A dataset provided by the European Space Agency

Name OT2_mcordine_3
Title Determining the evolutionary state of the young protostar Chamaeleon MMS1


DOI 10.5270/esa-vopkx8o
Author cordiner, m.
Description This proposal aims to determine the physical structure and evolutionary status of the relatively little-studied young protostar Chamaeleon MMS1. The central source has an unusually low luminosity and is embedded in an extremely chemically-rich parent cloud. It has been put forward as an example of a first hydrostatic core, but there is some disagreement in the literature as to whether or not it drives an outflow, and it may be undergoing episodic mass-accretion. Our proposed HIFI and PACS observations of CO and H2O rotational emission lines with a range of upper-state energies will probe the density and temperature structure of the envelope and, through radiative transfer-excitation analysis, will provide crucial information on the physical state of this object. Line profiles will be used as a probe of the envelope and outflow kinematics. OI 63 micron line mapping will provide information on the envelope energetics and will test for the presence of a hidden jet. SED measurements will help to characterise the central radiation source, disk and envelope. These combined observations are expected to improve our understanding of the earliest stages of protostar evolution.
Instrument HIFI_HifiPoint_load, HIFI_HifiPoint_pos
Temporal Coverage 2012-09-28T15:14:54Z/2012-10-02T22:41:02Z
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 2013-04-02T22:30:49Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2013-04-02T22:30:49Z, OT2_mcordine_3, SPG v14.1.0. https://doi.org/10.5270/esa-vopkx8o