Overview
- Nominated as an outstanding Ph.D. thesis by the Institut de Física d'Altes Energies, Spain
- Presents the deepest survey of dwarf spheroidal galaxy Segue 1
- Outlines the analysis optimized for dark matter searches with Cherenkov telescopes
- Provides the most constraining bounds to dark matter properties from satellite galaxies above a few hundred GeV
- Includes supplementary material: sn.pub/extras
Part of the book series: Springer Theses (Springer Theses)
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Table of contents (6 chapters)
Keywords
About this book
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.
Authors and Affiliations
About the author
Jelena Aleksić received her PhD from Universitat Autònoma de Barcelona in 2013 for her work with the MAGIC Telescopes. She is currently Postdoctoral Fellow at the Institut de Fisica d’Altes Energies (Barcelona) and member of the Dark Energy Survey (DES) Collaboration.
Bibliographic Information
Book Title: Optimized Dark Matter Searches in Deep Observations of Segue 1 with MAGIC
Authors: Jelena Aleksić
Series Title: Springer Theses
DOI: https://doi.org/10.1007/978-3-319-23123-5
Publisher: Springer Cham
eBook Packages: Physics and Astronomy, Physics and Astronomy (R0)
Copyright Information: Springer International Publishing Switzerland 2016
Hardcover ISBN: 978-3-319-23122-8Published: 17 November 2015
Softcover ISBN: 978-3-319-37071-2Published: 23 August 2016
eBook ISBN: 978-3-319-23123-5Published: 06 November 2015
Series ISSN: 2190-5053
Series E-ISSN: 2190-5061
Edition Number: 1
Number of Pages: XXXVII, 184
Number of Illustrations: 63 b/w illustrations, 53 illustrations in colour
Topics: Astrophysics and Astroparticles, Astronomy, Observations and Techniques, Elementary Particles, Quantum Field Theory