Max Planck Institute for Astronomy - Annual Report 2007

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100 IV. Instrumental Developments and Projects Fig. IV.1.12: Vibration measurements on the tertiary mirror carrier with LBT’s protective structure open. Two MPIA software developers for these tasks are fully integrated into the LBT software team in Tucson (Arizona). In the case of the IIF packet, a significant part of the work of the software engineer is dedicated to the coordination with various instrument builders in Columbus (Ohio), Bochum, and Potsdam; thus requiring extended stays in Tucson. The developer of the GCS packet has been dispatched by the MPIA for a longer period of time. Martin Kürster, Luis Borelli, Torsten Leibold Fig. IV.1.13: The MPIA DiMM (small telescope on J-shaped mount) located near the top end of the Large Binocular Telescope.
Differential Image Motion Monitor Unambiguous knowledge of the current seeing conditions is essential to the success of large ground-based telescopes. Such knowledge permits reactive observing, in which the queuing of ongoing programs can be matched to current atmospheric conditions. Over the longer term, correlation of seeing measurements with other seasonal and meteorological indicators can help in predicting the image quality on any given night. This al- IV.1 Instruments for the LBT 101 lows more effective planning and better use of scarce observational resources. During 2007, a team of MPIA scientists constructed and delivered a Differential Image Motion Monitor (DiMM) to the Large Binocular Telescope (LBT). This device measures the seeing by recording the differential motion of two images of a single star, which pass through two slightly different paths in the Earth’s atmosphere. Although conventional in most ways, the MPIA Di MM faced a peculiar and difficult challenge arising from restrictions on construction at the LBT site. A typical Di MM installation includes a tall tower (ca 10 m) located sufficiently far from other structures to allow sampling of the free air turbulence. However, the LBT sits in a scientific natural refugium and new construction permits are essentially unavailable. As a result, the MPIA team developed a novel mounting and guiding system which allows the DiMM to point at and track a star while mounted to the LBT telescope, which is itself pointing at and tracking a different target. Johannes Schmidt, Ralf-Rainer Rohloff, Armin Böhm Fig. IV.1.14: Test camera #1 (above) mounted on the adaptive optics test tower in Florence. Test camera #2 (below) attached to the Gregorian focal port, which Lucifer will occupy in Fall 2008.
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Max Planck Institute for Astronomy
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Max Planck Institute for Astronomy
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Contents Preface ..................
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6 I. General I. General I.1 Scienti
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8 I. General Planet and Star Format
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10 I. General plementary. Ground-ba
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12 I. General High-fidelity imagers
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14 I. General Fig. I.6: Foreseen de
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16 I. General I.3 National and Inte
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18 I. General Edinburgh, University
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20 II. Highlights II.1 Youngest Ext
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22 II. Highlights radial velocity [
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24 II. Highlights II.2 A Search for
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26 II. Highlights F 1 [5] -2 0 2 4
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28 II. Highlights Number of Planets
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30 II. Highlights z [AU] z [AU] 1 0
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32 II. Highlights t =0 T orb t =1 T
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34 II. Highlights II.4 An Exoplanet
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36 II. Highlights F / F 12m 4 3 2
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38 II. Highlights the planet disapp
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40 II. Highlights The Hercules Dwar
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42 II. Highlights on the giant bran
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44 II. Highlights II.6 Black Hole A
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46 II. Highlights F [10 -23 W cm -
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48 II. Highlights Flux [10 -23 W cm
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Page 54 and 55: 52 II. Highlights i [mag] i [mag] 1
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Page 66 and 67: 64 III. Selected Research Areas III
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Page 120 and 121: 118 V. People and Events Dr. Gerner
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Page 126 and 127: 124 V. People and Events Ludwig-Bie
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Page 138 and 139: 136 Staff Directors: Henning, Rix (
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Page 148 and 149: 146 Conferences StageS workshop, MP
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150 Conferences Anna Pasquali: ASU
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152 Publications Apai, D., A. Bik,
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154 Publications Chen, X. P., R. La
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156 Publications of an unusual dwar
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158 Publications Moreau, J. A. Peac
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160 Publications Pontoppidan, K. M.
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162 Publications Garching-Bonn Deep
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164 Publications Zirm, A. W., A. va
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166 Publications Linz, H., R. Klein
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168 Publications Güdel, M.: The su
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A656 Eppelheim Patrick- Henry- Sied
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Max Planck Institute for Astronomy - Annual Report 2007

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