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VLBI Observations of Supernova 1987A

Published online by Cambridge University Press:  03 August 2017

I. Shapiro ,
N. Bartel ,
R. Preston ,
D. Jones ,
A. Kemball ,
G. Nicolson ,
D. Jauncey ,
J. Reynolds ,
A. Whitney  and
A. Rogers
...Show all authors
I. Shapiro
Affiliation:
Harvard-Smithsonian Center for Astrophysics, U.S.A.
N. Bartel
Affiliation:
Harvard-Smithsonian Center for Astrophysics, U.S.A.
R. Preston
Affiliation:
Jet Propulsion Laboratory, California Inst. of Technology, U.S.A.
D. Jones
Affiliation:
Jet Propulsion Laboratory, California Inst. of Technology, U.S.A.
A. Kemball
Affiliation:
Hartebeesthoek Radio Astronomy Observatory, South Africa
G. Nicolson
Affiliation:
Hartebeesthoek Radio Astronomy Observatory, South Africa
D. Jauncey
Affiliation:
CSIRO, Australia
J. Reynolds
Affiliation:
Mt. Stromlo and Siding Springs Observatory, Australia
A. Whitney
Affiliation:
NEROC Haystack Observatory, U.S.A.
A. Rogers
Affiliation:
NEROC Haystack Observatory, U.S.A.
R. Phillips
Affiliation:
NEROC Haystack Observatory, U.S.A.
T. Clark
Affiliation:
Goddard Space Flight Center, U.S.A.
D. Robertson
Affiliation:
National Geodetic Survey, U.S.A.

Abstract

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VLBI observations at 2.3 GHz of SN1987A on 28 February 1987 yielded no fringes, implying, for an optically thin shell, a lower bound on the (outer) diameter of 1.9 mas. From the comparison of the VLBI and optical results, we infer that the radiosphere of SN1987A was either about equal to, or larger than, the photosphere of the supernova five days after the explosion.

Type
Extragalactic
Information
Symposium - International Astronomical Union , Volume 129: The Impact of VLBI on Astrophysics and Geophysics , 1988 , pp. 185 - 186
Copyright
Copyright © Reidel 1988 

References

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