| 28 | | || '''16.01.2015''' || '''Wolfgang Gaessler''' ||'''Sharper vision with ARGOS eyes''' [[BR]][[BR]]Argos - the all-seeing - was a primordial giant with hundred eyes in the Greek mythology. ARGOS the Advanced Rayleigh guided Ground layer adaptive Optics System for the LBT (Large Binocular Telescope) was named after this giant, because the system will also have a lot of eyes. Recently, the first of these eyes were taken into operation. Now, ARGOS is watching with "Argos-eyes" for LUCI. [[BR]][[BR]]One year after the first laser stars have been projected on sky, the "Loop" could be closed on one side of the LBT simultaneously on three guide stars. The performance of the system was better than expected. A factor two improvement in image quality was the goal, but reality exceeded this prediction. Nevertheless, the images look not that spectacular than of other Adaptive Optics Systems, because ARGOS does not goal on the diffraction limit but on increasing the slit throughput for spectroscopy in a large range of atmospheric conditions. [[BR]][[BR]]Wolfgang Gaessler will present the project and its current status. He will tell us which problems are solved and which still have to be solved. And we will learn when ARGOS will be ready and what one can do with it. But the question is: Will ARGOS have the same fate as Argos? In the Greek mythology, Zeus ordered Hermes to kill Argos to free Io. Hermes succeed. In the real world it also looks like that some Argeiphontes (slayer of Argos) start to gather! [[BR]][[BR]] |
| 29 | | || 23.01.2015 || Peter Bizenberger ||Mission Impossible: The alignment of LINC-NIRVANA || |
| | 28 | || '''16.01.2015''' || '''Wolfgang Gaessler''' ||'''Sharper vision with ARGOS eyes''' [[BR]][[BR]]Argos - the all-seeing - was a primordial giant with hundred eyes in the Greek mythology. ARGOS the Advanced Rayleigh guided Ground layer adaptive Optics System for the LBT (Large Binocular Telescope) was named after this giant, because the system will also have a lot of eyes. Recently, the first of these eyes were taken into operation. Now, ARGOS is watching with "Argos-eyes" for LUCI. [[BR]][[BR]]One year after the first laser stars have been projected on sky, the "Loop" could be closed on one side of the LBT simultaneously on three guide stars. The performance of the system was better than expected. A factor two improvement in image quality was the goal, but reality exceeded this prediction. Nevertheless, the images look not that spectacular than of other Adaptive Optics Systems, because ARGOS does not goal on the diffraction limit but on increasing the slit throughput for spectroscopy in a large range of atmospheric conditions. [[BR]][[BR]]Wolfgang Gaessler will present the project and its current status. He will tell us which problems are solved and which still have to be solved. And we will learn when ARGOS will be ready and what one can do with it. But the question is: Will ARGOS have the same fate as Argos? In the Greek mythology, Zeus ordered Hermes to kill Argos to free Io. Hermes succeed. In the real world it also looks like that some Argeiphontes (slayer of Argos) start to gather! [[BR]][[BR]]!Talk:German [[BR]][https://svn.mpia.de/trac/gulli/att/raw-attachment/wiki/WikiStart/2015-01-16_ARGOS.pdf Slides: English][[BR]]Questions: German, English || |
| | 29 | || '''23.01.2015''' || '''Peter Bizenberger''' ||'''Mission Impossible: The alignment of LINC-NIRVANA'''[[BR]] [[BR]]Patience and meditation is the way to reach Nirvana. That's what the Buddhism teaches. How is this related to LINC-NIRVANA? This instrument exists in principal just of three simple components: telescope, plus Adaptive Optics, plus infrared camera - all done before, easy - some people thought and also told! But, if one wants explore the full capability of a 23 meter telescope with this instrument, one has to invest a lot. The individual units are already demanding, but they are designed for the combination of the two 8.4 meter primary mirrors of the LBT (Large Binocular Telescope) and they have to be aligned with such precision accordingly. This brings existing technology to its limits - mission impossible? [[BR]] [[BR]]Peter Bizenberger explains the intricacy of LN and the requirements on the precision needed to align LN. A task which is done the first time at our institute in such complexity. To fulfill this task detailed planning and a large number of measurement technology and tools are unavoidable as well the control of the execution of each step are essential. Peter will present to us an overview of how the team handles the efforts from the design of the instrument to the fixing of the last screw, as well as of current the results. A thriller with lot of Action ....................................Items! [[BR]][[BR]]!Talk:German [[BR]][https://svn.mpia.de/trac/gulli/att/raw-attachment/wiki/WikiStart/2015-01-23_LN_alignment.pdf Slides: English][[BR]]Questions: German, English[[BR]]Answers: Swabian || |
