A dataset provided by the European Space Agency

Name OT1_pschilke_2
Title High-J lines of HCN as tracer of feedback processes in high-mass star formation
URL

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DOI 10.5270/esa-7gfixx0
Author schilke, p.
Description The mechanisms involved in the formation of massive stars, and particularly the process of feedback from already-formed stars, are not well understood. Recent models of star formation have started to investigate the role of mechanic (outflows) and radiative feedback, but observational evidence for these processes altering the star formation process has been lacking. In an analysis of the HEXOS data, we have found that high-J HCN lines are perfectly suited to study this phenomenon: in SgrB2(M), they show a reversal of the infall profile at high J, indicating that in the inner regions the onset of feedback is halting the inflow, and the gas is actually expanding again. In this proposal, we want to apply this powerful technique to a sample of high-mass star-forming cores at similar stages of development as SgrB2(M).
Publication
Instrument HIFI_HifiFS_freq
Temporal Coverage 2011-08-13T12:18:35Z/2012-10-12T13:02:18Z
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 2013-04-12T12:25:05Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2013-04-12T12:25:05Z, OT1_pschilke_2, SPG v14.1.0. https://doi.org/10.5270/esa-7gfixx0