Sökning: "Hawking mass"

Hittade 4 uppsatser innehållade orden Hawking mass.

  1. 1. The astronomical consequences of primordial black holes

    Master-uppsats, Lunds universitet/Astronomi - Genomgår omorganisation

    Författare :Loke Lönnblad Ohlin; [2019]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : In the radiation or early matter dominated eras of the Universe, there is a theoretical possibility for the formation of black holes (BHs). These primordial black holes (PBHs) have been thought of as a possible candidate for dark matter (DM), and an attractive one at that as it would explain DM using only baryonic physics. LÄS MER

  3. 2. The Hawking mass for ellipsoidal 2-surfaces in Minkowski and Schwarzschild spacetimes

    Magister-uppsats, Matematiska institutionen

    Författare :Daniel Hansevi; [2008]
    Nyckelord :Hawking mass; Quasi-local mass; General relativity; Ellipsoidal surface;

    Sammanfattning : In general relativity, the nature of mass is non-local. However, an appropriate def-inition of mass at a quasi-local level could give a more detailed characterization ofthe gravitational field around massive bodies. Several attempts have been made tofind such a definition. One of the candidates is the Hawking mass. LÄS MER

  4. 3. Analytical Expressions for the Hawking Mass in slowly rotating Kerr and Kerr-Newman Space-times

    Magister-uppsats, Matematiska institutionen

    Författare :Martin Bengtsson; [2007]
    Nyckelord :Hawking mass; Penrose s inequality; Newman-Penrose formalism; Nester-Witten integral; Kerr space-time; Kerr-Newman space-time;

    Sammanfattning : Penrose's inequality which relates the total mass of a space-time containing a black hole with the area of the event horizon, is a yet unproven condition that is required for the cosmic censorship hypothesis. It is believed that the inequality could be proved by using properties of the Hawking mass. LÄS MER

  5. 4. Hawkingmassa i Kerr-rumtid

    Uppsats för yrkesexamina på grundnivå, Matematiska institutionen

    Författare :Jonas Jonsson Holm; [2004]
    Nyckelord :Applied mathematics; Hawking mass; black holes; quasi-local mass; Newman-Penrose formalism; Tillämpad matematik;

    Sammanfattning : In this thesis we calculate the Hawking mass numerically for surfaces in Kerr spacetime. The Hawking mass is a useful tool for proving the Penrose inequality and the result does not contradict the inequality. It also does not contradict the assumption that the Hawking mass should be monotonic for surfaces in Kerr spacetime. LÄS MER