A dataset provided by the European Space Agency

Name OT2_cgielen_3
Title Dust and gas in Keplerian discs around binary post-AGB stars.
URL

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DOI 10.5270/esa-hyh0vh6
Author gielen, c.
Description We propose to use the Herschel-PACS-SPIRE instruments to study the far-infrared spectral properties of a sample of bright evolved binary stars. All these stars are surrounded by a dusty circumbinary disc in a stable Keplerian orbit. Mid-infrared spectroscopic studies show that these discs are the ideal environment for strong dust processing, in the form of grain growth and crystallinisation. Detailed disc modelling shows that the discs are not only very dusty, but also that a non-negligible gas component must be present, to allow for the observed disc geometry. The spectroscopic capabilities of Herschel will allow to extend the spectroscopic information to the far-infrared, allowing the detection of previously unexplored or unexpected dust and gas features. This will provide invaluable information on the dust processing in the disc, and the relatively unstudied gas component.
Publication THROES: a caTalogue of HeRschel Observations of Evolved Stars. I. PACS range spectroscopy . Ramos-Medina J. et al. . Astronomy & Astrophysics, Volume 611, id.A41, 38 pp. . 611 . 10.1051\/0004-6361\/201731940 . 2018A&A...611A..41R ,
Instrument SPIRE_SpireSpectrometer_, PACS_PacsRangeSpec_point
Temporal Coverage 2012-05-02T07:29:06Z/2012-12-04T10:01:15Z
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 2013-06-04T08:46:25Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2013-06-04T08:46:25Z, OT2_cgielen_3, SPG v14.2.0. https://doi.org/10.5270/esa-hyh0vh6