AstroTechTalk – att

Version 439 (modified by Ralph Hofferbert, 5 years ago) (diff)
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The AstroTechTalk (ger) offers a place to discuss, for all interested colleagues and especially for the technical departments, the project leaders, the administration and the scientists as the ultimately users:

status of instrumentation projects
scientific tasks and features of the instruments in construction or planned
new possible involvements
technical innovations and developments
technical problems and their solutions
logistical problems and their solutions
how to improve operation and observation
project standards.

Time: Always Fridays 11:00 - 12:00 (during the construction work: 10:00 - 11:00)

Location: MPIA Hoersaal (during the construction work: HdA Auditorium)

Outline:

Announcements (news, visitors, etc.) (mainly in German)
Talk of about 30 min about a selected topic (German or English, will be announced)
Follow up discussion and questions (German or English, depending on the speaker)

Proposals for talks: Please send an email to "hofferbert -at- mpia.de" or "naranjo -at- mpia.de" - alternatively you might reach us by phone (06221-528209 or -290) or in person (room 211 or 018) at MPIA.

Date	Speaker	Topic
13.09.2019
20.09.2019	--	MPIA 50-year-celebration
27.09.2019
04.10.2019	--	Bridge Day after German Unity Day
11.10.2019 (11hrs, MPIA Hoersaal)	Jonathan Crass (University of Notre Dame, USA)	Finding Earth-like planets among the noise - Achieving precision radial velocity measurements with single-mode fibres Today's radial velocity (RV) instruments for planet detection are primarily seeing-limited instruments fed using multi-mode fibres. This design, while previously state-of-the art, leads to systematic errors which is beginning to limit our ability to study some of the most challenging, and consequently most interesting planetary systems. In the era of adaptive optics at large telescope facilities worldwide, it is now possible to inject a diffraction-limited input into single-mode optical fibres to feed next generation RV spectrographs. These have a reduced instrument volume, a stable input source, and can offer improved overall stability and precision for RV over their multi-mode fed counterparts. iLocater is a next-generation precision RV spectrograph under development for the Large Binocular Telescope (LBT). It is one of the first astronomical spectrographs to use single-mode fibres for precision radial velocity measurement and will provide high resolution (R~150,000-240,000) NIR spectra in a stable environment. Jonathan Crass will present an overview of the instrument, its current status and novel science programs. Presentation: English Slides: English Questions: German, English
18.10.2019
25.10.2019 (11hrs, MPIA Hoersaal)	Michael Boehm (ISYS Stuttgart)	Ultralightweight and Adaptive Structures – a Technology for Tomorrow’s Telescopes and Instruments? Lightweight structures have become a reality for many mass-sensitive applications, such as airplane body design, car body design, or large civil engineering structures. For passive structures, these designs present in most cases a minimum in terms of required mass under given safety limitations and user comfort constraints. However, it is possible to stay within these limits and reduce the total embodied mass even further by introducing active structures, which we refer to as ultralightweight design. Through their various actuators, these structures can adapt to external loads and disturbances, thus increasing the utilization of the structure and its elements, which leads to even lighter designs. In light of the expected construction activities within the next 20-30 years, this can help saving millions of tons of concrete and steel and significantly reduce waste production and CO₂-emissions of the construction industry. What’s more, the developed methods and ideas can also be applied to any large-scale applications where high masses are critical, such as space flights and airplanes, harbor cranes, ships and even telescopes and their instruments. The talk will focus on ideas, methods and results of our research in the context of adaptive ultralightweight structures with a focus on large civil engineering structures. At the end, possible implications of this technology for telescopes and their instruments will be presented. Presentation: German Slides: English Questions: German, English
01.11.2019	--	All Saints
08.11.2019
15.11.2019
22.11.2019 (Time TBD, Room TBD)	Prof. Dr. Andreas Heinrich (Aalen University)	Additive Manufacturing of Active and Passive Optical Components Abstract Presentation: German Slides: English Questions: German, English
29.11.2019	Thomas Ruppel (SwissOptic AG)	High-Precision-Optics
06.12.2019 (Time TBD, Room TBD)	Zoltan Hubert (University of Grenoble)	MAORY after the redesign Abstract Presentation: German Slides: English Questions: German, English
13.12.2019	Thomas Henning	Origins of Life
20.12.2019		Last talk before Christmas Break
27.12.2019	--	Christmas Break