Essays about: "Galaxy: disk"

Showing result 11 - 15 of 32 essays containing the words Galaxy: disk.

  1. 11. The Metallicity Structure of the Milky Way Halo II : Characterising the distant halo substructure

    University essay from Uppsala universitet/Observationell astrofysik

    Author : Amanda Byström; [2022]
    Keywords : Milky Way; Galactic archaeology; halo; photometric metallicities; stellar catalogue; Gaia-Enceladus-Sausage; Sagittarius; Pristine survey; metallicity; Gaia mission;

    Abstract : The Milky Way galaxy, like all spiral galaxies, is surrounded by a roughly spherical distribution of stars called the halo. The halo was largely formed when the galaxy merged with smaller galaxies. READ MORE

  3. 12. Dwarf Galaxies in the Galactic Potential as probes of its internal structure

    University essay from Lunds universitet/Astronomi - Genomgår omorganisation

    Author : Arn Marklund; [2022]
    Keywords : Numerical integration; Stellar Streams; Dwarf Galaxies; Dark Matter; Physics and Astronomy;

    Abstract : Satellite galaxies on bound orbits around the Milky Way (MW) are constantly subject to tidal forces from the MW. If the tidal forces are large enough, they may strip the outermost stars of the satellite, that in turn distribute themselves in long elongated stellar streams. READ MORE

  4. 13. The visibility of double neutron star binaries to LISA

    University essay from Lunds universitet/Astronomi - Genomgår omorganisation

    Author : Anatole Storck; [2021]
    Keywords : gravitational waves; LISA; neutron stars; orbital simulations; Runge-Kutta method; Physics and Astronomy;

    Abstract : Double neutron star binaries (DNSBs) in the mHz gravitational wave (GW) regime are an important group of objects which the GW detector LISA will be able to observe. The detection and parametrization of these objects will help develop our current understanding of neutron star formation and evolution. READ MORE

  5. 14. Capture into mean motion resonance

    University essay from Lunds universitet/Astronomi - Genomgår omorganisation

    Author : Kaltrina Kajtazi; [2021]
    Keywords : MMR; Mean motion resonance; Planetary dynamics; First order MMR; Numerical integration with N-body; Physics and Astronomy;

    Abstract : Orbital or mean motion resonance (MMR) occurs when the orbital period ratio between two planets is close to a ratio of small integers. MMR can protect planets from collisions and affects the overall final architecture of the system. READ MORE

  6. 15. The fate of stars born in gas-rich high redshift galaxies

    University essay from Lunds universitet/Astronomi - Genomgår omorganisation

    Author : Floor van Donkelaar; [2021]
    Keywords : Physics and Astronomy;

    Abstract : One of the greatest challenges astronomers are facing today is understanding how galaxies form. We know that the Milky Way is a spiral disk galaxy, similar to many others we see in the sky, therefore the Milky Way is a benchmark for understanding the inner workings of disk galaxies. READ MORE