A dataset provided by the European Space Agency

Name OT2_cchen01_3
Title A Search for C II Around Dusty, A-Type Stars


DOI 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
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 ┬Ám range, bridging the gap between earlier infrared space missions and groundbased facilities.
Creator Contact https://support.cosmos.esa.int/herschel/
Date Published 2013-09-18T09:21:07Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2013-09-18T09:21:07Z, OT2_cchen01_3, SPG v14.2.0. https://doi.org/10.5270/esa-ffm4xqy