Sign on

SAO/NASA ADS Astronomy Abstract Service

· Find Similar Abstracts (with default settings below)
· Full Refereed Journal Article (PDF/Postscript)
· Full Refereed Scanned Article (GIF)
· References in the article
· Citations to the Article (187) (Citation History)
· Refereed Citations to the Article
· SIMBAD Objects (72)
· Reads History
·
· Translate This Page
Title:
Coronal gas in the Galaxy. I - A new survey of interstellar O VI
Authors:
Jenkins, E. B.
Affiliation:
AA(Princeton University, New Observatory, Princeton, N.J.)
Publication:
Astrophysical Journal, Part 1, vol. 219, Feb. 1, 1978, p. 845-860. (ApJ Homepage)
Publication Date:
02/1978
Category:
Astronomy
Origin:
STI
NASA/STI Keywords:
Absorption Spectra, Galactic Structure, Interstellar Matter, Oxygen Ions, Ultraviolet Spectra, B Stars, Line Spectra, O Stars, Oao 3, Optical Thickness, Radial Velocity, Spaceborne Astronomy, Stellar Spectra
DOI:
10.1086/155846
Bibliographic Code:
1978ApJ...219..845J

Abstract

Ultraviolet spectra of 40 O- and B-type stars have been intensively scanned in the vicinity of the O VI transitions at 1032 and 1038 A with the Copernicus satellite. This survey of the high-temperature (log T about 5.5) phase of interstellar gas is an extension of the earlier observations of interstellar O VI by Jenkins and Meloy (1974), bringing the total coverage up to 72 stars. Except for a few distant stars, the overall quality of the present data surpasses that of the earlier work. Plots of absorption optical depths versus radial velocity are presented for both transitions in each star. Total column densities (or their upper limits), velocity centroids, and velocity widths have been extracted from the profiles and tabulated, with the results of Jenkins and Meloy (1974) included. Qualitatively, the highly variable O VI densities and velocities seem to exhibit no systematic patterns or regional trends; there is no recognizable correlation in the behavior of coronal gas with pronounced features of galactic structure.

Printing Options

Print whole paper
Print Page(s) through

Return 600 dpi PDF to Acrobat/Browser. Different resolutions (200 or 600 dpi), formats (Postscript, PDF, etc), page sizes (US Letter, European A4, etc), and compression (gzip,compress,none) can be set through the Printing Preferences


More Article Retrieval Options

HELP for Article Retrieval
Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)
  New!

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