Sign on

SAO/NASA ADS Astronomy Abstract Service

· Find Similar Abstracts (with default settings below)
· Electronic Refereed Journal Article (HTML)
· Full Refereed Journal Article (PDF/Postscript)
· arXiv e-print (arXiv:astro-ph/0111336)
· On-line Data
· References in the article
· Citations to the Article (29) (Citation History)
· Refereed Citations to the Article
· SIMBAD Objects (8)
· Also-Read Articles (Reads History)
· HEP/Spires Information
·
· Translate This Page
Title:
Deuterium Abundance toward WD 0621-376: Results from the FUSE Mission
Authors:
Lehner, N.; Gry, C.; Sembach, K. R.; Hébrard, G.; Chayer, P.; Moos, H. W.; Howk, J. C.; Désert, J.-M.
Affiliation:
AA(Department of Physics and Astronomy, Johns Hopkins University, 3400 N. Charles Street, Baltimore, MD 21218; .), AB(Laboratoire d'Astronomie Spatiale, B.P. 8, F-13376 Marseille, France.), AC(Department of Physics and Astronomy, Johns Hopkins University, 3400 N. Charles Street, Baltimore, MD 21218; .), AD(Institut d'Astrophysique de Paris, 98 bis Boulevard Arago, F-75014 Paris, France.), AE(Department of Physics and Astronomy, University of Victoria, P.O. Box 3055, Victoria, BC V8W 3P6, Canada.), AF(Department of Physics and Astronomy, Johns Hopkins University, 3400 N. Charles Street, Baltimore, MD 21218; .), AG(Department of Physics and Astronomy, Johns Hopkins University, 3400 N. Charles Street, Baltimore, MD 21218; .), AH(Institut d'Astrophysique de Paris, 98 bis Boulevard Arago, F-75014 Paris, France.)
Publication:
The Astrophysical Journal Supplement Series, Volume 140, Issue 1, pp. 81-89. (ApJS Homepage)
Publication Date:
05/2002
Origin:
UCP
ApJ Keywords:
ISM: Abundances, ISM: Clouds, ISM: Structure, Stars: Individual: Alphanumeric: WD 0621-376, Ultraviolet: ISM, Stars: White Dwarfs
DOI:
10.1086/339129
Bibliographic Code:
2002ApJS..140...81L

Abstract

Far Ultraviolet Spectroscopic Explorer observations are presented for WD 0621-376, a DA white dwarf star in the local interstellar medium (LISM) at a distance of about 78 pc. The data have a signal-to-noise ratio of ~20-40 per 20 km s-1 resolution element and cover the wavelength range 905-1187 Å. LISM absorption is detected in the lines of D I, C II, C II*, C III, N I, N II, N III, O I, Ar I, and Fe II. This sight line is partially ionized, with an ionized nitrogen fraction of greater than 0.23. We determine the ratio D/O=(3.9+1.3-1.0)×10-2 (2 σ). Assuming a standard interstellar oxygen abundance, we derive D/H~1.3×10-5. Using the value of N(H I) derived from Extreme Ultraviolet Explorer data gives a similar D/H ratio. The D I/N I ratio is (3.3+1.0-0.8)×10-1 (2 σ).
Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)
   

Find Similar Abstracts:

Use: Authors
Title
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints