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The Rho Ophiuchi cloud young stellar population - Results of a near-infrared studyAn imaging survey of 1.4 sq pc of the Rho Ophiuchi dark cloud in the J, H, and K near-infrared photometric bands was conducted. Approximately 332 of the 481 detected sources are associated with the cloud, and 30 percent of these have near-infrared excesses, indicative of disks or circumstellar material surrounding these young stellar objects (YSOs). The K-band luminosity function is significantly different in different regions of the survey area, suggesting that YSOs in these regions have different ages or mass functions. The entire survey area has a high star formation efficiency of about 23 percent. Finally, many newly detected sources provide a relatively large, uniformly sensitive sample of objects for study at longer wavelengths to better determine true source luminosities and evolutionary lifetimes.
Document ID
19920060332
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Greene, Thomas P.
(NASA Ames Research Center Moffett Field, CA, United States)
Young, Erick T.
(Steward Observatory Tucson, AZ, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1991
Publication Information
Publication: Societa Astronomica Italiana, Memorie
Volume: 62
Issue: 4 19
ISSN: 0037-8720
Subject Category
Astrophysics
Accession Number
92A42956
Funding Number(s)
CONTRACT_GRANT: NAG5-1221
Distribution Limits
Public
Copyright
Other

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