A search for T Tauri stars in high-latitude molecular clouds. I. IRAS sources and CCD imaging
- Arecibo Observatory (Puerto Rico) E. O. Hulburt Center for Space Research, Washington, DC (USA) Georgia Univ., Athens (USA) Maryland Univ., College Park (USA)
Results are reported from a search for excess H-alpha emission from point sources in 19 high-Galactic-latitude molecular clouds (two dark clouds and 17 translucent clouds). A total of 111 candidate sources from the IRAS Point Source Catalog were evaluated, but most of these (except for five T Tau stars in the dark clouds) were found to be 100-micron cirrus sources, galaxies, or field stars. CCD observations of 23 ambiguous sources were obtained in the red and H-alpha bands using a CCD detector on the 0.9-m telescope at KPNO during September 1987 and February 1988: no H-alpha/R ratios more than 5 sigma above the respective field averages were found. It is concluded that significant low-mass star formation in translucent high-latitude molecular clouds is unlikely. 30 refs.
- OSTI ID:
- 6863857
- Journal Information:
- Astrophysical Journal; (USA), Vol. 357; ISSN 0004-637X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
GENERAL PHYSICS
T TAURI STARS
IDENTIFICATION SYSTEMS
BALMER LINES
CHARGE-COUPLED DEVICES
COSMIC GASES
INFRARED RADIATION
INTERSTELLAR SPACE
MILKY WAY
PHOTOGRAPHY
STAR EVOLUTION
ELECTROMAGNETIC RADIATION
ERUPTIVE VARIABLE STARS
FLUIDS
GALAXIES
GASES
RADIATIONS
SEMICONDUCTOR DEVICES
SPACE
STARS
VARIABLE STARS
640102* - Astrophysics & Cosmology- Stars & Quasi-Stellar
Radio & X-Ray Sources