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Line-of-sight distribution of water towards the SgrB2 complex
C. Comito, P. Schilke, M. Gerin +3
Here we report the detection, with the Caltech Submillimeter Observatory, of the 894-GHz HDO(111-000) transition, observed in absorption against the background continuum emission o…
Interstellar triply deuterated ammonia
Floris F. S. van der Tak, Dariusz C. Lis, Maryvonne Gerin +3
Research on interstellar ND3 is reviewed and updated from the discovery papers. Results from observations of a dozen sources at centimeter and submillimeter wavelengths are present…
Connection between PAHs and small hydrocarbons in the Horsehead Nebula Photo-Dissociation Region
David Teyssier, David Fosse, Maryvonne Gerin +3
We present recent observations of small hydrocarbons (C3H2, C2H, C4H) with high abundances in the Photo-Dissociation Region of the Horsehead nebula. Our results show for the first…
Carbon Chemistry in interstellar clouds
Maryvonne Gerin, David Fosse, Evelyne Roueff
We discuss new developments of interstellar chemistry, with particular emphasis on the carbon chemistry. We confirm that carbon chains and cycles are ubiquitous in the ISM and clos…
ISO observations of the reflection nebula Ced 201: evolution of carbonaceous dust
D. Cesarsky, J. Lequeux, C. Ryter +1
We present spectrophotometric imaging mid-IR observations of the reflection nebula Ced201. Ced201 is a part of a molecular cloud illuminated by a B9.5V star moving through it at mo…
ISO SWS-LWS observations of the prototypical reflection nebula NGC 7023
A. Fuente, J. Martin-Pintado, N. J. Rodriguez-Fernandez +2
We present SWS and LWS ISO observations towards a strip across the photodissociation region (PDR) in the reflection nebula NGC 7023. SWS02 and LWS01 spectra have been taken towards…