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Protostellar chemistry dominated by external irradiation

Part of: IAU Issue 315 - From Interstellar Clouds...

Published online by Cambridge University Press:  12 September 2016

Johan E. Lindberg ,
Steven B. Charnley ,
Jes K. Jørgensen ,
Yoshimasa Watanabe ,
Suzanne E. Bisschop ,
Nami Sakai  and
Satoshi Yamamoto
Johan E. Lindberg
Affiliation:
NASA Goddard Space Flight Center, Astrochemistry Laboratory, Mail Code 691, 8800 Greenbelt Road, Greenbelt, MD 20771, USA email: [email protected]
Steven B. Charnley
Affiliation:
NASA Goddard Space Flight Center, Astrochemistry Laboratory, Mail Code 691, 8800 Greenbelt Road, Greenbelt, MD 20771, USA email: [email protected]
Jes K. Jørgensen
Affiliation:
Centre for Star and Planet Formation, Niels Bohr Institute and Natural History Museum of Denmark, University of Copenhagen, Øster Voldgade 5-7, DK-1350 Copenhagen K, Denmark
Yoshimasa Watanabe
Affiliation:
Department of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
Suzanne E. Bisschop
Affiliation:
Centre for Star and Planet Formation, Niels Bohr Institute and Natural History Museum of Denmark, University of Copenhagen, Øster Voldgade 5-7, DK-1350 Copenhagen K, Denmark
Nami Sakai
Affiliation:
Department of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
Satoshi Yamamoto
Affiliation:
Department of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
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Abstract

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Submillimetre observations of externally irradiated low-mass protostellar envelopes show that the gas temperature in the envelopes is dominated by the external irradiation. Detailed studies of the protostar IRS7B in Corona Australis also show that the chemistry is strongly affected by the irradiation, depleting the abundances of complex organic molecules.

Keywords

stars: formationISM: moleculesastrochemistryradiative transfer
Type
Poster Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , Symposium S315: From Interstellar Clouds to Star-Forming Galaxies: Universal Processes? , August 2015 , E51
Copyright
Copyright © International Astronomical Union 2016 

References

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