Variability of Young Massive Stars in the Arches Cluster: Accurate Photometry with Adaptive Optics

Details Variability of Young Massive Stars in the Arches Cluster: Accurate Photometry with Adaptive Optics Variability of Young Massive Stars in the Arches Cluster: Accurate Photometry with Adaptive Optics

2011-08-22

arxiv.org/abs/1108.4452v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

2 pages, to appear in the proceedings of the IAUS 282 on "From Interacting Binaries to Exoplanets: Essential Modelling Tools"

Scientific paper

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 $\pm$ 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.

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