANGA M., BOZZO E., LUTOVINOV A., BONNET-BIDAUD J.M., FETISOVA Y. and PULS J.

Abstract (from CDS):

We update the ephemeris of the eclipsing high-mass X-ray binary (HMXB) systems LMC X-4, Cen X-3, 4U 1700-377, 4U 1538-522, SMC X-1, IGR J18027-2016, Vela X-1,IGR J17252-3616, XTE J1855-026, and OAO 1657-415 with the help of more than ten years of monitoring these sources with the All Sky Monitor onboard RXTE and with the Integral Soft Gamma-Ray Imager onboard INTEGRAL. These results are used to refine previous measurements of the orbital period decay of all sources (where available) and provide the first accurate values of the apsidal advance in VelaX-1 and 4U1538-522. Updated values for the masses of the neutron stars hosted in the ten HMXBs are also provided, as well as the long-term light curves folded on the best determined orbital parameters of the sources. These light curves reveal complex eclipse ingresses and egresses that are understood mostly as being caused by accretion wakes. Our results constitute a database to be used for population and evolutionary studies of HMXBs and for theoretical modeling of long-term accretion in wind-fed X-ray binaries.

Abstract Copyright:

Journal keyword(s): stars: neutron - binaries: eclipsing - X-rays: binaries - pulsars: general

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 - 2024
#notes
1 SK 160 HXB 01 17 05.1457288392 -73 26 36.014808156 12.23 13.00 13.15   13.17 O9.7Ia+ 858 0
2 V* V635 Cas HXB 01 18 31.9704955824 +63 44 33.072603144 17.05 16.64 15.19 14.34 13.22 B0.2Ve 743 0
3 X LMC X-4 HXB 05 32 49.5556042296 -66 22 13.202721768   13.9 14.0     O8III 668 0
4 V* GP Vel HXB 09 02 06.8608812864 -40 33 16.899168060 6.85 7.37 6.87 6.31 6.05 B0.5Ia 1504 0
5 V* V779 Cen HXB 11 21 15.0920532528 -60 37 25.630264596   14.4 12.27     O9III/Veq 1096 0
6 V* QV Nor HXB 15 42 23.3633146128 -52 23 09.577395960   16.3 14.5     B0.2Ia:e 420 1
7 NAME OAO 1657-41 HXB 17 00 48.884 -41 39 21.46           Ofpe/WN9 247 0
8 HD 153919 HXB 17 03 56.7725629224 -37 50 38.913331452 6.06 6.78 6.51 6.08 5.90 O6Iafcp 813 1
9 2MASS J17251139-3616575 HXB 17 25 11.392 -36 16 57.53     14.30     B0-1Ia 125 2
10 SAX J1802.7-2017 HXB 18 02 41.9407199832 -20 17 17.312648064   17.4 16.4     BIII 88 0
11 XTE J1855-026 HXB 18 55 30.4058947392 -02 36 16.737653700   16.451 14.512 14.056   B0Iaep 95 0

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