NDLI: Interstellar mg ii and c iv absorption by 1 1/2 galaxies along the sightline to mrk 205

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Interstellar mg ii and c iv absorption by 1 1/2 galaxies along the sightline to mrk 205

Content Provider	NASA Technical Reports Server (NTRS)
Author	Bowen, David V. Blades Sr., J. Chris
Copyright Year	1993
Description	The first results of our HST survey designed to search for Mg 2 and C 4 absorption lines from the disks and halos of low-redshift galaxies using background QSO's and supernovae as probes are presented. Our survey utilizes the high resolution of the Goddard High Resolution Spectrograph enabling us to calculate the column densities and doppler parameters of individual components within an absorption complex, and hence determine the physical conditions of the absorbing gas. Observing the complexity of the absorption line profiles i.e., the velocity distribution and total velocity extent of the constituent components, offers an important description of the kinematics of the absorbing gas, and hence an understanding of its origin. Focus is on one sight line in particular, that towards Mrk 205, which passes 3-5 kpc from the intervening galaxy NGC 4319. Mg 2 and C 4 absorption from both local Milky Way halo gas and from NGC 4319 is detected.
File Size	265381
Page Count	3
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19930017581
Archival Resource Key	ark:/13960/t6353k402
Language	English
Publisher Date	1993-01-01
Access Restriction	Open
Subject Keyword	Astrophysics Galactic Halos High Resolution Spectrographs Supernovae Milky Way Galaxy Sky Surveys Astronomy Absorption Spectra Line Spectra Velocity Distribution Interstellar Gas Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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