NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Early stellar evolutionResearch into the formation and early evolution of stars is currently an area of great interest and activity. The theoretical and observational foundations for this development are reviewed in this paper. By now, the basic physics governing cloud collapse is well understood, as is the structure of the resulting protostars. However, the theory predicts protostellar luminosities that are greater than those of most infrared sources. Observationally, it is thought that protostars emit powerful winds that push away remnant cloud gas, but both the origin of these winds and the nature of their interaction with ambient gas are controversial. Finally, the theory of pre-main-sequence stars has been modified to incorporate more realistic initial conditions. This improvement helps to explain the distribution of such stars in the H-R diagram. Many important issues, such as the origin of binary stars and stellar clusters, remain as challenges for future research.
Document ID
19950028645
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Stahler, Steven W.
(Univ. of Calif., Berkeley, CA United States)
Date Acquired
August 16, 2013
Publication Date
April 1, 1994
Publication Information
Publication: Publications of the Astronomical Society of the Pacific
Volume: 106
Issue: 698
ISSN: 0004-6280
Subject Category
Astrophysics
Accession Number
95A60244
Funding Number(s)
CONTRACT_GRANT: AST-9014479
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available