Title: Chemical differentiation between star-forming regions - The Orion Hot Core and Compact Ridge
Abstract: view Abstract Citations (257) References (41) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Chemical Differentiation between Star-forming Regions: The Orion Hot Core and Compact Ridge Caselli, P. ; Hasegawa, T. I. ; Herbst, Eric Abstract A dynamical-chemical model of mass star-forming regions, in which gas and dust grains are included, is presented. Consideration is given to the last 100,000 yr of the accretion phase of a protostellar object embedded in a dense and massive cloud with a density and temperature gradient. The gas and grain chemical evolution of two collapsing shells of this cloud is traced, until the end of the protostar accretion phase, at which time the density no longer increases. It is found that differences in thermal history during the gravitational collapse of the two circumstellar shells can lead to chemical differentiation between the Orion Hot Core and Compact Ridge. Detailed comparison between the present model results and observations of these two sources exhibits a mixed pattern of agreement and disagreement. Publication: The Astrophysical Journal Pub Date: May 1993 DOI: 10.1086/172612 Bibcode: 1993ApJ...408..548C Keywords: Chemical Evolution; Interstellar Gas; Interstellar Matter; Molecular Clouds; Pre-Main Sequence Stars; Star Formation; Abundance; Cosmic Dust; Gravitational Collapse; Shell Stars; Stellar Mass Accretion; Astrophysics; ISM: ABUNDANCES; ISM: MOLECULES; MOLECULAR PROCESSES; STARS: FORMATION; STARS: PRE--MAIN-SEQUENCE full text sources ADS | data products SIMBAD (4)
Publication Year: 1993
Publication Date: 1993-05-01
Language: en
Type: article
Indexed In: ['crossref']
Access and Citation
Cited By Count: 241
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot