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    Vortrag Mertsch

    Uploaded by

    Kiran Adhikari
    This document outlines several potential master's thesis topics in astroparticle physics supervised by Prof. Dr. Philipp Mertsch. The topics include: modeling the interaction of plasma waves and cosmic rays to reproduce the gamma-ray halo around the pulsar Geminga; investigating whether recent AMS-02 cosmic ray antiproton data can be explained by dark matter annihilation after accounting for effects of solar wind; and applying new statistical methods using optimal linear estimation to Galactic diffuse emission data to search for any residual excesses. Prerequisites for these topics include relevant coursework and experience with coding in languages like C++ and Python.

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    Vortrag Mertsch

    Uploaded by

    Kiran Adhikari
    47 views12 pages
    This document outlines several potential master's thesis topics in astroparticle physics supervised by Prof. Dr. Philipp Mertsch. The topics include: modeling the interaction of plasma waves and cosmic rays to reproduce the gamma-ray halo around the pulsar Geminga; investigating whether recent AMS-02 cosmic ray antiproton data can be explained by dark matter annihilation after accounting for effects of solar wind; and applying new statistical methods using optimal linear estimation to Galactic diffuse emission data to search for any residual excesses. Prerequisites for these topics include relevant coursework and experience with coding in languages like C++ and Python.

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    This document outlines several potential master's thesis topics in astroparticle physics supervised by Prof. Dr. Philipp Mertsch. The topics include: modeling the interaction of plasma waves and cosmic rays to reproduce the gamma-ray halo around the pulsar Geminga; investigating whether recent AMS-02 cosmic ray antiproton data can be explained by dark matter annihilation after accounting for effects of solar wind; and applying new statistical methods using optimal linear estimation to Galactic diffuse emission data to search for any residual excesses. Prerequisites for these topics include relevant coursework and experience with coding in languages like C++ and Python.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    47 views12 pages

    Vortrag Mertsch

    Uploaded by

    Kiran Adhikari
    This document outlines several potential master's thesis topics in astroparticle physics supervised by Prof. Dr. Philipp Mertsch. The topics include: modeling the interaction of plasma waves and cosmic rays to reproduce the gamma-ray halo around the pulsar Geminga; investigating whether recent AMS-02 cosmic ray antiproton data can be explained by dark matter annihilation after accounting for effects of solar wind; and applying new statistical methods using optimal linear estimation to Galactic diffuse emission data to search for any residual excesses. Prerequisites for these topics include relevant coursework and experience with coding in languages like C++ and Python.

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    Master thesis topics 2019/20

    Prof. Dr. Philipp Mertsch


    with Prof. Dr. Michael Krämer and Dr. Andrea Vittino

    TTK, RWTH Aachen University


    8 July 2019

    Philipp Mertsch Master thesis topics 2019/20 8 July 2019 1/9


    Dark matter indirect detection
    • Annihilation or decay of dark matter can produce Standard Model particles
    • Astrophysical sources also accelerate cosmic rays
    • To discriminate, need excellent understanding of the astrophysics
    Gamma-ray halos around pulsar wind nebulae
    Pulsar wind nebulae
    • B-fields of 1012 G
    • e± accelerated to ∼ 100 TeV
    → An ideal laboratory for high-energy astrophysics

    Philipp Mertsch Master thesis topics 2019/20 8 July 2019 3/9


    Gamma-ray halos around pulsar wind nebulae

    Your project
    • Model the interplay of plasma waves and cosmic rays
    • Reproduce the gamma-ray halo around Geminga
    • Investigate global picture in Galaxy

    Philipp Mertsch Master thesis topics 2019/20 8 July 2019 4/9


    Gamma-ray halos around pulsar wind nebulae

    Your project
    • Model the interplay of plasma waves and cosmic rays
    • Reproduce the gamma-ray halo around Geminga
    • Investigate global picture in Galaxy

    Philipp Mertsch Master thesis topics 2019/20 8 July 2019 4/9


    Dark matter searches in cosmic ray antiprotons
    (jointly supervised with Prof. Krämer)
    4
    10
    Proton Voyager
    φ=673 MV AMS-02
    10
    3 CREAM

    E k Flux (GeV m 2 s sr -1)


    -1
    102

    1
    10

    2
    100

    10-1
    10-3 10-2 10-1 100 101 102 103 104 105 106
    E k (GeV)

    Philipp Mertsch Master thesis topics 2019/20 8 July 2019 5/9


    Dark matter searches in cosmic ray antiprotons
    (jointly supervised with Prof. Krämer)
    4
    10
    Proton Voyager
    φ=673 MV AMS-02
    10
    3 CREAM

    E k Flux (GeV m 2 s sr -1)


    -1
    102

    1
    10

    2
    100

    10-1
    10-3 10-2 10-1 100 101 102 103 104 105 106
    E k (GeV)

    Really due to dark matter?

    Philipp Mertsch Master thesis topics 2019/20 8 July 2019 5/9


    Dark matter searches in cosmic ray antiprotons
    (jointly supervised with Prof. Krämer)

    Your project
    • Model the effect of solar wind
    • Interpret latest data from AMS-02 experiment
    → Any room for dark matter?

    Philipp Mertsch Master thesis topics 2019/20 8 July 2019 6/9


    New statistical methods for Galactic diffuse emission

    Philipp Mertsch Master thesis topics 2019/20 8 July 2019 7/9


    New statistical methods for Galactic diffuse emission

    Philipp Mertsch Master thesis topics 2019/20 8 July 2019 7/9


    New statistical methods for Galactic diffuse emission
    Data model: d =Rs +n noise, cov. matrix N

    signal, cov. matrix S

    Optimal linear estimator: L(s) = P(s|d) = N (s − m, D)

    with posterior maximum:

    m = (S −1 + R † N −1 R)−1 R † −1
    N d
    | {z } | {z }
    propagator: D source: j

    Your project
    • Model response operator R
    • Apply to simulation data
    • Apply to real data → any excess left?

    Philipp Mertsch Master thesis topics 2019/20 8 July 2019 8/9


    Prerequisites

    • Course work on
    I “Astroparticle physics”,

    I “The Non-Thermal Universe” or

    I “Neutron Stars, Black Holes and Ultra-High Energy Cosmic Rays”

    would be great!
    • Enthusiasm to learn about the Universe at the highest energies
    • Phenomenological interest
    • Experience with coding most welcome, mostly C++ and python

    Philipp Mertsch Master thesis topics 2019/20 8 July 2019 9/9

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