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  An advanced direction reconstruction technique and application to the observation with H.E.S.S.

Lu, C.-C. (2013). An advanced direction reconstruction technique and application to the observation with H.E.S.S. PhD Thesis, Ruprecht-Karls-Universität, Heidelberg.

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Datensatz-Permalink: https://hdl.handle.net/11858/00-001M-0000-0014-C541-9 Versions-Permalink: https://hdl.handle.net/11858/00-001M-0000-0014-C544-3
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thesis_Chia-Chun_Lu_final.pdf (Verlagsversion), 19MB
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https://hdl.handle.net/11858/00-001M-0000-0014-C543-5
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thesis_Chia-Chun_Lu_final.pdf
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 Urheber:
Lu, Chia-Chun1, Autor           
Hofmann, Werner, Gutachter
Wagner, Stefan, Gutachter
Affiliations:
1Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society, Saupfercheckweg 1, D-69117 Heidelberg, Germany, ou_904550              

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Schlagwörter: Hochenergieastronomie
 Zusammenfassung: The High Energy Stereoscopic system (H.E.S.S.) is an array of five imaging atmospheric Cerenkov telescopes which aims at exploring the high energy non-thermal processes in the universe via detecting veryhigh- energy (VHE) gamma-rays. In this work, an advanced direction reconstruction algorithm which yields better point spread function (PSF) and sensitivity is developed to cope with the complex morphology analysis in the Large Magellanic Cloud (LMC) region. LMC is a satellite galaxy of Milky Way at the distance of 48 kpc. The relatively short distance makes it a good extra-galactic laboratory for astronomical observation. The H.E.S.S. observation focuses on the three targets hosted in this region: the young supernova remnant SN 1987a, the pulsar wind nebula N 157B, and the superbubble 30Dor C. The VHE flux of SN 1987a is predicted at the detectable level for H.E.S.S. but no significant detection is found in the current dataset. An upper limit on the gamma-ray flux is derived for this target. The pulsar wind nebular N 157B is detected, and the spectrum and other physical quantities are derived. The gamma-ray flux shows that it is the most-energetic-ever observed pulsar wind nebula. At the vicinity of N 157B, we find extra !-ray excess towards the direction of 30Dor C. The existance of this source is established by detailed morphology studies and its connection to 30Dor C is discussed.

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Sprache(n): eng - English
 Datum: 2013-04-17
 Publikationsstatus: Angenommen
 Seiten: XIV, 127 S. : Ill., graph. Darst.
 Ort, Verlag, Ausgabe: Heidelberg : Ruprecht-Karls-Universität
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 Art des Abschluß: Doktorarbeit

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