| Name | OT2_hbeuther_4 |
| Title | Formation signatures and carbon budget of molecular clouds |
| URL | http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342270620&instrument_name=HIFI&product_level=LEVEL0&compress=true |
| DOI | https://doi.org/10.5270/esa-af0hgr7 |
| Author | beuther, h. |
| Description | The interstellar medium (ISM) is mainly comprised of ionized, neutralatomic and molecular gas. One of the most important constituents ofthese phases is carbon in its ionized/neutral/molecular form (C^+, C^0and CO). However, a coherent analysis of the different phases atadequate resolution (Jeans length virgul0.2pc) is lacking. We thereforewant to re-evaluate the ISM carbon budget via observing primarily C^+at 1.9THz, C^0 (at 492GHz), and CO(2-1) with Herschel, APEX and theIRAM 30m at high spatial resolution (11.-13.) for several infrareddark clouds (IRDCs). This proposal is a follow-up of a guaranteedtime pilot study for the line of ionized carbon CII toward oneIRDC. In this open time project we like to extend the sample to atotal of five IRDCs in different environments. With the combined dataof the different carbon phases we can address: (a) How do the relativeabundances change with evolutionary stage? (b) Are the differentphases mainly excited by internal or external radiation sources? (c)How important are the phase changes for the carbon cooling budget ofthe ISM? (d) Can we identify cloud formation signatures (e.g.,turbulent flows)? |
| Publication |
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| Instrument | HIFI_HifiMapping_load-raster |
| Temporal Coverage | 2013-04-18T18:36:07Z/2013-04-19T09:59:04Z |
| Version | SPG v14.1.0 |
| Mission Description | Herschel was launched on 14 May 2009! It is the fourth cornerstone mission in the ESA science programme. With a 3.5 m Cassegrain telescope it is the largest space telescope ever launched. It is performing photometry and spectroscopy in approximately the 55-671 µm range, bridging the gap between earlier infrared space missions and groundbased facilities. |
| Creator Contact | https://support.cosmos.esa.int/h®erschel/ |
| Date Published | 2013-10-19T07:40:30Z |
| Keywords | Herschel, HSC, submillimetre, far-infrared, HIFI, PACS, SPIRE |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, beuther et al., 2013, 'Formation signatures and carbon budget of molecular clouds', SPG v14.1.0, European Space Agency, https://doi.org/10.5270/esa-af0hgr7 |