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MASSES: An SMA Large Project Surveying Protostars to Reveal How Stars Gain their Mass

Published online by Cambridge University Press:  13 January 2020

Ian W. Stephens Open the ORCID record for Ian W. Stephens [Opens in a new window] ,
Michael M. Dunham ,
Philip C. Myers ,
Riwaj Pokhrel ,
Tyler L. Bourke  and
the MASSES team
Ian W. Stephens
Affiliation:
Harvard-Smithsonian Center for Astrophysics 60 Garden Street, Cambridge, MA, USA e-mail: ian.stephens@cfa.harvard.edu
Michael M. Dunham
Affiliation:
Harvard-Smithsonian Center for Astrophysics 60 Garden Street, Cambridge, MA, USA e-mail: ian.stephens@cfa.harvard.edu Department of Physics, State University of New Yorkat Fredonia 280 Central Avenue, Fredonia, NY 14063, USA email: michael.dunham@fredonia.edu
Philip C. Myers
Affiliation:
Harvard-Smithsonian Center for Astrophysics 60 Garden Street, Cambridge, MA, USA e-mail: ian.stephens@cfa.harvard.edu
Riwaj Pokhrel
Affiliation:
Harvard-Smithsonian Center for Astrophysics 60 Garden Street, Cambridge, MA, USA e-mail: ian.stephens@cfa.harvard.edu Department of Astronomy, University of Massachusetts, Amherst, MA 01003, USA
Tyler L. Bourke
Affiliation:
SKA Organization, Jodrell Bank Lower Withington, Macclesfield, Cheshire SK11 9FT, UK
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Abstract

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Low-mass stars form from the gravitational collapse of dense molecular cloud cores. While a general consensus picture of this collapse process has emerged, many details on how mass is transferred from cores to stars remain poorly understood. MASSES (Mass Assembly of Stellar Systems and their Evolution with the SMA), an SMA large project, has just finished surveying all 74 Class 0 and Class I protostars in the nearby Perseus molecular cloud to reveal the interplay between fragmentation, angular momentum, and outflows in regulating accretion and setting the final masses of stars. Scientific highlights are presented in this proceedings, covering the topics of episodic accretion, hierarchical thermal Jeans fragmentation, angular momentum transfer, envelope grain sizes, and disk evolution.

Keywords

stars: formationsurveysISM: jets and outflowsISM: cloudsISM: kinematics and dynamicsISM: moleculesaccretionastrochemistry
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 14 , Symposium S345: Origins: From the Protosun to the First Steps of Life , August 2018 , pp. 66 - 69
Copyright
© International Astronomical Union 2020 

References

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