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The distance to the Small Magellanic Cloud from eclipsing binaries

Published online by Cambridge University Press:  26 February 2013

Dariusz Graczyk ,
Grzegorz Pietrzyński ,
Bogumił Pilecki ,
Ian B. Thompson ,
Wolfgang Gieren ,
Piotr Konorski ,
Andrzej Udalski  and
Igor Soszyński
Dariusz Graczyk
Affiliation:
Departamento de Astronomía, Universidad de Concepción, Casilla 160-C, Concepción, Chile email: darek@astro-udec.cl, bpilecki@astro-udec.cl, wgieren@astro-udec.cl
Grzegorz Pietrzyński
Affiliation:
Departamento de Astronomía, Universidad de Concepción, Casilla 160-C, Concepción, Chile email: darek@astro-udec.cl, bpilecki@astro-udec.cl, wgieren@astro-udec.cl Obserwatorium Astronomiczne, Uniwersytet Warszawski, Al. Ujazdowskie 4, 00-478 Warszawa, Poland email: pietrzyn@astrouw.edu.pl, piokon@astrouw.edu.pl, udalski@astrouw.edu.pl, soszynsk@astrouw.edu.pl
Bogumił Pilecki
Affiliation:
Departamento de Astronomía, Universidad de Concepción, Casilla 160-C, Concepción, Chile email: darek@astro-udec.cl, bpilecki@astro-udec.cl, wgieren@astro-udec.cl Obserwatorium Astronomiczne, Uniwersytet Warszawski, Al. Ujazdowskie 4, 00-478 Warszawa, Poland email: pietrzyn@astrouw.edu.pl, piokon@astrouw.edu.pl, udalski@astrouw.edu.pl, soszynsk@astrouw.edu.pl
Ian B. Thompson
Affiliation:
Carnegie Observatories, 813 Santa Barbara Street, Pasadena, CA 911101-1292, USA email: ian@obs.carnegiescience.edu
Wolfgang Gieren
Affiliation:
Departamento de Astronomía, Universidad de Concepción, Casilla 160-C, Concepción, Chile email: darek@astro-udec.cl, bpilecki@astro-udec.cl, wgieren@astro-udec.cl
Piotr Konorski
Affiliation:
Obserwatorium Astronomiczne, Uniwersytet Warszawski, Al. Ujazdowskie 4, 00-478 Warszawa, Poland email: pietrzyn@astrouw.edu.pl, piokon@astrouw.edu.pl, udalski@astrouw.edu.pl, soszynsk@astrouw.edu.pl
Andrzej Udalski
Affiliation:
Obserwatorium Astronomiczne, Uniwersytet Warszawski, Al. Ujazdowskie 4, 00-478 Warszawa, Poland email: pietrzyn@astrouw.edu.pl, piokon@astrouw.edu.pl, udalski@astrouw.edu.pl, soszynsk@astrouw.edu.pl
Igor Soszyński
Affiliation:
Obserwatorium Astronomiczne, Uniwersytet Warszawski, Al. Ujazdowskie 4, 00-478 Warszawa, Poland email: pietrzyn@astrouw.edu.pl, piokon@astrouw.edu.pl, udalski@astrouw.edu.pl, soszynsk@astrouw.edu.pl
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Abstract

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A preliminary distance etimate to SMC 108.1.14904, a long-period eclipsing binary in the Small Magellanic Cloud, is presented. The binary system contains two bright, non-active G-type giants. Its orbital period is 185 days and the orbit is circular. Using surface brightness calibration, we obtain a distance modulus to the system of (m-M)= 19.02 ± 0.04 (statistical) ± 0.05 (systematic) mag, where the systematic error is dominated by uncertainties in the surface brightness calibration. This is a second eclipsing binary in the SMC analysed by our team.

Keywords

binaries: eclipsinggalaxies: distances and redshiftsgalaxies: individual (Small Magellanic Cloud)

References

di Benedetto, G. P. 2005, MNRAS, 357, 174Google Scholar
Ciechanowska, A., Pietrzyński, G., Szewczyk, O., Gieren, W., & Soszyński, I. 2010, Acta Astron., 60, 233Google Scholar
Graczyk, D., Pietrzyński, G., Thompson, I. B., et al. 2012, ApJ, 750, 144Google Scholar
Haschke, R., Grebel, E. K., & Duffau, S. 2011, AJ, 141, 158Google Scholar
Hilditch, R. W., Howarth, I. D., & Harries, T. J. 2005, MNRAS, 357, 304Google Scholar
Kapakos, E., Hatzidimitriou, D., & Soszyński, I. 2011, MNRAS, 415, 1366CrossRefGoogle Scholar
Keller, S. C. & Wood, P. R. 2006, ApJ, 642, 834CrossRefGoogle Scholar
Mazeh, T. & Zucker, S. 1994, Ap&SS, 212, 349Google Scholar
North, P., Gauderon, R., Barblan, F., & Royer, F. 2010, A&A, 520, 74Google Scholar
Pietrzyński, G. & Gieren, W. 2002, AJ, 124, 2633Google Scholar
Rucinski, S. M. 1992, AJ, 104, 1968CrossRefGoogle Scholar
Sandage, A. & Tammann, G. A. 2006, ARA&A, 44, 93Google Scholar
Storm, J., Gieren, W., Fouqué, P., Barnes, T. G., Soszyński, I., Pietrzyński, G., Nardetto, N., & Queloz, D. 2011, A&A, 534, 95Google Scholar
Szewczyk, O., Pietrzyński, G., Gieren, W., Ciechanowska, A., Bresolin, F., & Kudritzki, R.-P. 2009, AJ, 138, 1661Google Scholar
Udalski, A., Kubiak, M., & Szymański, M. 1997, Acta Astron., 47, 319Google Scholar
van Hamme, W. & Wilson, R. E. 2007, ApJ, 661, 1129Google Scholar
Wilson, R. E. & Devinney, E. J. 1971, ApJ, 166, 605Google Scholar