Changes between Version 345 and Version 346 of AstroTechTalk
- Timestamp:
- 21 Feb 2018, 11:47:02 (6 years ago)
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AstroTechTalk
v345 v346 29 29 || '''16.02.2018[[BR]](10hrs, HdA)''' || '''Robert Harris (ZAH-LSW)''' || '''Astrophotonics'''[[BR]][[BR]]The field of Astrophotonics bridges the gap between the small mass-produced devices manufactured for the telecommunications industry and large one-off astronomical instruments. [[BR]][[BR]]In this talk Robert Harris will summarise the developments in the field, the technologies that made this possible and some of the successes. He will examine where these technologies could be of use and some of the future devices which could be manufactured.[[BR]][[BR]]Presentation: German[[BR]][https://svn.mpia.de/trac/gulli/att/raw-attachment/wiki/AlteVortraege2018S1/2018-02-16_AP.pdf Slides: English][[BR]]Questions: German, English || 30 30 || '''23.02.2018[[BR]](10hrs, HdA)''' || '''Ernest A. Michael (RAIG, University of Chile)''' || '''Fiber-based Heterodyne Infrared Interferometer: Towards a small proof-of-principle Prototype at 1.55 µm '''[[BR]] [[BR]]Ernest Michael presents the concept for a comparatively inexpensive near-infrared heterodyne interferometer based on commercial 1.55µm fiber components. First lab results were obtained for the telescope to single-mode fiber coupling control, LO phase-stabilization between both telescopes, and the heterodyne correlation receiver system. He also discusses the applicability of this concept for long-baseline, high telescope number systems and mid-infrared wavelengths.[[BR]][[BR]]Presentation: German[[BR]][https://svn.mpia.de/trac/gulli/att/raw-attachment/wiki/AlteVortraege2018S1/2018-02-23_HeterodyneInterferometer.pdf Slides: English][[BR]]Questions: German, English || 31 || 02.03.2018[[BR]](10hrs, HdA) || Gabriele Rodeghiero || The MICADO Calibration Assembly (MCA)||31 || '''02.03.2018[[BR]](10hrs, HdA)''' || '''Gabriele Rodeghiero''' || '''Preliminary Design of the MICADO Calibration Assembly'''[[BR]][[BR]]This presentation will survey the preliminary design of the MICADO Calibration Assembly (MCA). MICADO is targeted to be one of the first light instruments of the Extremely Large Telescope (ELT) and it will embrace imaging, spectroscopic and astrometric capabilities including their calibration. The astrometric requirements are particularly ambitious aiming for 50 µas differential precision within a single epoch. After a complete overview of the MCA subsystems, their functionalities, design and status, particular emphasis will be placed on the ongoing efforts (both prototype testing and simulation) on the astrometric calibration of the optical distortions of the instrument and the telescope.[[BR]][[BR]]Presentation: English[[BR]][https://svn.mpia.de/trac/gulli/att/raw-attachment/wiki/AlteVortraege2018S1/2018-03-02_MCA.pdf Slides: English][[BR]]Questions: German, English || 32 32 || '''09.03.2018[[BR]](11hrs, MPIA Hoersaal)''' || '''Joerg Wagner (ISD, University of Stuttgart)''' || '''J.G.F. Bohnenberger: [[BR]]Astronomer, Geodesist and Inventor of the Gyroscope'''[[BR]][[BR]]Johann Gottlieb Friedrich Bohnenberger (1765-1831) was a professor of physics, mathematics, and astronomy at the University of Tuebingen, the scientific head surveying officer of the early Kingdom of Wuerttemberg, and an important German astronomer of the 19th century. He made both major contributions to introducing modern geodesy in Germany and invented various physical instruments. The "Machine of Bohnenberger" is considered the first gyro with cardanic suspension and forms the precursor of Foucault’s Gyroscope of 1852. This presentation discusses this apparatus as well as the life and the scientific work of J.G.F. Bohnenberger.[[BR]][[BR]]Presentation: German[[BR]][https://svn.mpia.de/trac/gulli/att/raw-attachment/wiki/AlteVortraege2018S1/2018-03-09_Bohnenberger.pdf Slides: English][[BR]]Questions: German, English || 33 33 || 16.03.2018[[BR]]'''(11hrs, MPIA Hoersaal)''' || Klaus Meisenheimer || MATISSE on Paranal ||
