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Characteristics of millimeter variability of Sgr A*

Published online by Cambridge University Press:  22 May 2014

T. Tsutsumi ,
A. Miyazaki  and
M. Tsuboi
T. Tsutsumi
Affiliation:
National Radio Astronomy Observatory, Socorro, NM, U. S. A. email: ttsutsum@nrao.edu
A. Miyazaki
Affiliation:
Korean VLBI Network, Korea Astronomy and Space Science Institute, Daejeon, Korea email: amiya@kasi.re.kr
M. Tsuboi
Affiliation:
Institute of Space and Astronautical Science, Sagamihara, Japan email: tsuboi@vsop.isas.jaxa.jp
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Abstract

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We present the analysis of flux variations of Sgr A* at millimeter wavelengths based on the long-term monitoring project spanning over a decade using the Nobeyama Millimeter Array. We investigate basic characteristics of the flux variability using some standard parameterizations of the data. Such basic properties of the flux variations in the mm-regime can provide valuable information not only for its underlying mechanisms in general but also for understanding observed radio/mm flux measurements during an accretion event.

Keywords

Galaxy: center — black hole physics — radio continuum: galaxies — techniques: interferometric
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 9 , Symposium S303: The Galactic Center: Feeding and Feedback in a Normal Galactic Nucleus , October 2013 , pp. 385 - 387
Copyright
Copyright © International Astronomical Union 2014 

References

Macquart, & Bower, 2006, ApJ 641, 302.Google Scholar
Miyazaki, A., Tsutsumi, T., & Tsuboi, M. 2004, ApJ Lett. 611, L97Google Scholar