2008A&A...489..669B


C.D.S. - SIMBAD4 rel 1.7 - 2019.11.20CET17:06:13

2008A&A...489..669B - Astronomy and Astrophysics, volume 489, 669-676 (2008/10-2)

INTEGRAL long-term monitoring of the supergiant fast X-ray transient XTE J1739-302.

BLAY P., MARTINEZ-NUNEZ S., NEGUERUELA I., POTTSCHMIDT K., SMITH D.M., TORREJON J.M., REIG P., KRETSCHMAR P. and KREYKENBOHM I.

Abstract (from CDS):

In the past few years, a new class of high mass X-ray binaries (HMXRB) has been claimed to exist, the supergiant fast X-ray transients (SFXT). These are X-ray binary systems with a compact companion orbiting a supergiant star which show very short and bright outbursts in a series of activity periods overimposed on longer quiescent periods. Only very recently the first attempts to model the behaviour of these sources have been published, some of them within the framework of accretion from clumpy stellar winds. Our goal is to analyze the properties of XTE J1739-302/IGR J17391-3021 within the context of the clumpy structure of the supergiant wind. We have used INTEGRAL and RXTE/PCA observations to obtain broad band (1-200keV) spectra and light curves of XTE J1739-302 and investigate its X-ray spectrum and temporal variability. We have found that XTE J1739-302 follows a much more complex behaviour than expected. Far from presenting a regular variability pattern, XTE J1739-302 shows periods of high, intermediate, and low flaring activity.

Abstract Copyright:

Journal keyword(s): binaries: close - supergiants - X-rays: binaries

Simbad objects: 10

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Number of rows : 10

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 V* V662 Cas HXB 01 18 02.6973905772 +65 17 29.829417242 12.27 11.99 11.14 10.33 9.58 B1Iae 226 0
2 V* GP Vel HXB 09 02 06.8610736194 -40 33 16.896402010 6.85 7.37 6.87 6.31 6.05 B0.5Ia 1355 0
3 HD 306414 s*b 11 21 46.8237210288 -59 51 47.969821291 10.12 10.69 10.23 10.00   B1Ia 132 0
4 HD 153919 HXB 17 03 56.7728262865 -37 50 38.912077679 6.06 6.78 6.51 6.08 5.90 O6Iafcp 746 1
5 V* V934 Her LP* 17 06 34.5143100938 +23 58 18.652285813 11.20 9.16 7.62     M2III 116 0
6 AX J1739.1-3020 HXB 17 39 11.5521531365 -30 20 37.783172824   17.0 14.8     O8.5Iab(f) 141 0
7 NAME Gal Center reg 17 45 40.04 -29 00 28.1           ~ 11052 0
8 4U 1907+09 HXB 19 09 37.9 +09 49 49   19.41 16.35 14.40 12.53 O8.5Iab 305 1
9 4U 1954+31 HXB 19 55 42.3379574888 +32 05 49.039923678   12.02 9.97     M4/5III 99 0
10 BD+53 2790 HXB 22 07 56.2368407539 +54 31 06.405811141 9.4 10.11 9.84 9.64 9.43 O9.5Vep 171 0

    Equat.    Gal    SGal    Ecl

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2019.11.20-17:06:13

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