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Analysis of the Herschel/HEXOS Spectral Survey Towards Orion South: A massive protostellar envelope with strong external irradiation
K. Tahani, R. Plume, E. A. Bergin +14
We present results from a comprehensive submillimeter spectral survey toward the source Orion South, based on data obtained with the HIFI instrument aboard the \textit{Herschel Spa…
Herschel observations of Extra-Ordinary Sources: Methanol as a probe of physical conditions in Orion KL
S. Wang, E. A. Bergin, N. R. Crockett +45
We have examined methanol emission from Orion KL with of the {\em Herschel}/HIFI instrument, and detected two methanol bands centered at 524 GHz and 1061 GHz. The 524 GHz methanol…
Herschel observations of EXtra-Ordinary Sources: The Terahertz spectrum of Orion KL seen at high spectral resolution
N. R. Crockett, E. A. Bergin, S. Wang +60
We present the first high spectral resolution observations of Orion KL in the frequency ranges 1573.4 - 1702.8 GHz (band 6b) and 1788.4 - 1906.8 GHz (band 7b) obtained using the HI…
Ortho-to-para ratio of interstellar heavy water
C. Vastel, C. Ceccarelli, E. Caux +65
Despite the low elemental deuterium abundance in the Galaxy, enhanced molecular D/H ratios have been found in the environments of low-mass star forming regions, and in particular t…
Herschel/HIFI deepens the circumstellar NH3 enigma
K. M. Menten, F. Wyrowski, J. Alcolea +23
Circumstellar envelopes (CSEs) of a variety of evolved stars have been found to contain ammonia (NH3) in amounts that exceed predictions from conventional chemical models by many o…