NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
Optical spectroscopy of IRAS sources with infrared emission bands - IRAS 21282+5050 and the diffuse interstellar bandsSpectroscopy of the starlike optical counterpart to IRAS 21282+5050, a source with the 'hydrocarbon' IR emission band spectrum, shows an O7(f)-(WC 11) planetary nebula nucleus suffering an extinction of 5.7 mag. Emission-line widths in the WC spectrum are only about 100 km/s, indicating a very slow stellar wind. Optical diffuse interstellar bands (DIBs) are prominent, and five DIBs are strongly enhanced. The presence of circumstellar hydrocarbon molecules may explain both the IR emission bands and the enhanced DIBs.
Document ID
19880026644
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
doi:10.1086/185023
Authors
Cohen, Martin (California, University Berkeley, United States)
Jones, B. F. (Lick Observatory Santa Cruz, CA, United States)
Date Acquired
August 13, 2013
Publication Date
October 15, 1987
Publication Information
Publication: Astrophysical Journal, Part 2 - Letters to the Editor
Volume: 321
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
88A13871
Funding Number(s)
CONTRACT_GRANT: NCC2-142
CONTRACT_GRANT: NSF AST-86-14510
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.

Related Records

There are no records associated with this record.
No Preview Available