Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/29252
Title: | Mapping the large scale CO-depletion in the IRDC G351.77-0.51 | Authors: | Sabatini, G. GIANNETTI, ANDREA Bovino, S. BRAND, JAN Leurini, Silvia SCHISANO, EUGENIO Pillai, T. Menten, K. M. |
Issue Date: | 2019 | Journal: | MEMORIE DELLA SOCIETA ASTRONOMICA ITALIANA | Volume: | New quests in stellar astrophysics IV astrochemistry, astrobiology and the origin of life | Editors: | Chávez Dagostino, M.; Bertone, E.; Vega, O.; Chávez Dagostino, R.M. | Number: | 90 | First Page: | 497 | Abstract: | Knowledge of the degree of CO-depletion provides information on the physical conditions occurring in the innermost and the densest regions of molecular clouds. A key parameter is the radius within which the CO is depleted (R_dep). We present a study of the depletion of CO in the Infrared Dark Cloud G351.77-0.51 (G351), to derive the depletion across the cloud. We use the Herschel (Hi-Gal) and LABOCA dust continuum data, combined with APEX C18O and C17O(2-1) line observations. We built a simple model to investigate the size of the CO-depleted region in G351. The model suggests that R_dep < 0.15 pc, where we estimate a hydrogen number density > 2× 10^4 cm^-3. These results provide crucial information on the spatial scales on which different chemical processes can operate in high-mass star forming regions. | Conference Name: | New quests in stellar astrophysics IV. Astrochemistry, astrobiology and the origin of life | Conference Place: | Puerto Vallarta, Mexico | Conference Date: | 31 marzo -5 aprile, 2019 | URI: | http://hdl.handle.net/20.500.12386/29252 | URL: | http://sait.oat.ts.astro.it/MSAIt900419/index.html | ISSN: | 0037-8720 | Bibcode ADS: | 2019MmSAI..90..497S | Fulltext: | open |
Appears in Collections: | 3.01 Contributi in Atti di convegno |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Sabatini-MemSAIt90.pdf | Pdf editoriale | 721.69 kB | Adobe PDF | View/Open |
Page view(s)
63
checked on Apr 26, 2024
Download(s)
19
checked on Apr 26, 2024
Google ScholarTM
Check
Items in DSpace are published in Open Access, unless otherwise indicated.