| 55 | | || '''21.07.2017 [[BR]](10hrs, HdA)''' || '''Roman Follert |
| | 55 | || '''21.07.2017 [[BR]](10hrs, HdA)''' || '''Roman Follert (TLS Tautenburg)''' || '''Resurrection of the beast - Impressions of the CRIRES^+^ MAIT phase and a project update'''[[BR]][[BR]]High-resolution infrared (IR) spectroscopy plays an important role in astrophysics from the search for exoplanets to cosmology. The majority of existing IR spectrographs were and are limited by their small simultaneous wavelength coverage. The adaptive optics (AO) assisted CRIRES instrument, previously installed at the Very Large Telescope (VLT), was an IR (0.92 - 5.2 μm) high-resolution spectrograph which was in operation since 2006. CRIRES was a unique instrument, accessing a parameter space (wavelength range and spectral resolution), which up to now was largely uncharted, as described in Käufl et al. (2004). However, the setup was limited to a narrow, single-shot, spectral range of about 1/70 of the central wavelength, resulting in low observing efficiency for many modern scientific programmes requiring a broad spectral coverage. [[BR]][[BR]]By introducing crossdispersing elements and larger detectors, the simultaneous wavelength range can be increased by a factor of ten with respect to the old configuration, while the total operational wavelength range can be preserved: CRIRES^+^ has passed its Final Design Review in April 2016. Since then, installation of the instrument has come a long way. Roman Follert will present the most recent status of the instrument, give an overview of the design and how it has been realized by now. He will also summarize the test results (mostly subsystem) obtained so far. Last but not least, an update on the project schedule will be given.[[BR]][[BR]]Presentation: German[[BR]][https://svn.mpia.de/trac/gulli/att/raw-attachment/wiki/AlteVortraege2017S1/2017-07-21_CRIRES+Update.pdf Slides: English][[BR]]Questions: German, English || |
