Protostellar candidates in a sample of bright far-infrared IRAS sources
- 1. Dominion Radio Astrophysical Observatory, Penticton (Canada)
- 2. British Columbia Univ., Vancouver (Canada)
Description
CO and radio continuum emission has been observed in the direction of 39 bright 100-micron sources from the IRAS point source catalog in an attempt to better understand the early stages of star formation. All 39 sources are found to be associated with molecular clouds and are generally characterized by high temperatures (15-40 K) and wide wings in the profiles (up to 34 km/s). Twenty-six of the 39 sources show wide (C-12)O lines, which are interpreted as a result of gas outflow associated with star formation processes. Of the 24 sources for which distances and 6-cm flux densities can be assigned, 11 are premain sequence objects, and 4 others are possibly in this category. Six of the eleven premain sequence sources have associated continuum emission. 30 refs
Additional details
Publishing Information
- Journal Title
- Astronomical Journal
- Journal Volume
- 101
- Series
- Astron. J.
- Journal Page Range
- 1435-1465
- ISSN
- 0004-6256
- CODEN
- ANJOA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 22067671
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- CARBON MONOXIDE; COSMIC GASES; DETECTION; FAR INFRARED RADIATION; GAS FLOW; HERTZSPRUNG-RUSSELL DIAGRAM; INDEXES; MAIN SEQUENCE STARS; POINT SOURCES; PROTOSTARS; RADIOWAVE RADIATION; STAR EVOLUTION
- Descriptors DEC
- CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; DIAGRAMS; DOCUMENT TYPES; ELECTROMAGNETIC RADIATION; FLUID FLOW; FLUIDS; GASES; INFORMATION; INFRARED RADIATION; OXIDES; OXYGEN COMPOUNDS; RADIATION SOURCES; RADIATIONS; STARS