A dataset provided by the European Space Agency

Name OT1_mrllig_1
Title Hot CO in the Massive Star Forming Region DR21
URL

http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342245386&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=1342255773&instrument_name=HIFI&product_level=LEVEL0&compress=true
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DOI 10.5270/esa-flrcvmo
Author rollig, m.
Description We plan to resolve the detailed physical and dynamical structure of the massive star forming (SF) region DR21~C which has a prominent bipolar outflow visible in 2 micron emission of vibrationally excited H2, tracing hot, shocked gas. While, the shock is hardly affecting most of the molecular line emission of the region (Lane et al. 1990, Ossenkopf et al. 2010), only [CII] is showing an additional broad blue wing indicating that the [CII] emission is not only originating from that warm gas, but also from the ionized wind in the blister outflow. H2 and CO are at least partly co-existent and hence should show similar signs of shocks, but surprisingly 13CO(10-9) doesn.t, so many question remains: - Is there any CO that is directly affected by the shock and if so, at at which AV does the shock excitation stop? - Why does CO up to 10-9 show no direct signature of shock heating or outflowing material? - Does the shock only affect H_2 and ionized material? - Which volume of the source is affected-heated by the shock? - Which volume of the source is heated by the UV radiation from the cluster? The aim of this proposal is to understand how shock-outflow and UV radiation from the embedded OB cluster contribute to the excitation of the surrounding material and where exactly the transition from shocked to unshocked material occurs.
Publication
Instrument HIFI_HifiMapping_raster, HIFI_HifiPoint_dbs, HIFI_HifiMapping_fly
Temporal Coverage 2012-05-04T19:39:03Z/2013-01-16T05:44:31Z
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 ┬Ám range, bridging the gap between earlier infrared space missions and groundbased facilities.
Creator Contact https://support.cosmos.esa.int/herschel/
Date Published 2013-07-16T05:36:07Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2013-07-16T05:36:07Z, OT1_mrllig_1, SPG v14.1.0. https://doi.org/10.5270/esa-flrcvmo