| 27 | 27 | || '''12.09.2014''' || '''Martin Kürster''' || '''The project landscape of the technical departments'''[[BR]][[BR]]Here's another one of those funny names for a new instrument. But actually, what is it about? Do you also sometimes feel like this? Martin Kürster will give us an overview of the instruments we are building at MPIA. From this, we should be able to get the connection between those acronyms and the instruments. But not only that, after several years of heavy overbooking of the technical departments the mid-term future of the project landscape has recently become a bit unclear due to repeated delays of the European Extremely Large Telescope (E-ELT). Martin Kürster will also tell us about possible future initiatives, project acquisitions still under discussion, that will pose new challenges for the technical departments.[[BR]][[BR]]Talk: German [[BR]][https://svn.mpia.de/trac/gulli/att/raw-attachment/wiki/WikiStart/2014-09-12_instrumentation_projects.pdf Slides: English][[BR]]Questions: German, English || |
| 28 | 28 | || '''19.09.2014''' || '''Ralf-Rainer Rohloff''' || '''Precision metal optics over a large temperature range '''[[BR]] [[BR]]Since long, metal optics are an important part of astronomical instruments. Often diamond turned mirrors of aluminum (Al6061) are used. But it is difficult to polish aluminum. Therefore, the mirror is coated with Nickle Phosphor layer, which can be polished more easily. This is very important at shorter wavelength. But the mirrors deform with temperature changes because of the different coeffient of thermal expansion between aluminum and NiP. [[BR]][[BR]]Ralf-Rainer will tell us about a collaboration between MPIA Heidelberg and IOF Jean, which developed and tested a new material to minimize the temperature related deformation of such mirrors. The material consists of an aluminum silicate, which has a coefficient of thermal expansion close to NiP. Thus, the deformation could be reduced drastically. But now the work just started. Is it possible to built a mirror of this material? Does the material change with time? The best answer would be the study could show that such mirror can be built and are stable over time! [[BR]][[BR]]Talk: German [[BR]][https://svn.mpia.de/trac/gulli/att/raw-attachment/wiki/WikiStart/2014-09-19_metal_optics.pdf Slides: English] [[BR]]Questions: German, English || |
| 29 | | || 26.09.2014 || '''Tom Herbst''' || '''LINC-NIRVANA - the path to the telescope[[BR]][[BR]]'''[[BR]]LINC-NIRVANA is an ambitious high resolution imager for the LBT, and it is currently the largest single instrument contribution at the MPIA. We are also the Principal Investigator institute, and hence are responsible for the complex integration and testing phase now underway.[[BR]][[BR]]LN uses Multi-Conjugate Adaptive Optics (MCAO) for high-sky-coverage diffraction-limited imagery and (eventually) interferometric beam combination. The last two years have seen both successes and challenges. On the one hand, final integration is proceeding well in the lab. We also achieved First Light at the LBT with the Pathfinder experiment. On the other hand, funding constraints have forced a significant re-planning of the overall instrument implementation. Tom Herbst presents the progress and plans for bringing the remainder of the instrument online at the telescope in the next year.'''[[BR]][[BR]]'''Talk: German[[BR]][https://svn.mpia.de/trac/gulli/att/raw-attachment/wiki/WikiStart/2014-09-26_LN_Part1.pdf Slides: English Part1] [https://svn.mpia.de/trac/gulli/att/raw-attachment/wiki/WikiStart/2014-09-26_LN_Part2.pdf Part2] [https://svn.mpia.de/trac/gulli/att/raw-attachment/wiki/WikiStart/2014-09-26_LN_Part3.pdf Part3][[BR]]Questions: German, English || |
