| Name | OT2_cchen01_3 |
| Title | A Search for C II Around Dusty, A-Type Stars |
| URL | http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342254771&instrument_name=PACS&product_level=LEVEL0&compress=true |
| DOI | https://doi.org/10.5270/esa-ffm4xqy |
| Author | chen, c. |
| Description | We propose to obtain PACS C II 157.7 micon line spectra of 10 bright debris disks around dusty, A-type stars (with 70 micron fluxes >0.4 Jy) that are expected to be gas-rich if circumstellar gas in debris disks is generated via collisinal vaporization and/or photo desorption. C II is expected to be the dominant cooling line in debris disks. The high luminosity and UV flux of A-type stars is expected to efficiently produce second-generation gas. We plan to (1) constrain directly the gas:dust ratio in debris disks, (2) test models for the production of second-generation gas from circumstellar dust, and (3) extrapolate the composition of undetected parent bodies. Since the C II line emission from debris disks is relatively faint, PACS is required to conduct these observations |
| Publication | |
| Instrument | PACS_PacsLineSpec_point |
| Temporal Coverage | 2012-11-09T10:07:57Z/2013-03-18T12:25:38Z |
| Version | SPG v14.2.0 |
| 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 | 2013-09-18T09:21:07Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, chen, c., 2013, OT2_cchen01_3, SPG v14.2.0, European Space Agency, https://doi.org/10.5270/esa-ffm4xqy |