Sökning: "gravitationsvågor"

Visar resultat 1 - 5 av 13 uppsatser innehållade ordet gravitationsvågor.

  1. 1. Axisymmetric capillary water waves on cylindrical fluid jets

    Master-uppsats, Lunds universitet/Matematik (naturvetenskapliga fakulteten); Lunds universitet/Matematikcentrum

    Författare :Anna-Mariya Otsetova; [2023]
    Nyckelord :Euler equations; Bernoulli boundary condition; Schauder estimates; nonlinear functional analysis; Mathematics and Statistics;

    Sammanfattning : In their paper, Vanden-Broeck, Miloh and Spivack (Wave Motion 27, 1998) describe two limiting behaviours of irrotational, axisymmetric capillary water waves using numerical methods. They found a two-parameter family of nontrivial solutions. Some solutions of small amplitude approach a uniform stream, while others approach a static configuration. LÄS MER

  3. 2. Quantum Gauge Fields in Cosmology: Cosmic Inflation and Gravitational Waves

    Kandidat-uppsats, Lunds universitet/Teoretisk partikelfysik - Geonomgår omorganisation

    Författare :Emma Hermansson; [2022]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : In this thesis, the consequences of introducing Yang-Mills fields into cosmology are investigated. This is done by the effective action approach, in which the coupling constant is allowed to depend on the quantum fields. LÄS MER

  4. 3. Escaping Compact Object Binaries from Globular Clusters

    Kandidat-uppsats, Lunds universitet/Astronomi - Genomgår omorganisation

    Författare :Annie Csomor; [2022]
    Nyckelord :Compact object binaries; binary black holes; BH-NS binaries; escaping binaries; globular clusters; escaping compact object binaries from globular clusters; escaping compact binaries; Physics and Astronomy;

    Sammanfattning : Since 2015, the LIGO-Virgo-KAGRA scientific collaboration (LVK) has detected gravitational waves from more than 90 merging compact object binaries using ground-based interferometric detectors. Compact objects orbiting in binary systems emit gravitational waves leading to a loss of energy. LÄS MER

  5. 4. Searching for signatures of compositeness of the Higgs boson

    Master-uppsats, Lunds universitet/Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation; Lunds universitet/Teoretisk partikelfysik - Geonomgår omorganisation

    Författare :Mårten Bertenstam; [2021]
    Nyckelord :two-Higgs-doublet model; composite Higgs model; composite two-Higgs-doublet model; phase transition; cosmological phase transition; electroweak phase transition; gravitational waves; gravitational wave background; Physics and Astronomy;

    Sammanfattning : In this master thesis we consider some phenomenological aspects of two-Higgs-doublet models, both elementary and composite ones. The emphasis is on calculating and understanding first order phase transitions in such models, constrained to be in agreement with existing collider data on the Higgs sector. LÄS MER

  7. 5. Superradiant axion clouds and their interaction with astrophysical plasma

    Master-uppsats, KTH/Fysik

    Författare :Erik Engstedt; [2021]
    Nyckelord :axions; superradiance; black holes; black hole accretion; astrophysical plasma; axioner; strålningsförstärkning; svarta hål; svart hålansamling; astrofysikalisk plasma;

    Sammanfattning : Axions are one of the best-motivated particles beyond the standard model of particle physics and a promising candidate for dark matter. Through the superradiant instability, axions can extract a significant amount of rotational energy from spinning black holes resulting in dense axion clouds. LÄS MER