| Name | OT2_ylibert_2 |
| Title | CI and CII in the circumstellar environment of the carbon-rich AGB star Y CVn |
| URL | http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342256276&instrument_name=HIFI&product_level=LEVEL0&compress=true |
| DOI | https://doi.org/10.5270/esa-l4jiui4 |
| Author | libert, y. |
| Description | We propose to map the extended circumstellar environment of the carbon starY CVn in the sub-mm lines of CI and CII. The high spectral resolution of HIFIwill allow us to analyze in detail the line profiles and to separate the12C from the 13C emissions. The comparison with the data obtainedwith the VLA in the HI line at 21 cm will allow us to disentangle the thermalbroadening from the kinematic broadening. We will thus get access to thetemperature profile in the circumstellar envelope and be able to constrainthe cooling of circumstellar matter. The data will also provide the 12C/13C ratio and the carbon ionization state as a function of distance to the central star. |
| Publication | |
| Instrument | HIFI_HifiPoint_pos, HIFI_HifiMapping_fs-raster, HIFI_HifiMapping_fly |
| Temporal Coverage | 2012-11-30T05:08:23Z/2012-12-22T11:38:35Z |
| 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 | 2013-06-22T07:00:46Z |
| Keywords | Herschel, HSC, submillimetre, far-infrared, HIFI, PACS, SPIRE |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, libert et al., 2013, 'CI and CII in the circumstellar environment of the carbon-rich AGB star Y CVn', SPG v14.1.0, European Space Agency, https://doi.org/10.5270/esa-l4jiui4 |