2002/12/06 by Jeong‐Eun Lee, Jeong-Eun Lee, Neal J. Evans II +8
Materials Science · Physics and Astronomy · #Advanced Chemical Physics Studies #Astrophysics (astro-ph) #Astrophysics and Star Formation Studies #Catalytic Processes in Materials Science #FOS: Physical sciences #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/0212178
3 pages, to appear in the proceedings of the conference, "Star Formation as a Diagnostic of Star Formation"
arxiv created 2002/12/06 · openalex publication_date 2002/12/06 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We have compared the intensity distribution of molecular line emission with that of dust continuum emission, and modeled molecular line profiles in three different preprotostellar cores in order to test how dynamical evolution is related to chemical evolution, and whether we can use different chemical tracers to identify specific dynamical evolutionary stages. We used dust continuum emission to obtain the input density and temperature structures by calculating radiative transfer of dust emission. Our results show that chemical evolution is dependent on dynamical processes, which can give different evolutionary timescales, as well as the density structure of the core.