Changes between Version 265 and Version 266 of AstroTechTalk
- Timestamp:
- 2 Mar 2017, 15:54:33 (7 years ago)
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AstroTechTalk
v265 v266 34 34 || 24.02.2017 || || || 35 35 || 03.03.2017 || || || 36 || 10.03.2017 [[BR]](11hrs, MPIA) || Damien Gratadour (Observatoire de Paris) || !GreenFlash, an AO-Realtime-Computer Prototype for the EELT||37 || 17.03.2017 || ||||36 || 10.03.2017 || || || 37 || '''17.03.2017 (11hrs, MPIA)''' || '''Wilma Trick''' || '''The Secret Life of the Galaxies'''[[BR]][[BR]]During dark nights the Milky Way is observable as a wide band of stars and dust in the sky. The Milky Way is our home galaxy hosting also our solar system, but is only one of one hundred billion galaxies in the whole universe. There are spiral galaxies, huge elliptic galaxies, cloud-like dwarf galaxies, and galaxies dancing around each other before they finally merge into one. [[BR]][[BR]]Where do all these galaxies come from?[[BR]]And why do they look as they look?[[BR]][[BR]]In the past decades astro physicists have act as space detectives and have collected evidence for a better understanding of galaxy formation and evolution. One of the prime witnesses: The motion of stars. This led for instance to the discovery of super massive black holes and the mysterious dark matter of which we actually know only very little, apart from its omnipresent existence and its necessity for the formation of galaxies. [[BR]][[BR]]Presentation: German[[BR]][https://svn.mpia.de/trac/gulli/att/raw-attachment/wiki/AlteVortraege2017S1/2017-03-17_geheimesLeben.pdf Slides: German][[BR]]Questions: German, English || 38 38 || '''24.03.2017[[BR]](11hrs, MPIA)''' || '''Robert Harris (ZAH, LSW)''' || '''Photonic Reformatting'''[[BR]][[BR]]As astronomical telescopes grow in size the instruments behind them also grow. As the individual components become bigger, they become more difficult to manufacture, increasing the cost and making them more fragile (meaning unless you’ve got a particularly careful PhD student the cost of having spares also goes up). This has lead to many instruments using techniques such as image slicing to reduce the size of individual components and make the point spread function from the telescope manageable. [[BR]][[BR]]Astrophotonics is a field that aims to combat the problems of size, cost and complexity. The idea is to take devices and technologies developed for the field of photonics and make use of them in astronomy. In this talk Robert Harris will describe his past, current and future work in a subfield of astrophotonics, photonic reformatting. This is akin to image slicing, but occurs within the fibre, meaning the devices are fully integrated. He will discuss both theoretical and practical aspects of his work and draw conclusions as to where he feels the field will go next.[[BR]][[BR]]Presentation: English[[BR]][https://svn.mpia.de/trac/gulli/att/raw-attachment/wiki/AlteVortraege2017S1/2017-03-24_Reformatting.pdf Slides: English][[BR]]Questions: German, English || 39 || 31.03.2017 || ||||39 || 31.03.2017 (10hrs, HdA) || Damien Gratadour (Observatoire de Paris) || !GreenFlash, an AO-Realtime-Computer Prototype for the EELT || 40 40 || 07.04.2017[[BR]](TBC)[[BR]](10hrs, HdA) || Roman Follert || Update on CRIRES+ || 41 41 || 14.04.2017 || -- || Good Friday ||
