Hostname: page-component-8448b6f56d-c4f8m Total loading time: 0 Render date: 2024-04-24T10:40:40.080Z Has data issue: false hasContentIssue false
  • English
  • Français

Variability of young massive stars in the Arches cluster

Published online by Cambridge University Press:  12 July 2011

Kostas Markakis ,
Alceste Z. Bonanos ,
Grzegorz Pietrzynski ,
Lucas Macri  and
Kris Z. Stanek
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
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

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.

Keywords

Galaxy: centerinfrared: starsopen clusters and associations: individual (Arches cluster)binaries: eclipsingstars: variables: otherstars: Wolf-Rayet
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 6 , Symposium S272: Active OB stars: structure, evolution, mass loss, and critical limits , July 2010 , pp. 298 - 299
Copyright
Copyright © International Astronomical Union 2011

References

Alard, C. & Lupton, R. H. 1998, ApJ, 503, 325CrossRefGoogle Scholar
Alard, C. 2000, A&AS, 144, 363Google Scholar
Blum, R. D., Schaerer, D., Pasquali, A., Heydari-Malayeri, M. et al. 2001, AJ, 122, 1875CrossRefGoogle Scholar
Diolaiti, E., Bendinelli, O., Bonaccini, D., Close, L. et al. 2000, A&AS, 147, 335Google Scholar
Figer, D. F., Najarro, F., Gilmore, D., Morris, M. et al. 2002, ApJ, 581, 258CrossRefGoogle Scholar
Lang, C. C., Goss, W. M. & Rodríguez, L. F. 2001, ApJ (Letters), 551, L143CrossRefGoogle Scholar
Stetson, P. B. 1987, PASP, 99, 191CrossRefGoogle Scholar
Wang, Q. D., Dong, H., & Lang, C. 2006, MNRAS, 371, 38CrossRefGoogle Scholar