| Name | OT2_tvelusam_3 |
| Title | Atomic and Ionic Spectral Line Probes of Protostellar Jets and Outflows |
| URL | http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342269940&instrument_name=PACS&product_level=LEVEL0&compress=true |
| DOI | https://doi.org/10.5270/esa-uexs3as |
| Author | velusamy, t. |
| Description | We propose to resolve the origin of the strong OI 63micron and CII 158 micron emissions, within protostellar jet-outflow sources, detected by ISO LWS, and use it as a diagnostic of the shock conditions. Both CII and OI emission are useful diagnostics of the postshock gas, and OI is an efficient coolant in the high velocity dissociative shocks. Though CII is less important as a coolant in the shocks, its high intensities make it an ideal probe for Herschel because of HIFIs high spatial and velocity resolution which can answer where, within a jet and wind driven environment filled with shocks and outflow cavities, such strong emissions originate. In this proposal we use the PACS and HIFI spectral line mapping of shocks in 4 representative jet/outflow sources to study their spatial and velocity structures and their association with the jets and outflows, and the entrained regions. All these jet outflow targets have strong OI and CII detections by ISO LWS and contain atomic and ionic and molecular hydrogen jets; two were selected for the presence of wide angle outflow cavities; and two were selected for their star-forming and external FUV environments. These observations will characterize the components of the OI and CII associated with the shocks and outflows and serves as templates for understanding the ISO detections in a larger sample and using them as probes in future. |
| Publication |
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| Instrument | HIFI_HifiMapping_load-raster, PACS_PacsLineSpec_large |
| Temporal Coverage | 2013-04-12T18:35:53Z/2013-04-18T14:00:09Z |
| 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 | 2013-10-18T10:47:42Z |
| Keywords | Herschel, HSC, submillimetre, far-infrared, HIFI, PACS, SPIRE |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, velusamy et al., 2013, 'Atomic and Ionic Spectral Line Probes of Protostellar Jets and Outflows', SPG v14.2.0, European Space Agency, https://doi.org/10.5270/esa-uexs3as |