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The exciting star of HH 57The first spectral classification for the exciting star of HH 57 is provided. The star is an F8 III and suffers about 5 mag of visual extinction, far greater than that toward the HH 57A knot, only a few arcseconds away. This difference supports the previous identification of a flattened geometry for the circumstellar dust around this star. Using IRAS photometry, a distance of 940 pc to HH 57 is determined by bolometrically matching the observed luminosity of the star to those of FU Ori and V1057 Cyg.
Document ID
19860046726
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
doi:10.1086/184636
Authors
Cohen, M. (NASA Ames Research Center Moffett Field; California, University, Berkeley, United States)
Dopita, M. A. (Mount Stromlo and Siding Spring Observatories Canberra, Australia)
Schwartz, R. (Missouri-St. Louis, University MO, United States)
Date Acquired
August 12, 2013
Publication Date
March 15, 1986
Publication Information
Publication: Astrophysical Journal, Part 2 - Letters to the Editor
Volume: 302
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
86A31464
Funding Number(s)
CONTRACT_GRANT: NSF AST-82-01430
CONTRACT_GRANT: NCC2-142
Distribution Limits
Public
Copyright
Other

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