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Optimized Dark Matter Searches in Deep Observations of Segue 1 with MAGIC / / by Jelena Aleksić



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Autore: Aleksić Jelena Visualizza persona
Titolo: Optimized Dark Matter Searches in Deep Observations of Segue 1 with MAGIC / / by Jelena Aleksić Visualizza cluster
Pubblicazione: Cham : , : Springer International Publishing : , : Imprint : Springer, , 2016
Edizione: 1st ed. 2016.
Descrizione fisica: 1 online resource (213 p.)
Disciplina: 523.1126
Soggetto topico: Astrophysics
Observations, Astronomical
Astronomy—Observations
Elementary particles (Physics)
Quantum field theory
Astrophysics and Astroparticles
Astronomy, Observations and Techniques
Elementary Particles, Quantum Field Theory
Note generali: "Doctoral Thesis accepted by Universitat Aut ò noma de Barcelona, Barcelona, Spain."
Nota di bibliografia: Includes bibliographical references at the end of each chapters and index.
Nota di contenuto: Introduction -- Dark matter searches -- The MAGIC Telescopes -- Full Likelihood Method -- Dark Matter Searches in Dwarf Spheroidal Galaxy Segue 1 with MAGIC -- Future Prospects -- Conclusions.
Sommario/riassunto: This thesis presents the results of indirect dark matter searches in the gamma-ray sky of the near Universe, as seen by the MAGIC Telescopes. The author has proposed and led the 160 hours long observations of the dwarf spheroidal galaxy Segue 1, which is the deepest survey of any such object by any Cherenkov telescope so far. Furthermore, she developed and completely characterized a new method, dubbed “Full Likelihood”, that optimizes the sensitivity of Cherenkov instruments for detection of gamma-ray signals of dark matter origin. Compared to the standard analysis techniques, this novel approach introduces a sensitivity improvement of a factor of two (i.e. it requires 4 times less observation time to achieve the same result). In addition, it allows a straightforward merger of results from different targets and/or detectors. By selecting the optimal observational target and combining its very deep exposure with the Full Likelihood analysis of the acquired data, the author has improved the existing MAGIC bounds to the dark matter properties by more than one order of magnitude. Furthermore, for particles more massive than a few hundred GeV, those are the strongest constraints from dwarf galaxies achieved by any gamma-ray instrument, both ground-based or space-borne alike.
Titolo autorizzato: Optimized Dark Matter Searches in Deep Observations of Segue 1 with MAGIC  Visualizza cluster
ISBN: 3-319-23123-5
Formato: Materiale a stampa
Livello bibliografico Monografia
Lingua di pubblicazione: Inglese
Record Nr.: 9910254611003321
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Serie: Springer Theses, Recognizing Outstanding Ph.D. Research, . 2190-5053