Urs U. Graf
University of Cologne
14 Papers
101 Citations
Urs U. Graf is an academic researcher from University of Cologne. The author has contributed to research in topics: Spectrometer & Telescope. The author has an hindex of 7, co-authored 14 publications.
Chat about Author
Papers
Astrophysical Detection of the Helium Hydride Ion HeH
Rolf Güsten,Helmut Wiesemeyer,David A. Neufeld,Karl M. Menten,Urs U. Graf,Karl Jacobs,Bernd Klein,O. Ricken,Christophe Risacher,Jürgen Stutzki +9 more
TL;DR: In this article, the rotational ground-state transition of the helium hydride ion HeH+ at a wavelength of 149.1 micrometres in the planetary nebula NGC-7027 was detected.
179
Sulphur-bearing molecules in diffuse molecular clouds: new results from SOFIA/GREAT and the IRAM 30 m telescope
David A. Neufeld,Benjamin Godard,Benjamin Godard,Maryvonne Gerin,Maryvonne Gerin,G. Pineau des Forêts,G. Pineau des Forêts,G. Pineau des Forêts,C. Bernier,E. Falgarone,E. Falgarone,Urs U. Graf,Rolf Güsten,Eric Herbst,Pierre Lesaffre,Pierre Lesaffre,Peter Schilke,Paule Sonnentrucker,Helmut Wiesemeyer +18 more
TL;DR: In this article, the column densities of sulphur-bearing molecules were observed in foreground diffuse molecular clouds lying along the sight-lines to five bright continuum sources, and the observed abundance ratios were considered in the context of shock and turbulent dissipation region (TDR) models.
Sulphur-bearing molecules in diffuse molecular clouds: new results from SOFIA/GREAT and the IRAM 30 m telescope
David A. Neufeld,Benjamin Godard,Benjamin Godard,Maryvonne Gerin,Maryvonne Gerin,G. Pineau des Forêts,G. Pineau des Forêts,G. Pineau des Forêts,C. Bernier,E. Falgarone,E. Falgarone,Urs U. Graf,Rolf Güsten,Eric Herbst,Pierre Lesaffre,Pierre Lesaffre,Peter Schilke,Paule Sonnentrucker,Helmut Wiesemeyer +18 more
TL;DR: In this paper, the authors observed five sulphur-bearing molecules in foreground diffuse molecular clouds lying along the sight-lines to five bright continuum sources, and used the IRAM 30m telescope at Pico Veleta to detect the H$_2$S 1(10)-1(01), CS J=2-1 and SO 3(2)-2(1) transitions.
51
Velocity profiles of [CII], [CI], CO, and [OI] and physical conditions in four star-forming regions in the Large Magellanic Cloud
Yoko Okada,Rolf Güsten,M. A. Requena-Torres,Markus Röllig,Jürgen Stutzki,Urs U. Graf,Annie Hughes +6 more
TL;DR: In this article, the authors investigated the physical properties of the star-forming interstellar medium (ISM) in the Large Magellanic Cloud (LMC) by separating the origin of the emission lines spatially and spectrally.
Velocity profiles of [CII], [CI], CO, and [OI] and physical conditions in four star-forming regions in the Large Magellanic Cloud
Yoko Okada,Rolf Güsten,M. A. Requena-Torres,M. A. Requena-Torres,Markus Röllig,Jürgen Stutzki,Urs U. Graf,Annie Hughes +7 more
TL;DR: In this paper, the authors investigated the physical properties of the star-forming interstellar medium (ISM) in the Large Magellanic Cloud (LMC) by separating the origin of the emission lines spatially and spectrally.