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Global VLBI Observations of M82

Published online by Cambridge University Press:  13 May 2016

A.R. McDonald ,
T.W. B. Muxlow ,
A. Pedlar ,
M.A. Garrett  and
K.A. Wills
A.R. McDonald
Affiliation:
University of Manchester, Jodrell Bank Observatory, Lower Withington, Macclesfield, Cheshire SK11 9DL, UK
T.W. B. Muxlow
Affiliation:
University of Manchester, Jodrell Bank Observatory, Lower Withington, Macclesfield, Cheshire SK11 9DL, UK
A. Pedlar
Affiliation:
University of Manchester, Jodrell Bank Observatory, Lower Withington, Macclesfield, Cheshire SK11 9DL, UK
M.A. Garrett
Affiliation:
Joint Institute for VLBI in Europe, Postbus 2, 7990 Dwingeloo, The Netherlands
K.A. Wills
Affiliation:
Department of Physics, University of Sheffield, Sheffield S3 7RH, UK

Abstract

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Images are presented of the starburst galaxy M82 from a 20-station global VLBI experiment with an angular resolution of up to 3 mas. These images resolve several of the sources into a number of components and with future VLBI experiments the expansion of these components may be tracked on a ∼2 year timescale. Expansion of one of the brightest remnants in M82 has already been measured on a ∼10 year timescale using the European VLBI Network (EVN) alone and an expansion rate of 10,000 km s−1 calculated. Furthermore, limits on the deceleration of this remnant have been deduced. Further VLBI experiments will be able to better constrain the deceleration of the remnants on a ∼10 year timescale as they continue to interact with the interstellar medium in M82.

Type
Supernovae, Pulsars, and the Interstellar Medium
Information
Symposium - International Astronomical Union , Volume 205: Galaxies and their Constituents at the Highest Angular Resolutions , 2001 , pp. 374 - 375
Copyright
Copyright © Astronomical Society of the Pacific 2001 

References

Kronberg, P. P., & Wilkinson, P. N. 1975, ApJ, 200, 430.Google Scholar
Kronberg, P. P., Biermann, P., Schwab, F. R. 1985, ApJ, 291, 693.Google Scholar
Muxlow, T. W. B., Pedlar, A., Wilkinson, P. N., Axon, D. J., Sanders, E. M., de Bruyn, A. G. 1994, MNRAS 266, 455.Google Scholar
Unger, S. W., Pedlar, A., Axon, D. J., Wilkinson, P. N., Appleton, P. N. 1984, MNRAS, 211, 783.Google Scholar