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Radio observations of Galactic Center massive stars

Published online by Cambridge University Press:  26 May 2016

Cornelia C. Lang
Cornelia C. Lang*
Affiliation:
Astronomy Program, University of Massachusetts, Amherst, MA 01003, USA

Abstract

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High-resolution multi-frequency observations made with the VLA have revealed the presence of stellar winds in two of the three known massive stellar clusters at the Galactic Center (GC). At a distance of only 8.0 kpc, we are able to resolve radio sources associated with individual near-infrared sources known to be losing mass at high rates. Herein, I discuss the spectral and spatial properties of the radio sources and their near-infrared counterparts, their inferred mass-loss rates, variability and the prospects for detecting stellar winds sources in the Central Cluster, near the supermassive blackhole SgrA*. Such massive clusters as these three GC clusters have a profound impact on the interstellar medium, as evidenced by radio and X-ray observations of the surrounding regions.

Type
Part 3. Location and Distribution of Massive Stars
Information
Symposium - International Astronomical Union , Volume 212: A Massive Star Odyssey: From Main Sequence to Supernova , 2003 , pp. 497 - 504
Copyright
Copyright © Astronomical Society of the Pacific 2003 

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