SIMBAD references

2002ApJ...574..771R - Astrophys. J., 574, 771-782 (2002/August-1)

Fundamental properties and distances of Large Magellanic Cloud eclipsing binaries. III. EROS 1044.

RIBAS I., FITZPATRICK E.L., MALONEY F.P., GUINAN E.F. and UDALSKI A.

Abstract (from CDS):

We present results from a detailed analysis of a third eclipsing binary (EB) system in the Large Magellanic Cloud, EROS 1044 (∼B2 IV-V+∼B2 III-IV). Our study combines the ``classical'' EB study of light and radial velocity curves with detailed modeling of the observed spectral energy distribution and yields an essentially complete picture of the stellar properties of the system and a determination of its distance. The observational data exploited include optical photometry, space-based UV spectroscopy, and UV/optical spectrophotometry. The advantages of our technique include numerous consistency checks and, in the case of the distance determinations, the absence of zero-point uncertainties and adjustable parameters. We find the EROS 1044 system to consist of a pair of normal, mildly evolved ∼21,000 K stars, whose derived properties are consistent with stellar evolution calculations. The distance to the system is 47.5±1.8 kpc. We discuss the implications of our results for three EB systems (HV 2274, HV 982, and EROS 1044) on the general distance to the Large Magellanic Cloud.

Abstract Copyright:

Journal keyword(s): Stars: Binaries: Eclipsing - Cosmology: Distance Scale - Galaxies: Magellanic Clouds - Stars: Distances - Stars: Fundamental Parameters - Stars: Individual: Alphanumeric: EROS 1044

CDS comments: MACHO object fig.1 and p.782 is MACHO* J053648.7-691700 (2000 coord.)

Simbad objects: 11

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