Essays about: "Cosmic Star Formation"

Showing result 1 - 5 of 6 essays containing the words Cosmic Star Formation.

1. 1. Resolving the smallest scale of star formation at Cosmic Noon with JWST : Star-forming clumps in a galaxy lensed by Abell 2744

   University essay from Stockholms universitet/Institutionen för astronomi

   Author : Annalena Pless; [2023]
   Keywords : star formation; star-forming clumps; galaxy evolution;

   Abstract : At higher redshift galaxies exhibit increasingly irregular and clumpy morphologies, withstar-forming clumps dominating the FUV output of their host galaxies thus being inti-mately related to star formation and the formation and evolution of galaxies. This workexamines star-forming clumps in a remarkable, young spiral galaxy at Cosmic Noon witha redshift ofz= 2. READ MORE

3. 2. Void Evolution and Cosmic Star Formation

   University essay from Uppsala universitet/Institutionen för fysik och astronomi

   Author : Joel Wasserman; [2023]
   Keywords : Void; Void Evolution; Cosmic Void; Star Formation Rate; Star Formation History; Cosmic Star Formation; Cosmology; Spherical Evolution Model; SvdW; Vdn; Excursion Set Theory; Excursion Set Formalism; Astrophysics; Astronomy; Cosmic Web; Matter Transfer; Tomrum; Tomrumsutveckling; Kosmiska Tomrum; Stjärnbildningshastighet; Stjärnbildningshistorik; Kosmisk stjärnbildning; Kosmologi; Sfärisk Evolutionsmodell; SvdW; Vdn; Exkursionsset teori; Exkursionsset Formalism; Astrofysik; Astronomi; Kosmiska Spindelnätet; Masstransport;

   Abstract : The rate at which stars have formed throughout the history of theuniverse is not constant, it started out slow, increased until around redshift ∼ 2 when it reversed and became slower again. The reason for this behaviour is still being investigated with various models and simulations usually based upon dark matter halos. READ MORE

4. 3. Origin of blue straggler stars in the Milky Way halo

   University essay from Lunds universitet/Astrofysik; Lunds universitet/Fysiska institutionen

   Author : Adam Brcek; [2023]
   Keywords : Blue Straggler; Galactic Halo; Spectroscopic Surveys; Binary Star Evolution; Mass Transfer; Physics and Astronomy;

   Abstract : Blue straggler stars (BSSs) are exotic stellar objects that appear to be younger than the age of the population they come from suggests. They are observed as the extension of the main sequence stars, beyond the turn-off point. READ MORE

5. 4. 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 astronomi

   Author : Olof Nebrin; [2022]
   Keywords : Cosmology; Galaxy Formation; Globular Clusters; First Stars; Dark Matter; Cosmic Dawn; Reionization; Ultra-Faint Dwarfs;

   Abstract : 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

6. 5. Constraints on the High-Energy Gamma-Ray Spectrum of Nearby Star-Forming Galaxies

   University essay from Stockholms universitet/Fysikum

   Author : Oskar Svenborn; [2021]
   Keywords : Gamma-ray emission; High-Energy astrophysics; Star-Forming Galaxies; Star formation; Cosmic rays; Fermi-LAT.;

   Abstract : The nature of high-energy gamma-ray emission from Star-Forming Galaxies is of utmost importance for understanding both the origin of Cosmic Rays and the high-energy processes that shape galaxy formation. Observations from the gamma-ray telescope Fermi-LAT have detected gamma-ray emission from a handful of nearby Star-Forming Galaxies. READ MORE