The Optical Gravitational Lensing Experiment. Short Distance Scale to the LMC

Details The Optical Gravitational Lensing Experiment. Short Distance Scale to the LMC The Optical Gravitational Lensing Experiment. Short Distance Scale to the LMC

1998-09-27

arxiv.org/abs/astro-ph/9809346v2

Astronomy and Astrophysics

Astrophysics

11 pages, Latex, 2 Figures. Accepted for publication in Astrophysical Journal Letters. New version - trimmed to fit ApJL. Addi

Scientific paper

10.1086/311763

We present {\it UBVI} photometry of the eclipsing binary HV2274 - the system which has been recently used for distance determination to the LMC by Guinan et al. (1998). We determine the interstellar reddening to the star, E(B-V)=0.149+/-0.015 mag, based on observed colors of the star. This value is in excellent agreement with the mean reddening towards HV2274 obtained from photometry of the red clump stars in the surrounding field. The reddening is almost twice as large as determined by Guinan et al. (1998). We discuss the consequences of reddening underestimate. Most likely HV2274 is located much closer with the distance modulus to the star and the LMC: m-M = 18.22+/-0.13 mag supporting the short distance scale to the LMC. Such a distance modulus is in excellent agreement with the recent distance determinations with RR Lyr and red clump stars.

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