A dataset provided by the European Space Agency

Name GT2_proyer_3
Title Unveiling the evolutionary paths of the most massive stars through the study of their ejected nebulae
URL

http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342235692&instrument_name=PACS&product_level=LEVEL0&compress=true
http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342235693&instrument_name=PACS&product_level=LEVEL0&compress=true
http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342247817&instrument_name=PACS&product_level=LEVEL0&compress=true
http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342247818&instrument_name=PACS&product_level=LEVEL0&compress=true
http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342252090&instrument_name=PACS&product_level=LEVEL0&compress=true
http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342252091&instrument_name=PACS&product_level=LEVEL0&compress=true
http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342252092&instrument_name=PACS&product_level=LEVEL0&compress=true
http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342252093&instrument_name=PACS&product_level=LEVEL0&compress=true

DOI https://doi.org/10.5270/esa-j66byuz
Author royer, p.
Description Several important questions remain open regarding the latest
stages of evolution of the most massive stars, in particular
regarding the exact evolutionary paths between the various
subtypes of O stars, LBVs and Wolf-Rayet stars, and the
mass-loss history of these objects throughout their lives.

In the framework of the MESS GTKP+GT1, we have obtained
or will obtain PACS imaging of 9 massive star nebulae of
various types (LBV, LBV candidate, OF/WN, Of?p, WR) and PACS
spectroscopy of 4 of them. In this short follow-up proposal we
want to obtain PACS line spectroscopy for 3 peculiar massive
and evolved objects for which spectroscopy is lacking.
In particular, these observations will allow to determine the
elemental abundances in the nebulae as well as the mass of the
neutral gas using the fine structure lines formed in the ionized
gas and in the photo-dissociation region respectively.
Publication
Instrument PACS_PacsLineSpec_point
Temporal Coverage 2011-12-28T09:45:07Z/2012-10-02T15:58:29Z
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 2013-04-02T15:35:17Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, royer, p., 2013, GT2_proyer_3, SPG v14.2.0, European Space Agency, https://doi.org/10.5270/esa-j66byuz