| 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 |
| DOI | https://doi.org/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) doesnt, 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 µm range, bridging the gap between earlier infrared space missions and groundbased facilities. |
| Creator Contact | https://support.cosmos.esa.int/h®erschel/ |
| Date Published | 2013-07-16T05:36:07Z |
| Last Update | 2026-03-02 |
| Keywords | Herschel Space Observatory data, ESA Herschel mission dataset, far-infrared astronomy observations, submillimeter astronomy data, infrared space telescope observations, PACS photometer data, PACS spectrometer data, SPIRE photometer data, SPIRE Fourier transform spectrometer data, HIFI heterodyne spectroscopy data, far-infrared spectroscopy dataset, submillimeter spectral line observations, cold universe observations dataset, star formation infrared data, molecular cloud far-infrared observations, interstellar medium spectroscopy data, protoplanetary disk infrared observations, galaxy evolution far-infrared data, dust emission submillimeter observations, cosmic infrared background measurements, extragalactic infrared survey data, calibrated level 2 data products, FITS files astronomy, spectral cubes far-infrared, flux-calibrated maps, continuum photometry data, spectral energy distribution measurements, ESA Herschel Science Archive data |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, rollig et al., 2013, 'Hot CO in the Massive Star Forming Region DR21', SPG v14.1.0, European Space Agency, https://doi.org/10.5270/esa-flrcvmo |