Essays about: "Globular Cluster"

Showing result 6 - 10 of 20 essays containing the words Globular Cluster.

  1. 6. Black Hole Dynamics in Stellar Clusters

    University essay from Lunds universitet/Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation; Lunds universitet/Astronomi - Genomgår omorganisation

    Author : Markus Strickert; [2022]
    Keywords : Black Holes; Globular Clusters; Dynamics; Intermediate-mass black holes; Simulations; Physics and Astronomy;

    Abstract : Star clusters can harbour many exotic objects, including black holes (BHs), X-ray binaries and blue straggler stars. In dense stellar environments like globular clusters (GCs), two-body relaxation drives their dynamical evolution, where gravitational interactions between stars strive to equalize their kinetic energy in the cluster. READ MORE

  3. 7. Detecting Transiting Exoplanets in Crowded Fields

    University essay from Lunds universitet/Astronomi - Genomgår omorganisation

    Author : Eddie Larsson; [2022]
    Keywords : Transit method; Globular cluster; crowded environments; exoplanets; transiting exoplanets; Physics and Astronomy;

    Abstract : The first planet orbiting a main-sequence star was discovered in 1995. Since then more than 4000 additional exoplanets have been discovered. This is a rapidly evolving field in astrophysics. One of the most common ways to detect an exoplanet is through transit, as the brightness of the host star decreases. READ MORE

  4. 8. Blue Stragglers from Primordial Binary Evolution

    University essay from Lunds universitet/Astronomi - Genomgår omorganisation

    Author : Emilie Desrochers Karlsson; [2022]
    Keywords : blue stragglers; binary; stars; binary evolution; mass transfer; Physics and Astronomy;

    Abstract : Blue stragglers were first discovered as hotter and more luminous than the turnoff in the globular cluster M3. Their presence is typically explained by the interplay between stellar collisions and mass transfer in binary systems. In this thesis, I study blue stragglers produced from primordial binary evolution. READ MORE

  5. 9. Escaping Compact Object Binaries from Globular Clusters

    University essay from Lunds universitet/Astronomi - Genomgår omorganisation

    Author : Annie Csomor; [2022]
    Keywords : 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;

    Abstract : 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. READ MORE

  6. 10. The retention of black holes in globular clusters

    University essay from Lunds universitet/Astronomi - Genomgår omorganisation; Lunds universitet/Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation

    Author : Wuxueman Liu; [2021]
    Keywords : Physics and Astronomy;

    Abstract : We simulate the velocities of formed Black Holes to determine the fraction of retained Black Holes in 152 Globular Clusters. The model we used for the escape velocity is from Plummer. The scenarios of the natal kick are Neutronstar like kicks and momentum conserving kicks. READ MORE