NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
ISM chemical abundances in two intermediate-velocity clouds in the line of sight to SN 1987AThe earliest IUE high-resolution spectra of SN 1987A have been studied and reveal the presence of several clouds in the line of sight to the LMC. In particular, there are two clouds with radial velocities of about 130 km/s and about 180 km/s. These clouds' velocities are between those of Galactic clouds at 0-80 km/s and those of LMC gas at about 270 km/s. Chemical-abundance determinations may help to determine the origin and location of these clouds. Curve-of-growth analysis and 21-cm observations show that they may be underabundant in heavy elements by about a factor of 2 as compared to solar abundances. No depletion indicative of grain formation can be seen.
Document ID
19890024094
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Morgan, Siobahn (Washington Univ. Seattle, WA, United States)
Bohm-Vitense, Erika (Washington, University Seattle, United States)
Date Acquired
August 13, 2013
Publication Date
October 1, 1988
Publication Information
Publication: Astronomical Journal
Volume: 96
ISSN: 0004-6256
Subject Category
ASTROPHYSICS
Funding Number(s)
CONTRACT_GRANT: NSG-5398
Distribution Limits
Public
Copyright
Other