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Discovery of Time Variation of the Intensity of Molecular Lines in IRC+10216 in The Submillimeter and Far Infrared Domains
J. Cernicharo, D. Teyssier, G. Quintana-Lacaci +12
We report on the discovery of strong intensity variations in the high rotational lines of abundant molecular species towards the archetypical circumstellar envelope of IRC+10216. T…
Physical structure of the photodissociation regions in NGC 7023. Observations of gas and dust emission with Herschel
M. Köhler, E. Habart, H. Arab +16
The determination of the physical conditions in molecular clouds is a key step towards our understanding of their formation and evolution of associated star formation. We investiga…
The wind of W Hya as seen by Herschel. II. The molecular envelope of W Hya
T. Khouri, A. de Koter, L. Decin +18
The evolution of low- and intermediate-mass stars on the asymptotic giant branch (AGB) is mainly controlled by the rate at which these stars lose mass in a stellar wind. Understand…
Confirmation of circumstellar phosphine
M. Agundez, J. Cernicharo, L. Decin +2
Phosphine (PH3) was tentatively identified a few years ago in the carbon star envelopes IRC+10216 and CRL2688 from observations of an emission line at 266.9 GHz attributable to the…
Polarisation Observations of HO 620.701 GHz Maser Emission with Herschel/HIFI in Orion KL
S. C. Jones, M. Houde, M. Harwit +9
Context. The high intensities and narrow bandwidths exhibited by some astronomical masers make them ideal tools for studying star-forming giant molecular clouds. The water maser tr…
Herschel observations of gas and dust in comet C/2006 W3 (Christensen) at 5 AU from the Sun
M. de Val-Borro, D. Bockelée-Morvan, E. Jehin +19
We aimed to measure the H2O and dust production rates in C/2006 W3 (Christensen) with the Herschel Space Observatory at a heliocentric distance of ~ 5 AU. We have searched for emis…