V. Ossenkopf
Publications215
Citations278
Influential Citations24
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- Influence
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- V. Ossenkopf, Th. Henning
- 1994
- V. Ossenkopf
- 1993
Dust extinction observations and the calculation of gas-dust dynamics indicate that in dense clumps of molecular clouds dust grains coagulate efficiently. We set up a detailed model for the dust… (More)
- Pieter R. Roelfsema, Frank Helmich, +96 authors Umut A. Yildiz
- 2012
Aims. In this paper the calibration and in-orbit performance of the Heterodyne Instrument for the Far-Infrared (HIFI) is described. Methods. The calibration of HIFI is based on a combination of… (More)
Observational determinations of opacities of circumstellar silicates, relative to the peak value near 10 μm, are used to estimate the optical constants n and k, the real and imaginary parts of the… (More)
- Delphine Russeil, Nicola Schneider, +30 authors Glenn J. White
- 2013
- Lars Erik Kristensen, Ruud Visser, +64 authors Nick Whyborn
- 2010
Aims. Our aim is to determine the critical parameters in water chemistry and the contribution of water to the oxygen budget by observing and modelling water gas and ice for a sample of eleven… (More)
- Zs. Nagy, F. van der Tak, +8 authors Edwin A. Bergin
- 2012
The abundances of interstellar CH+ and SH+ are not well understood as their most likely formation channels are highly endothermic. Using data from Herschel, we study the formation of CH+ and SH+ in a… (More)
Context. The clumpy density structure of photon-dominated regions is well established, but the physical properties of the clump s and of the surrounding interclump medium are only approximately… (More)
- Gary J. Melnick, Volker Tolls, +49 authors Jonas Zmuidzinas
- 2010
We report the detection of more than 48 velocity-resolved ground rotational state transitions of H2(16)O, H2(18)O, and H2(17)O - most for the first time - in both emission and absorption toward Orion… (More)
- Edith Falgarone, V. Ossenkopf, +30 authors Frank Schmulling
- 2010
We report the first detection of the ground-state rotational transition of the methylidyne cation CH^+ towards the massive star-forming region DR 21 with the HIFI instrument onboard the Herschel… (More)