Sökning: "neutronstjärnor"

Visar resultat 1 - 5 av 10 uppsatser innehållade ordet neutronstjärnor.

  1. 1. Towards Automatic Model Atoms from the VALD Atomic Database: from He to U

    Kandidat-uppsats, Uppsala universitet/Teoretisk astrofysik

    Författare :Samuel Hermansson; [2023]
    Nyckelord :r-process; nucleosynthesis; kilonovae; VALD;

    Sammanfattning : The ejecta following the collision and merging of two neutron stars (kilonova) are currently considered promising sites for nucleosynthesis of r-process elements. Since the observed kilonova in 2017, GW2017817, astrophysicists have been working to analyze the collected electromagnetic spectra, trying to identify r-process elements. LÄS MER

  3. 2. Self-consistent dielectric formalism scheme for the paramagnetic electron gas under warm dense matter conditions

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Fotios Kalkavouras; [2022]
    Nyckelord :Warm Dense Matter WDM ; Quantum One-Component plasmas qOCP ; Vashishta-Singwi VS ; Dielectric Formalism;

    Sammanfattning : The present thesis aims to further a somewhat unexplored area of Warm Dense Matter (WDM) physics through the use of tools developed within the dielectric formalism. WDM is an exotic form of matter with densities close to the solid state and temperatures of several eV. 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. Synergies between Gaia, LSST and LISA

    Kandidat-uppsats, Lunds universitet/Astronomi - Genomgår omorganisation

    Författare :Isabella Danaliv; [2020]
    Nyckelord :Gaia; LSST; LISA; telescope; synergies; multi-messenger; Physics and Astronomy;

    Sammanfattning : The scientific development of astronomy today mainly comes from the information that can be obtained via electromagnetic radiation. Today, the Gaia optical telescope is one of the most ambitious space projects man has ever completed. Another optical telescope LSST is designed to complement Gaia. LÄS MER

  7. 5. Studies of Possible QGP Estimators in proton-proton Collisions

    Master-uppsats, Lunds universitet/Partikel- och kärnfysik; Lunds universitet/Fysiska institutionen

    Författare :Anna Önnerstad; [2019]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : This thesis presents studies of three different Quark-Gluon Plasma estimators in proton-proton collisions using what is currently believed to be quark-gluon plasma observables; radial flow, elliptic flow and strangeness enhancement. The three tested estimators were Transverse Spherocity, an altered version of Transverse Spherocity where all p_T was put to one, and a newly developed estimator called Mid-Forward. LÄS MER