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Detection of Stellar Variability in the Central Parsec of the Galaxy

Tamura, M. and Werner, M. W. and Becklin, E. E. and Phinney, E. S. (1994) Detection of Stellar Variability in the Central Parsec of the Galaxy. In: Infrared Astronomy with Arrays: the Next Generation. Astrophysics and Space Science Library. No.190. Springer , Dordrecht, pp. 117-118. ISBN 9789401044660.

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We have searched for time variability of the stars in the central 1 pc region of the Galaxy through K-band imaging and photometry. On timescales ranging from 20 seconds to a week, no time variability greater than 0.1 mag was found for about five dozen sources in this region, including the components of IRS 16 and the anomalous high velocity outflow stars. On a timescale of one year, we found that a new source near IRS 10E had brightened by at least one magnitude and detected possible variability with amplitude ~ 0.15 mag in several other sources.

Item Type:Book Section
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Tamura, M.0000-0002-6510-0681
Additional Information:© Springer Science+Business Media Dordrecht 1994.
Subject Keywords:Infrared: Sources - Stars: Variables
Series Name:Astrophysics and Space Science Library
Issue or Number:190
Record Number:CaltechAUTHORS:20190529-162853998
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:95933
Deposited By: George Porter
Deposited On:30 May 2019 17:17
Last Modified:09 Mar 2020 13:19

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