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 (56) (Citation History)
· Refereed Citations to the Article
· Reads History
· Translate This Page
Discovery of outflows from young stellar objects in BOK globules
Yun, Joao Lin; Clemens, Dan P.
AA(Boston University, MA), AB(Boston University, MA)
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 385, Jan. 20, 1992, p. L21-L25. (ApJL Homepage)
Publication Date:
NASA/STI Keywords:
Early Stars, Pre-Main Sequence Stars, Star Formation, Stellar Winds, Infrared Astronomy Satellite, Interstellar Matter, Molecular Clouds, Stellar Mass Accretion
Bibliographic Code:


Results of a search for outflows associated with low-mass young stellar objects (YSOs) in a sample of 41 small Bok globules are presented. New outflows were found in 14 of the samples. Five globules were observed to be rotating, with velocity gradients in the range 0.1-0.7 km/s arcmin. The presence of an outflow was found to be correlated with the value of the IRAS-based spectral index (between 12 and 25 microns) of the YSOs. Outflows were not detected in most globules whose IRAS point sources had spectral indices consistent with T Tauri or older stars. It is inferred that outflows occur during a fairly early stage of the star formation process when the YSOs are still deeply embedded in gas and dust. It is argued that the good mechanical coupling observed to exist between the outflow and the ambient cloud supports the idea that outflows can be responsible for a variety of effects, including cloud support, dispersal, or the end of accretion onto the forming star.

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