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A real light echo - Nova Persei 1901Observations of Nova Persei 1901, a light echo from SN 1987A, are reviewed. The large broken outer ring and bright inner ring of the nova are examined. The outer ring has been shown to increase its radius at a speed of about 11 arcmin/year. Since the distance to Nova Persei 1901 is about 400-600 pc, the apparent projected velocity of expansion is about 4-5 c, making the nova the first observed superluminal cosmic source.
Document ID
19890041510
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Felten, J. E. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1988
Subject Category
Astrophysics
Meeting Information
Meeting: Geroge Mason Astrophysics Workshop
Location: Fairfax, VA
Country: United States
Start Date: October 12, 1987
End Date: October 14, 1987
Sponsors: NASA
Accession Number
89A28881
Distribution Limits
Public
Copyright
Other

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