Bibcode
Camero-Arranz, A.; Wilson, C. A.; Connell, P.; Martínez Núñez, S.; Blay, P.; Beckmann, V.; Reglero, V.
Bibliographical reference
Active OB-Stars: Laboratories for Stellar and Circumstellar Physics, ASP Conference Series, Vol. 361, Proceedings of the conference held 29 August - 2 September, 2005 at Hokkai-Gakuen University, Sapporo, Japan. Edited by S. Stefl, S. P. Owocki, and A. T. Okazaki. San Francisco: Astronomical Society of the Pacific, 2007., p.402
Advertised on:
3
2007
Citations
1
Refereed citations
0
Description
During INTEGRAL's Performance and Verification phase (December 2002) a
type-I outburst of the Be/X-ray binary EXO 2030+375 was detected. A
pulse period of 41.691798±0.000016 s was found, and the ]
luminosity in the 5-300 keV energy range was 9.7×10^{36} erg
s^{-1} for a distance of 7.1 kpc. 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. The physical mechanisms producing
these two features are unknown. The 5-300 keV broad-band spectrum can
be modeled by the sum of a disk black body (kT_{BB} ˜8 keV) with
either a power law model with Γ=2.04±0.11 keV or a
Comptonized component (spherical geometry, kT_e=30 keV, τ=2.64,
kT_W=1.5 keV).