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The Spectral Energy Distribution of the Earliest Phases of Massive Star Formation

Published online by Cambridge University Press:  31 March 2017

Randolf Klein ,
Jennifer Cooper ,
Leslie Looney ,
Thomas Henning ,
Sukanya Chakrabarti  and
Sachin Shenoy
Randolf Klein
Affiliation:
SOFIA-USRA, NASA Ames Research Center, MS 232-12, PO box 1, Moffet Field, CA 94035 email: [email protected]
Jennifer Cooper
Affiliation:
SOFIA-USRA, NASA Ames Research Center, MS 232-12, PO box 1, Moffet Field, CA 94035 email: [email protected]
Leslie Looney
Affiliation:
University of Illinois, Dept. of Astronomy, MC-221, 1002 W. Green St., Urbana, IL 61801
Thomas Henning
Affiliation:
Max-Planck-Institut für Astronomie Königstuhl 17, D-69117 Heidelberg
Sukanya Chakrabarti
Affiliation:
School of Physics and Astronomy, Rochester Institute of Technology 84 Lomb Memorial Dr., Rochester, NY 14623
Sachin Shenoy
Affiliation:
SOFIA-USRA, NASA Ames Research Center, MS 232-12, PO box 1, Moffet Field, CA 94035 email: [email protected]
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Abstract

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We have selected cold and massive (M > 100M⊙) cores as candidates for early phases of star formation from millimeter continuum surveys without associations at short wavelengths. We compared the millimeter continuum peak positions with IR and radio catalogs and excluded cores that had sources associated with the cores’ peaks. We compiled a list of 173 cores in over 117 regions that are candidates for very early phases of Massive Star Formation (MSF). Now with the Spitzer and Herschel archives, these cores can be characterized further. We are compiling this data set to construct the complete spectral energy distribution (SED) in the mid- and far-infrared with good spatial resolution and broad spectral coverage. This allow us to disentangle the complex regions and model the SED of the deeply embedded protostars/clusters. We present a status report of our efforts: a preview of the IR properties of all cores and their embedded source inferred from a grey body fit to the compiled SEDs.

Keywords

stars: formationinfrared: ISMISM: clouds
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S316: Formation, evolution, and survival of massive star clusters , August 2015 , pp. 151 - 152
Copyright
Copyright © International Astronomical Union 2017 

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