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 (17) (Citation History)
· Refereed Citations to the Article
· Reads History
· Translate This Page
Gravitational collapse and rotation. I - Mass shedding and reduction of the a/m ratio
Miller, J. C.; de Felice, F.
AA(Scuola Internazionale Superiore di Studi Avanzati, Trieste, Italy; Oxford University, England), AB(Scuola Internazionale Superiore di Studi Avanzati, Trieste; Padova, Università, Padua, Italy)
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 298, Nov. 15, 1985, p. 474-479. Research supported by the Ministero della Pubblica Istruzione and CNR. (ApJ Homepage)
Publication Date:
NASA/STI Keywords:
Black Holes (Astronomy), Gravitational Collapse, Stellar Mass, Stellar Rotation, Angular Momentum, Astronomical Models, Magnetic Fields, Relativistic Theory, Stellar Mass Ejection
Bibliographic Code:


The material contained within a stationary black hole event horizon must satisfy the condition a/m is less than 1, where a is the specific angular momentum and m is the gravitational mass, both quantities being measured in geometrized units. For most astrophysical objects which might undergo gravitational collapse leading to black hole formation, the ratio a/m is greater than 1, and so the question arises of how it could be reduced. Mass shedding is one possible mechanism. It is shown here that mass shedding will very frequently occur, but that a/m cannot, in general, be reduced to less than above 40 percent of its initial value by this means unless there is significant redistribution of angular momentum during the collapse.

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