Observations of the H2S toward OMC-1

Journal Article · Sat Sep 01 04:00:00 EDT 1990 · Astrophysical Journal; (USA)

DOI:https://doi.org/10.1086/169103· OSTI ID:6481046

Minh, Y C; Irvine, W M; Mcgonagle, D; Ziurys, L M ^[1]

---

1. Massachusetts Univ., Amherst (USA) Arizona State Univ., Tempe (USA)

Observations of the 1(10) - 1(01) transition of interstellar H{sub 2}S and its isotopes toward OMC-1 are reported. The fractional abundance of H{sub 2}S in the quiescent regions of OMC-1 seems difficult to explain by currently known ion-molecular reactions. The fractional abundance of H{sub 2}S relative to H{sub 2} is enhanced by a factor of 1000 in the hot core and the plateau relative to the quiescent clouds. The (HDS)/(H{sub 2}S) abundance ratio in the hot core is estimated at 0.02 or less. 38 refs.

• OSTI ID: 6481046
• Journal Information: Astrophysical Journal; (USA), Journal Name: Astrophysical Journal; (USA) Vol. 360; ISSN ASJOA; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABUNDANCE
BRIGHTNESS
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMISTRY
COSMIC GASES
COSMOCHEMISTRY
DEUTERIUM
ELEMENT ABUNDANCE
FLUIDS
GASES
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
HYDROGEN SULFIDES
INTERSTELLAR SPACE
ISOTOPES
LIGHT NUCLEI
MOLECULES
NEBULAE
NUCLEI
ODD-ODD NUCLEI
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
SPACE
STABLE ISOTOPES
SULFIDES
SULFUR COMPOUNDS
SULFUR ISOTOPES