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The Hubble Space Telescope quasar absorption line key project. III - First observational results on Milky Way gasAbsorption lines found near zero redshift due to Milky Way disk and halo gas in the spectra of 15 quasars observed with the Faint Object Spectrograph (FOS) of the HST at a resolution of about 230 km/s are reported. Results show that Milky Way absorption lines comprise about 44 percent of all absorption lines seen in the first group of Key Project FOS spectra. Milky Way lines were observed for 3C 273 and H1821 + 643. Limits to the Mg-to-H abundance ratio obtained for very high velocity Mg II absorption detections imply gas-phase Mg abundances for the very high velocity gas ranging from more than 0.059 to more than 0.32 times the solar abundance. In all cases where high-velocity H I emission is seen, corresponding high-velocity metal-line absorption is observed.
Document ID
19930068041
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Savage, Blair D.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Lu, Limin
(Wisconsin Univ. Madison, United States)
Bahcall, John N.
(Inst. for Advanced Study Princeton, NJ, United States)
Bergeron, Jacqueline
(CNRS Inst. d'Astrophysique, Paris, France)
Boksenberg, Alec
(Royal Greenwich Observatory Cambridge, United Kingdom)
Hartig, George F.
(Space Telescope Science Inst. Baltimore, MD, United States)
Jannuzi, Buell T.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Kirhakos, Sofia
(Inst. for Advanced Study Princeton, NJ, United States)
Lockman, Felix J.
(National Radio Astronomy Observatory Charlottesville, VA, United States)
Sargent, W. L. W.
(California Inst. of Technology Pasadena, United States)
Date Acquired
August 16, 2013
Publication Date
August 10, 1993
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 413
Issue: 1
ISSN: 0004-637X
Subject Category
Astronomy
Accession Number
93A52038
Funding Number(s)
CONTRACT_GRANT: NAS5-26555
Distribution Limits
Public
Copyright
Other

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