| Name | OT2_phofner_1 |
| Title | Probing Outflows from Massive Proto-stars with High-J CO Lines |
| URL | http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342268482&instrument_name=HIFI&product_level=LEVEL0&compress=true |
| DOI | https://doi.org/10.5270/esa-44wkgvj |
| Author | hofner, p. |
| Description | Massive star formation remains one of the major challengesof modern astrophysics. One key ingredient which is stillpoorly understood are the massive outflows whichare observed near 100 % detection rate toward massiveprotostars. The CO molecule is in principle the bestprobe of the flows, however most work has been donewith low-J transitions which can only probe the outerswept-up layers of the flows. High-J CO transitions on theother hand probe the warm gas very near the massiveprotostars and are ideal probes of the physics and role of theflows in the formation of massive stars.We propose to obtain observations in the CO(10-9) and13CO(10-9), C18O(10-9) and the CO(16-15) lines toward a sample of 4 massive protostars which drive massive flows.We will join these data with existing lower and mid-J CO data,EVLA continuum and SPITZER/IRAC data. We will carry outradiative transfer calculations of the CO lines to determinetheir physical properties as function of velocity. All datatogether will be used to investigate the driving andcollimation mechanisms and and to develop coherent modelsfor the massive flows. |
| Publication | |
| Instrument | HIFI_HifiPoint_dbs |
| Temporal Coverage | 2013-03-27T06:27:09Z/2013-04-19T14:15:39Z |
| 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 | 2013-10-19T13:57:27Z |
| Keywords | Herschel, HSC, submillimetre, far-infrared, HIFI, PACS, SPIRE |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, hofner et al., 2013, 'Probing Outflows from Massive Proto-stars with High-J CO Lines', SPG v14.1.0, European Space Agency, https://doi.org/10.5270/esa-44wkgvj |