Published January 1991
| Version v1
Journal article
Abundances of hydrogen sulfide in star-forming regions
- 1. Massachusetts Univ., Amherst (USA)
- 2. Five College Radio Astronomy Observatory (USA)
- 3. Arizona State Univ., Tempe (USA)
- 4. Daeduk Radio Astronomy Observatory, Taejon (Republic of Korea)
Description
Interstellar H2S and its isotopic variant H2(S-34) have been observed toward several star-forming regions via their 1(10)-1(01) transitions at 2 mm, using the FCRAO telescope. In sources where both isotopic species were observed, column densities of about 10 to the 16th/sq cm were measured. Column density lower limits of about 10 to the 14th/sq cm for H2S were found for other sources, where only the main isotopic line was observed. The fractional abundances of H2S relative to molecular hydrogen appear to be enhanced by at least an order of magnitude relative to quiescent cloud values (about 10 to the -9th) for many of the observed sources. 28 refs
Additional details
Publishing Information
- Journal Title
- Astrophysical Journal
- Journal Volume
- 366
- Series
- Astrophys. J.
- Journal Page Range
- 192-197
- ISSN
- 0004-637X
- CODEN
- ASJOA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 22040388
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- CHEMICAL COMPOSITION; COSMIC GASES; COSMOCHEMISTRY; DENSITY; ELEMENT ABUNDANCE; HYDROGEN SULFIDES; H2 REGIONS; INFRARED RADIATION; INTERSTELLAR SPACE; LIMITING VALUES; MASERS; MILKY WAY; MOLECULES; NEBULAE; STAR EVOLUTION; WATER
- Descriptors DEC
- AMPLIFIERS; CHALCOGENIDES; CHEMISTRY; COSMIC RADIO SOURCES; ELECTROMAGNETIC RADIATION; ELECTRONIC EQUIPMENT; EQUIPMENT; FLUIDS; GALAXIES; GASES; HYDROGEN COMPOUNDS; MICROWAVE AMPLIFIERS; MICROWAVE EQUIPMENT; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; QUANTITY RATIO; RADIATIONS; SPACE; SULFIDES; SULFUR COMPOUNDS