2005A&A...441..261C


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.19CEST23:08:55

2005A&A...441..261C - Astronomy and Astrophysics, volume 441, 261 (2005/10-1)

INTEGRAL observations of the Be/X-ray binary EXO 2030+375 during outburst.

CAMERO ARRANZ A., WILSON C.A., CONNELL P., MARTINEZ NUNEZ S., BLAY P., BECKMANN V. and REGLERO V.

Abstract (from CDS):

We present a type-I outburst of the high-mass X-ray binary EXO 2030+375, detected during INTEGRAL's Performance and Verification phase in December 2002 (on-source time about 106s). In addition, six more outbursts have been observed during INTEGRAL's Galactic Plane Scans. X-ray pulsations have been detected with a pulse period of 41.691798±0.000016s. The X-ray luminosity in the 5-300keV energy range was 9.7x1036erg/s, for a distance of 7.1kpc. Two unusual features were found in the light curve, with an initial peak before the main outburst and another possible spike after the maximum. RXTE observations confirm only the existence of the initial spike. Although the initial peak appears to be a recurrent feature, the physical mechanisms producing it and the possible second spike are unknown. Moreover, a four-day delay between periastron passage and the peak of the outburst is observed. We present for the first time a 5-300keV broad-band spectrum of this source. It can be modelled by the sum of a disk black body (kTBB∼8keV) with either a power law model with Γ=2.04±0.11keV or a Comptonized component (spherical geometry, kTe=30keV, τ=2.64, kTW=1.5keV).

Abstract Copyright:

Journal keyword(s): accretion, accretion disks - stars: binaries: close - stars: individual: EXO 2030+375 - 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 - 2019
#notes
1 V* V1055 Ori LXB 06 17 07.3 +09 08 13   18.80 18.5     ~ 499 1
2 4U 1722-30 LXB 17 27 33.25 -30 48 07.4           ~ 231 1
3 NAME XTE J17464-3213 LXB 17 46 15.59637 -32 14 00.8600           ~ 569 0
4 2XMM J180112.4-254436 LXB 18 01 12.40 -25 44 36.1           ~ 358 1
5 V* V1333 Aql LXB 19 11 16.05 +00 35 05.8 15.00 15.40 14.8     ~ 988 0
6 HD 226868 HXB 19 58 21.6758193269 +35 12 05.782512305 9.38 9.72 8.91 8.42   O9.7Iabpvar 3845 0
7 NAME Cyg Complex reg 20 32 +45.0           ~ 507 0
8 V* V2246 Cyg HXB 20 32 15.2744631713 +37 38 14.839930326   22.16 19.41 17.32 15.18 B0Ve 370 0
9 V* V1521 Cyg HXB 20 32 25.78 +40 57 27.9           WN4/5-6/7 1742 2
10 GSC 03588-00834 HXB 21 03 35.7101268891 +45 45 05.568943629   15.34 14.20 13.49 12.75 B0Ve 145 0
11 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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2019.10.19-23:08:55

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