Extended emission in three luminous hot cores

Details Extended emission in three luminous hot cores Extended emission in three luminous hot cores

Oct 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007atnf.prop.1175h&link_type=abstract

ATNF proposal M269, Semester: October, 2007

Computer Science

Galactic, Mopra

Scientific paper

When studying the formation of massive stars, it is not only important to know about the innermost densest and hottest regions, but also about the molecular environment of the clouds in which the hot cores are located. We recently observed three hot cores with the ATCA in 3mm continuum and H13CN(1-0) line emission, but our APEX H13CN(4-3) maps let us expect that we probably missed extended emission even with the more compact ATCA configuration. Since our previous 3mm observation with the ATCA were insensitive to larger structures, we now request zero spacings from MOPRA to study extended emission in the high mass star forming regions 12326-6245, 16060-5146 and 16065-5158. A particular problem for our analysis of the ATCA data without additional zero spacings poses 16060-5146, where we see H13CN(1-0) in absorption against two cores, which could either be real or the result of the missing zero spacings. Therefore we propose to map a 4 arcminute region around each source with the MOPS spectrometer in narrowband mode. This work is part of C. Hieret's PhD thesis.

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