2001A&A...365L.273S

Query : 2001A&A...365L.273S

2001A&A...365L.273S - Astronomy and Astrophysics, volume 365, L273-276 (2001/1-1)

XMM-Newton optical monitor observations of LMC X-3.

SORIA R., WU K., PAGE M.J. and SAKELLIOU I.

Abstract (from CDS):

We study the optical counterpart of the black-hole X-ray binary LMC X-3, by using XMM-Newton/OM observations carried out during a low-hard X-ray state. We derive a better constraint for the temperature, mass and radius of the companion star, and we show that the star is likely to be a ∼B5 subgiant filling its Roche lobe. Taking into account the effect of X-ray irradiation, we suggest a value fM≃1.5M☉ for the mass function in this system, lower than previously thought; we provide a more accurate lower limit to the mass of the compact object.

Abstract Copyright: ∼

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

Simbad objects: 4

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Number of rows : 4
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 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 17434 0
2 X LMC X-3 HXB 05 38 56.6323605504 -64 05 03.317937504   17 17.2     B2.5Ve 675 0
3 V* V1033 Sco HXB 16 54 00.137 -39 50 44.90   15.20 14.2 16.14   F5IV 1887 1
4 HD 226868 HXB 19 58 21.6757355952 +35 12 05.784512688 9.38 9.72 8.91 8.42   O9.7Iabpvar 4337 0

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