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 (57) (Citation History)
· Refereed Citations to the Article
· SIMBAD Objects (12)
· Associated Articles
· Reads History
· Translate This Page
The rotation of horizontal-branch stars. I - Members of the field
Peterson, R. C.; Tarbell, T. D.; Carney, B. W.
AA(Lockheed Research Laboratories, Palo Alto, CA), AB(Lockheed Research Laboratories, Palo Alto, CA)
Astrophysical Journal, Part 1, vol. 265, Feb. 15, 1983, p. 972-981. (ApJ Homepage)
Publication Date:
NASA/STI Keywords:
Horizontal Branch Stars, Spectral Line Width, Stellar Rotation, Stellar Spectra, Abundance, Angular Momentum, Line Spectra, Main Sequence Stars, Spectral Resolution, Stellar Evolution
Bibliographic Code:


Multiple echelle spectra of eight field horizontal-branch stars at a resolution of 2.4 x 10 to the 4th are obtained. At least two stars exhibit intrinsically broadened lines. The line profiles of the broadest lined star are well resolved, and rotation is found unambiguously to be the cause of the broadening. It is pointed out that the inference that rotation is a rather common phenomenon in horizontal-branch stars has several ramifications for the normal stellar evolution of metal-poor stars. The rotation rates of the main-sequence stars implied if the angular momentum is primordial are discussed, together with the possibility that rotation was acquired during the giant-branch phase by angular momentum transfer from a companion.

Associated Articles

Part  1     Part  2     Part  3     Part  4    

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)


Find Similar Abstracts:

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