R
Ralf Bender
Researcher at Max Planck Society
Publications - 542
Citations - 51741
Ralf Bender is an academic researcher from Max Planck Society. The author has contributed to research in topics: Galaxy & Redshift. The author has an hindex of 92, co-authored 423 publications receiving 49115 citations. Previous affiliations of Ralf Bender include Institut d'Astrophysique de Paris & ASTRON.
Papers
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Journal Article
Spectroscopic comfirmation of nova candidates in M31
Wolfgang Pietsch,Vadim Burwitz,Jochen Greiner,A. Rau,Gloria Sala,Ralf Bender,J. Fliri,Arno Riffeser,Stella Seitz,M. Alises,A. Aguirre,N. Cardiel,F. Hoyo +12 more
Proceedings ArticleDOI
Optical performance analysis and test results of the EUCLID near-infrared spectro-photometer
C. Gal,Hans Thiele,E. Gubbini,A. Mecsaci,A. Kuisl,A. Meister,A. Mottaghibonab,K. Gawlik,M. Dubowy,Frank Grupp,A. Bode,C. Wimmer,Ralf Bender +12 more
TL;DR: In this article, the performance of the lens holder design in terms of glue shrinkage effects, gravity release and interface tolerances is verified by an adapted test facility including an interferometer based optical metrology system.
Journal ArticleDOI
First results from SPIFFI, II: The luminous infrared galaxy NGC 6240 and the luminous sub-millimeter galaxy SMMJ 14011+0252
Frank Eisenhauer,M. Tecza,Niranjan Thatte,R. Genzel,R. Abuter,Christof Iserlohe,Juergen Schreiber,Matthew Horrobin,A. A. Schegerer,Andrew J. Baker,Ralf Bender,Ric Davies,Matt Lehnert,Dieter Lutz,Nicole P. H. Nesvadba,Stella Seitz,Linda J. Tacconi +16 more
TL;DR: Horrobin et al. as discussed by the authors used the SPIFFI integral field spectrometer at the VLT to study the stellar and gas dynamics in the NGC 6240 and SMMJ 14011+0252 galaxies.
Proceedings ArticleDOI
Final tolerancing approach and the value of short-cutting tolerances by measurement
Frank Grupp,Eric Prieto,Norbert Geis,A. Bode,Christof Bodendorf,Anne Costille,Reinhard O. Katterloher,D. Penka,Ralf Bender +8 more
TL;DR: In this article, the authors focus on the concept of shortcutting the tolerance chain by measurement wherever useful and possible, and they show three major examples of this shortcutting strategy, such as focal length determination before detector placement, which can reduce the overall tolerance induced imaging errors.
Proceedings ArticleDOI
A new fiber slit assembly for the FOCES spectrograph
Hanna Kellermann,Hanna Kellermann,Frank Grupp,Anna Brucalassi,Florian Lang-Bardl,Christian Franik,Ulrich Hopp,Ralf Bender +7 more
TL;DR: In this article, the authors presented a detailed characterization of this new device, based on the results of extensive lab tests performed at the Munich University Observatory in the German Alps, and showed that it meets the requirements for performing precision radial velocity measurements on a competitive level.