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133
pagini
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German
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Documente
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2004
Descriere
High Resolution Near-InfraredImaging Observations of the GalacticCentreDissertation der Fakultat¨ fur¨ PhysikderLudwig-Maximilians-Universitat¨ Munchen¨vorgelegt von Rainer Schodel¨Munchen,¨ den 9.Februar 2004Tag der m¨undlichen Pr¨ufung: 3. Juni 20041.Gutachter: Prof. Dr. Reinhard Genzel2.Gutachter: Prof. Dr. Ralf BenderFigure on cover page: Orbits of stars around Sagittarius A*. Lucy-Richardson de-convolved and beam-restored high-resolution (FWHM 60 milliarcseconds) near-infrared00 00(2:2m) image of the central 1 1 of the nuclear stellar cluster around the supermas-sive black hole Sgr A*. The image was obtained with CONICA/NAOS at the ESO VLT in June2003. On this image Sgr A* can be seen in its flaring state as a point source at the origin ofthe coordinate system. The Keplerian orbits of six stars, as they were determined in this thesis,are overplotted onto the image. Arrows indicate the locations of the respective stars and theirdirection of motion.ZusammenfassungZiel der vorliegenden Doktorarbeit war es, neue Erkenntnisse ¨uber die Struktur, Zusam-mensetzung und Dynamik des zentralen Sternhaufens unserer Milchstraße zu gewinnen. ImMittelpunkt unserer Analysen stand dabei vor allem die Natur der Konzentration einiger Mil-lionen Sonnenmassen dunkler Materie im Zentrum dieses Haufens, bei welcher es sich vermut-lich um ein supermassives Schwarzes Loch handelt.
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Publicat de
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Publié le
01 ianuarie 2004
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Limba
German
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Dimensiunea documentului
10 Mo