| | 29 | || '''26.09.2014''' || '''Tom Herbst''' || '''LINC-NIRVANA - the path to the telescope[[BR]][[BR]]'''[[BR]]LINC-NIRVANA is an ambitious high resolution imager for the LBT, and it is currently the largest single instrument contribution at the MPIA. We are also the Principal Investigator institute, and hence are responsible for the complex integration and testing phase now underway.[[BR]][[BR]]LN uses Multi-Conjugate Adaptive Optics (MCAO) for high-sky-coverage diffraction-limited imagery and (eventually) interferometric beam combination. The last two years have seen both successes and challenges. On the one hand, final integration is proceeding well in the lab. We also achieved First Light at the LBT with the Pathfinder experiment. On the other hand, funding constraints have forced a significant re-planning of the overall instrument implementation. Tom Herbst presents the progress and plans for bringing the remainder of the instrument online at the telescope in the next year.'''[[BR]][[BR]]'''Talk: German[[BR]][https://svn.mpia.de/trac/gulli/att/raw-attachment/wiki/WikiStart/2014-09-26_LN_Part1.pdf Slides: English Part1] [https://svn.mpia.de/trac/gulli/att/raw-attachment/wiki/WikiStart/2014-09-26_LN_Part2.pdf Part2] [https://svn.mpia.de/trac/gulli/att/raw-attachment/wiki/WikiStart/2014-09-26_LN_Part3.pdf Part3][[BR]]Questions: German, English || |
| 31 | | || 10.10.2014 || '''Casey Deen''' || '''Alignment challenges and strategies for the GRAVITY wavefront sensor cryostat and tower[[BR]]'''[[BR]]Aligning a handful of small mirrors,filters, and lenses with a laser shouldn't be so difficult, right? Surely no more than an afternoon! But after another week spent huddled in a dark laboratory, the light still does not end up in the correct position on the detector! In order to avoid this frustrating situation, an alignment strategy is an important part of building any instrument. Casey Deen presents the alignment concept for the GRAVITY wavefront sensor. This near-infrared sensor works on the Shack-Hartman Principle. Due to their wavelength range, near-infrared sensors have a larger selection of bright guide stars than do optical sensors, as most stars are brightest in the infrared. Optical light is also attenuated more by interstellar dust, making optical sensors impractical in dusty regions like the Galactic Center. The wavefront sensors are located in the Coude rooms of the Unit Telescopes of the Very Large Telescope (VLT). The location and the optical design of the wavefront sensors present several challenges for alignment. Casey and his colleagues present their strategy for alignment of the optics, and are looking forward to hearing opinions, advice and concerns from the assembled experts at MPIA. Expect a lively discussion and insight on what is laboratory work about! [[BR]][[BR]]Talk: English [[BR]][https://svn.mpia.de/trac/gulli/att/raw-attachment/wiki/WikiStart/2014-10-10_GRAVITY_alignment.pdf Slides: German][[BR]]Questions: German, English || |
| 32 | | || 17.10.2014 || '''Klaus Meisenheimer''' || '''PANIC - on the way to the Calar Alto[[BR]][[BR]]'''No, that's not a talk about the infamous taxi transportation to the Calar Alto, at which some astronomer turned the red color of his fresh sun burn into white or even green. PANIC is a panoramic imager. Klaus Meisenheimer will tell us more about its capabilities. He will also[[BR]]show that the tests in the laboratory demonstrated good image quality and high throughput. Currently, the instrument is on its way to the Calar Alto. After arrival it will be re-integrated and will see first light in beginning of November. In this presentation, we also hear what happened to PANIC in this most interesting phase of a project and learn what will be observed with this instrument to understand our universe better.[[BR]][[BR]]Talk: German [[BR]][https://svn.mpia.de/trac/gulli/att/raw-attachment/wiki/WikiStart/2014-10-17_PANIC.pdf Slides: English][[BR]]Questions: German, English || |
| 33 | | || 24.10.2014 || '''Jacopo Farinato[[BR]]'''(OA Padova, SHARK-PI) || '''A SHARK for the Laarge Binocular Telescope (LBT)[[BR]][[BR]]'''A SHARK in the desert of Arizona, are you kidding? This presentation will not be about the killer fish. In April this year, SHARK was selected by the LBT board as possible second generation instrument. The instrument team was asked to move on with a Phase A study. The concept of the instrument goals on studying planets in the near-infrared with a coronograph and in the visual with a integral field spectrograph. But it will serve also[[BR]]other science cases. Jacopo Farinato will explain us the details of the instrument, what happened since April and how the consortium and instrument evolved. There have been different opinion between LBT Observatory and the consortium how the implementation should go on. Make up your own opinion if this is the right path. It might be still time to influence it.'''[[BR]]'''[[BR]]Talk: English [[BR]]Slides: English[[BR]]Questions: English, (German) || |
