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Cambridge University Press (CUP), Proceedings of the International Astronomical Union, S287(8), p. 497-501, 2012

DOI: 10.1017/s1743921312007594

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Early results from a diagnostic 1.3 cm survey of massive young protostars

Journal article published in 2012 by Crystal L. Brogan, Todd R. Hunter ORCID, Claudia J. Cyganowski, Remy Indebetouw, Rachel Friesen, Claire Chandler
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

AbstractWe have used the recently-upgraded Karl G. Jansky Very Large Array (JVLA) to conduct a K-band (~24 GHz) study of 22 massive young stellar objects in 1.3 cm continuum and a comprehensive set of diagnostic lines. This survey is unique in that it samples a wide range of massive star formation signposts simultaneously for the first time. In this proceeding we present preliminary results for the 11 sources in the 2-4 kpc distance bin. We detect compact NH3 cores in all of the fields, with many showing emission up through the (6,6) transition. Maser emission in the 25 GHz CH3OH ladder is present in 7 of 11 sources. We also detect non-thermal emission in the NH3 (3,3) transition in 7 of 11 sources.

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