Essays about: "galaxies"
Showing result 11 - 15 of 84 essays containing the word galaxies.
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11. Finding stars that are likely to be from accreted satellite galaxies
University essay from Lunds universitet/Astrofysik; Lunds universitet/Fysiska institutionenAbstract : The Milky Way galaxy has through its lifetime merged with several smaller galaxies in its surroundings. Merger events like these play an important role in the formation of galaxies and are therefore of great interest to better our understanding of galaxy formation. READ MORE
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12. Searching for direct collapse black holes using the James Webb Space Telescope
University essay from Uppsala universitet/Institutionen för fysik och astronomiAbstract : Recent detections of massive quasars at z > 6 has proven to be an interesting challengefor cosmology given the short time frame that these objects have to reach a certainmass via conventional methods (e.g., galaxy mergers). READ MORE
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13. Starbursts at Cosmic Dawn : Formation of Globular Clusters, Ultra-Faint Dwarfs, and Population III star clusters at z > 6
University essay from Stockholms universitet/Institutionen för astronomiAbstract : In the standard model of cosmology (ΛCDM) the first stars, star clusters, and galaxies are expected to have formed in short bursts of star formation in low-mass dark matter halos at high redshifts (). Up to this point, attempts to predict the properties and abundances of these luminous objects have made use of numerically expensive cosmological simulations. READ MORE
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14. Colliding Galaxies in a (Nut)Shell
University essay from Lunds universitet/Astronomi - Genomgår omorganisation; Lunds universitet/Fysiska institutionenAbstract : Galaxy interactions and mergers are natural recurring events in the current cosmological paradigm, events that often coincide with starbursts and enhanced star formation activity. To understand why that is, one can use idealised (non-cosmological) merger simulations, which provide freedom to recreate specific tidally distorted galaxies, and analysis of the time evolution and underlying physics of the star formation activity at a high spatial resolution. READ MORE
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15. Planes of satellite galaxies
University essay from Lunds universitet/Astronomi - Genomgår omorganisationAbstract : The Planes of Satellites Problem is an open question within the field of galaxy formation. It is based on the observations that the Milky Way's satellites, as well as those around the Andromeda (M31) galaxy, align in planes. READ MORE