| Name | OT1_cgielen_2 |
| Title | Dust processing and grain growht in Keplerian discs around binary post-AGB stars. |
| URL | http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342219612&instrument_name=SPIRE&product_level=LEVEL0&compress=true |
| DOI | https://doi.org/10.5270/esa-zy3hf57 |
| Author | gielen, c. |
| Description | We propose to use the Herschel-PACS/SPIRE instruments to study the far-infrared continuum emission ofa sample of evolved stars, both in the Galaxy and the Large Magellanic Cloud (LMC). All these stars areproven or suspected binaries surrounded by a long-lived circumbinary disc. Our analysis of the SPITZER mid-infraredspectra of these stars showed that grain processing is very effcient in these discs, despite the very shortevolutionary timescale of the post-AGB central star. Extending the spectral energy distribution (SED) to far-infraredwavelengths is an essential complement in constraining the disc characteristics. The long-wavelength flux is very sensitive to the amount of large grains, and thus the total dust mass, and grain-size distributionwithin the disc. The ultimate goal of our research is to study the structure, formation and evolution of the verycommon discs around evolved binary stars, and constrain their impact on the evolution of the binary systems. |
| Publication | |
| Instrument | SPIRE_SpirePhoto_small |
| Temporal Coverage | 2011-04-26T22:29:35Z/2011-11-30T16:02:49Z |
| 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 | 2012-05-30T15:50:48Z |
| Keywords | Herschel, HSC, submillimetre, far-infrared, HIFI, PACS, SPIRE |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, gielen et al., 2012, 'Dust processing and grain growht in Keplerian discs around binary post-AGB stars.', SPG v14.1.0, European Space Agency, https://doi.org/10.5270/esa-zy3hf57 |