| | 31 | || '''10.10.2014''' || '''Casey Deen''' || '''Alignment challenges and strategies for the GRAVITY wavefront sensor cryostat and tower[[BR]]'''[[BR]]Aligning a handful of small mirrors,filters, and lenses with a laser shouldn't be so difficult, right? Surely no more than an afternoon! But after another week spent huddled in a dark laboratory, the light still does not end up in the correct position on the detector! In order to avoid this frustrating situation, an alignment strategy is an important part of building any instrument. Casey Deen presents the alignment concept for the GRAVITY wavefront sensor. This near-infrared sensor works on the Shack-Hartman Principle. Due to their wavelength range, near-infrared sensors have a larger selection of bright guide stars than do optical sensors, as most stars are brightest in the infrared. Optical light is also attenuated more by interstellar dust, making optical sensors impractical in dusty regions like the Galactic Center. The wavefront sensors are located in the Coude rooms of the Unit Telescopes of the Very Large Telescope (VLT). The location and the optical design of the wavefront sensors present several challenges for alignment. Casey and his colleagues present their strategy for alignment of the optics, and are looking forward to hearing opinions, advice and concerns from the assembled experts at MPIA. Expect a lively discussion and insight on what is laboratory work about! [[BR]][[BR]]Talk: English [[BR]][https://svn.mpia.de/trac/gulli/att/raw-attachment/wiki/WikiStart/2014-10-10_GRAVITY_alignment.pdf Slides: German][[BR]]Questions: German, English || |
| | 32 | || '''17.10.2014''' || '''Klaus Meisenheimer''' || '''PANIC - on the way to the Calar Alto[[BR]][[BR]]'''No, that's not a talk about the infamous taxi transportation to the Calar Alto, at which some astronomer turned the red color of his fresh sun burn into white or even green. PANIC is a panoramic imager. Klaus Meisenheimer will tell us more about its capabilities. He will also[[BR]]show that the tests in the laboratory demonstrated good image quality and high throughput. Currently, the instrument is on its way to the Calar Alto. After arrival it will be re-integrated and will see first light in beginning of November. In this presentation, we also hear what happened to PANIC in this most interesting phase of a project and learn what will be observed with this instrument to understand our universe better.[[BR]][[BR]]Talk: German [[BR]][https://svn.mpia.de/trac/gulli/att/raw-attachment/wiki/WikiStart/2014-10-17_PANIC.pdf Slides: English][[BR]]Questions: German, English || |
| | 33 | || '''24.10.2014''' || '''Jacopo Farinato[[BR]]'''(OA Padova, SHARK-PI) || '''A SHARK for the Laarge Binocular Telescope (LBT)[[BR]][[BR]]'''A SHARK in the desert of Arizona, are you kidding? This presentation will not be about the killer fish. In April this year, SHARK was selected by the LBT board as possible second generation instrument. The instrument team was asked to move on with a Phase A study. The concept of the instrument goals on studying planets in the near-infrared with a coronograph and in the visual with a integral field spectrograph. But it will serve also[[BR]]other science cases. Jacopo Farinato will explain us the details of the instrument, what happened since April and how the consortium and instrument evolved. There have been different opinion between LBT Observatory and the consortium how the implementation should go on. Make up your own opinion if this is the right path. It might be still time to influence it.'''[[BR]]'''[[BR]]Talk: English [[BR]]Slides: English[[BR]]Questions: English, (German) || |
