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Variability of young massive stars in the Arches cluster

Published online by Cambridge University Press:  12 July 2011

Kostas Markakis
Affiliation:
National Observatory of Athens, Institute of Astronomy & Astrophysics, I. Metaxa & Vas. Pavlou St., P. Penteli 15236, Athens, Greece; email: markakis@astro.noa.gr
Alceste Z. Bonanos
Affiliation:
National Observatory of Athens, Institute of Astronomy & Astrophysics, I. Metaxa & Vas. Pavlou St., P. Penteli 15236, Athens, Greece; email: markakis@astro.noa.gr
Grzegorz Pietrzynski
Affiliation:
Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warszawa, Poland
Lucas Macri
Affiliation:
Department of Physics, Texas A&M University, College Station, TX 77842-4242, USA
Kris Z. Stanek
Affiliation:
The Ohio State University, 140 West 18th Avenue, Columbus, OH 43210, USA
Corresponding
E-mail address:
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Abstract

We present preliminary results of the first near-infrared variability study of the Arches cluster, using adaptive optics data from NIRI/Gemini and NACO/VLT. The goal is to discover eclipsing binaries in this young (2.5 ± 0.5 Myr), dense, massive cluster for which we will determine accurate fundamental parameters with subsequent spectroscopy. Given that the Arches cluster contains more than 200 Wolf-Rayet and O-type stars, it provides a rare opportunity to determine parameters for some of the most massive stars in the Galaxy.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2011

References

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