A dataset provided by the European Space Agency

Name DDT_ldecin_2
Title Unraveling the enigmatic nature of the turbulent interaction zone between the circumstellar and interstellar medium around the well-known supergiant Beteleuse
URL

http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342214869&instrument_name=PACS&product_level=LEVEL0&compress=true
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http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342214871&instrument_name=PACS&product_level=LEVEL0&compress=true
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http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342214908&instrument_name=HIFI&product_level=LEVEL0&compress=true
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http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342216361&instrument_name=HIFI&product_level=LEVEL0&compress=true
http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342216361&instrument_name=PACS&product_level=LEVEL0&compress=true

DOI 10.5270/esa-193qaf8
Author decin, l.
Description Evolved stars are the birthplaces of the interstellar gas and solid dust particles. Such stars lose mass through a stellar wind, which is slow and dusty for cool giants and supergiants, or through impressive supernova explo- sions. However, recent observations with the PACS and SPIRE photometers reveal that the encounter between these slow and dusty winds and the interstellar medium is as spectacular as supernova explosions: multiple arcs, bar-like structures and different kind of instabilities (Rayleigh-Taylor and Kelvin-Helmholtz) are detected. The most outstanding example concerns the well-known supergiant Betelgeuse. However, with the current set of Herschel observations, it is impossible to dene the exact physical mechanism causing the observed infrared emission. We propose to obtain PACS [O I] and HIFI [C II] spectroscopic observations at different pointings in the turbulent wind interaction zone around Betelgeuse. The proposed DDT observations would only take 3.1 hr and would give the astronomical community the rst possibility to study spectroscopically the different dynam- ical and chemical processes partaking in the interaction zone between circumstellar and interstellar material. The derived spectroscopic information will be valuable to the whole community in preparation of OT2.
Publication
Instrument HIFI_HifiPoint_dbs, PACS_PacsLineSpec_point
Temporal Coverage 2011-02-28T18:49:34Z/2011-03-18T17:25:48Z
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 2011-03-18T16:28:14Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2011-03-18T16:28:14Z, DDT_ldecin_2, SPG v14.2.0. https://doi.org/10.5270/esa-193qaf8