A study of the stellar population in the Lynds 1641 dark cloud. I. The IRAS catalog sources
- Massachusetts Univ., Amherst (USA) Universidad Nacional Autonoma de Mexico, Mexico City (Mexico)
The character of the sources identified in the IRAS Point Source Catalog and located within the boundaries of the nearest giant molecular cloud, Lynds 1641 is discussed. New optical and near-infrared photometry are combined to provide spectral energy distributions (SEDs) for these objects divided into three classes: class I objects with flat or rising spectra, class II objects with spectra intermediate in slope between a flat and blackbody spectrum, and class III objects with spectra similar to those of blackbodies. It is found that L1641 contains a much larger percentage of class I sources than does the nearby Taurus-Auriga star-forming complex. Spectral energy distributions for the IRAS-selected sample are examined and compared with SEDs for young stellar objects (YSOs) located in Taurus-Auriga. The IRAS-selected sources having optical counterparts in the H-R diagram are identified and discussed along with the distribution of masses and ages for these YSOs. 86 refs.
- OSTI ID:
- 7017911
- Journal Information:
- Astrophysical Journal, Supplement Series; (USA), Vol. 71; ISSN 0067-0049
- Country of Publication:
- United States
- Language:
- English
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GENERAL PHYSICS
INFRARED RADIATION
COSMIC RAY SOURCES
T TAURI STARS
AGE ESTIMATION
CATALOGS
COSMIC GASES
EMISSION SPECTRA
ENERGY SPECTRA
INTERSTELLAR SPACE
MASS
PHOTOMETRY
STAR EVOLUTION
STARS
VISIBLE RADIATION
DOCUMENT TYPES
ELECTROMAGNETIC RADIATION
ERUPTIVE VARIABLE STARS
FLUIDS
GASES
RADIATIONS
SPACE
SPECTRA
VARIABLE STARS
640102* - Astrophysics & Cosmology- Stars & Quasi-Stellar
Radio & X-Ray Sources