Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...312..314d&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 312, Jan. 1, 1987, p. 314-320. Research supported by the Robert A. Welch Fo
Astronomy and Astrophysics
Astronomy
16
Cassiopeia A, Infrared Sources (Astronomy), Infrared Spectra, Interstellar Matter, Line Spectra, Metallicity, Radio Sources (Astronomy), Spectrum Analysis, Stellar Evolution, Supernova Remnants
Scientific paper
The Cas A supernova remnant is a strong emitter of radiation in the radio and the X-ray spectral regions; recently it has been detected at several infrared wavelengths including the IRAS bands. The authors report here results of various ground-based and airborne infrared observations. The measurements include broad-band (Larcmin, N, and Q) photometric observations and spectroscopic observations in the 10 μm spectral region. The authors present evidence for a faint 10.5 μm [S IV] line from one of the brightest metal-rich knots (KB 61) and set upper limits on [Ar III] 8.99 μm and [Ne II] 12.8 μm. These measurements suggest that at least half and possibly all of the emission in the 8 - 13 μm band from the knot could be due to lines. There is also evidence for a small mass of very hot dust associated with KB 61.
Dinerstein Harriet L.
Lester Daniel F.
Rank David M.
Werner Michael W.
Wooden Diane H.
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