2001A&A...365L.267W


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.15CEST11:06:01

2001A&A...365L.267W - Astronomy and Astrophysics, volume 365, L267-272 (2001/1-1)

XMM-Newton EPIC and RGS observations of LMC X-3.

WU K., SORIA R., PAGE M.J., SAKELLIOU I., KAHN S.M. and DE VRIES C.P.

Abstract (from CDS):

We report the results of preliminary analysis of the XMM-Newton EPIC and RGS observations of the candidate black-hole binary LMC X-3 between February and June 2000. The observations covered both the soft and the hard X-ray spectral states. The hard-state spectra were dominated by a power-law component with a photon index Γ≃1.9. The soft-state spectra consisted of a thermal component with a multi-colour disk temperature Tin of ∼0.9keV and a power-law tail with Γ≃2.7. The model in which the X-rays from LMC X-3 in the high-soft state are powered by a strong stellar wind from a massive companion is not supported by the small line-of-sight absorption (nH ≲1021cm–2) deduced from the RGS data. The transition from the soft to the hard state appears to be a continuous process associated with the changes in the mass-transfer rate.

Abstract Copyright:

Journal keyword(s): accretion, accretion disks - black hole physics - binaries: general - stars: early type - stars: winds, outflows - X-rays: general

Simbad objects: 3

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Number of rows : 3

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 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 14833 1
2 X LMC X-3 HXB 05 38 56.6325045489 -64 05 03.321118015   17 17.2     B2.5Ve 630 0
3 V* V1033 Sco HXB 16 54 00.137 -39 50 44.90   15.20 14.2 16.14   F5IV 1701 1

    Equat.    Gal    SGal    Ecl

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2020.07.15-11:06:01

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