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Recent developments in supernova research with VLBI

Published online by Cambridge University Press:  29 January 2014

Norbert Bartel  and
Michael F. Bietenholz
Norbert Bartel
Affiliation:
York University, Toronto, M3J 1P3Canada email: bartel@yorku.ca
Michael F. Bietenholz
Affiliation:
York University, Toronto, M3J 1P3Canada email: bartel@yorku.ca Hartebeesthoek Radio Observatory, PO Box 443, Krugersdrop 1740, South Africa email: mbieten@yorku.ca
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Abstract

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Very long baseline interferometry (VLBI) observations during the last 30 years have resolved many supernovae and provided detailed measurements of the expansion velocity and deceleration. Such measurements are useful for estimating the radial density profiles of both the ejecta and the circumstellar medium left over from the progenitor. VLBI measurements are also the most direct way of confirming the relativistic expansion velocities thought to occur in supernovae associated with gamma-ray bursts. Well-resolved images of a few supernovae have been obtained, and the interaction of the ejecta as it expands into the circumstellar medium could be monitored in detail. We discuss recent results, for SN 1979C, SN 1986J, and SN 1993J, and note that updated movies of the latter two of the supernovae from soon after the explosion to the present are available from the first author's personal website.

Keywords

techniques: high angular resolutionradio continuum: starssupernovae: generalsupernovae: individual (SN 1979C, SN 1986J, SN 1993J)stars: mass lossstars: neutrongalaxies: distances and redshifts
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 9 , Symposium S296: Supernova Environmental Impacts , January 2013 , pp. 53 - 57
Copyright
Copyright © International Astronomical Union 2014 

References

Bartel, N. & Bietenholz, M. F. 2003, ApJ, 591, 301CrossRefGoogle Scholar
Bartel, N. & Bietenholz, M. F. 2008, ApJ, 682, 1065CrossRefGoogle Scholar
Bartel, N., Bietenholz, M. F., Rupen, M. P., & Dwarkadas, V. V. 2007, ApJ, 668, 924CrossRefGoogle Scholar
Bartel, N., Rogers, A. E. E., Shapiro, I. I., et al. 1985, Nature, 318, 25Google Scholar
Bartel, N., Bietenholz, M. F., Rupen, M. P., et al. 2002, ApJ, 581, 404CrossRefGoogle Scholar
Bietenholz, M. F., Bartel, N., & Rupen, M. P. 2001, ApJ, 557, 770Google Scholar
Bietenholz, M. F., Bartel, N., & Rupen, M. P. 2003, ApJ, 597, 374Google Scholar
Bietenholz, M. F., Bartel, N., & Rupen, M. P. 2004, Science, 304, 1947Google Scholar
Bietenholz, M. F., Bartel, N., & Rupen, M. P. 2010a, ApJ, 712, 1057Google Scholar
Bietenholz, M., Bartel, N., Rupen, M. P., et al. 2010b, in 10th European VLBI Network Symposium and EVN Users Meeting: VLBI and the New Generation of Radio Arrays (Proceedings of Science), 57BGoogle Scholar
Brunthaler, A., Martí-Vidal, I., Menten, K. M., et al. 2010a, A&A, 516, A27Google Scholar
Brunthaler, A., Martí-Vidal, I., Menten, K. M., et al. 2010b, in 10th European VLBI Network Symposium and EVN Users Meeting: VLBI and the New Generation of Radio Arrays (Proceedings of Science), 55BGoogle Scholar
Chevalier, R. A. 2012, ApJ (Letters), 752, L2CrossRefGoogle Scholar
Marcaide, J. M., Martí-Vidal, I., Alberdi, A., et al. 2009a, A&A, 505, 927Google Scholar
Marcaide, J. M., Martí-Vidal, I., Perez-Torres, M. A., et al. 2009b, A&A, 503, 869Google Scholar
Martí-Vidal, I., Marcaide, J. M., Alberdi, A., et al. 2011a, A&A, 526, A142Google Scholar
Martí-Vidal, I., Marcaide, J. M., Alberdi, A., et al. 2011b, A&A, 526, A143Google Scholar
Mioduszewski, A. J., Dwarkadas, V. V., & Ball, L. 2001, ApJ, 562, 869Google Scholar
Ng, C.-Y., Potter, T. M., Staveley-Smith, L., et al. 2011, ApJ (Letters), 728, L15Google Scholar