Published July 1995
| Published
Journal Article
Open
The Nonvariability of the Progenitor of Supernova 1993J in M81
- Creators
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Cohen, Judith G.
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Darling, Jeremy
- Porter, Alain
Abstract
An archive of images taken in the early 1980s exists for a field which includes the progenitor of supernova 1993J in M81. Fifty-four CCD frames in V, and several in other colors from this set taken in 1984 are analyzed to demonstrate that the progenitor of supernova 1993J was not variable to within a limit of 0.2 mag. The frames analyzed cover a time span of 150 days. The colors of the M81 SN progenitor are consistent with those of a late G supergiant.
Additional Information
© American Astronomical Society • Provided by the NASA Astrophysics Data System. J. G. C. is grateful to Alvio Renzini for helpful discussions and for the hospitality of the Institute of Astronomy at the University of Bologna. National Science Foundation (NSF) Grant No. AST-8212270 supported the search for novae in M81 and other nearby galaxies. J. K. D. was supported in part by a Student Undergraduate Research Fellowship from Caltech and in part by a REU supplement to NSF Grant No. AST-9213761.Attached Files
Published - 1995AJ____110__308C.pdf
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1995AJ____110__308C.pdf
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Additional details
- Eprint ID
- 96089
- Resolver ID
- CaltechAUTHORS:20190603-153225250
- AST-8212270
- NSF
- Caltech Summer Undergraduate Research Fellowship (SURF)
- AST-9213761
- NSF Undergraduate Research Program
- Created
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2019-06-04Created from EPrint's datestamp field
- Updated
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2021-11-16Created from EPrint's last_modified field