Essays about: "Atomic Clusters"

Showing result 1 - 5 of 8 essays containing the words Atomic Clusters.

1. 1. 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

3. 2. Colliding Galaxies in a (Nut)Shell

   University essay from Lunds universitet/Astronomi - Genomgår omorganisation; Lunds universitet/Fysiska institutionen

   Author : Jonathan Petersson; [2022]
   Keywords : shell galaxies; simulations; starbursts; quenching; mergers; Physics and Astronomy;

   Abstract : 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

4. 3. Effects of Carbon Functionalization on Hydrogen Oxidation Underneath Graphene Flakes

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

   Author : Johannes Stubbe; [2020]
   Keywords : Graphene; Functionanlization; in situ AP-XPS; water formation; time resolved; catalysts; kinetics; Physics and Astronomy;

   Abstract : Effects of carbon functionalization on the catalytic properties of the space underneath epitaxial graphene flakes on Ir(111) are investigated with Ambient Pressure X-ray Photoelectron Spectroscopy studies of oxygen hydrogenation. The 0. READ MORE

5. 4. Everything you wanted to know about the TPA molecule adsorbed on Au(111)

   University essay from Uppsala universitet/Materialteori

   Author : Pamela H.W. Svensson; [2020]
   Keywords : Everything; you; wanted; to; know; about; TPA; molecule; adsrobed; on; Au; Au 111 ; Triphenylamin; Triphenylamine; DFT; Quantum; Espresso; QE; Generating; Pseudopotentials; NEXAFS; DOS; PDOS; simulations; organic; solar; cell; perovskite; HTM; HCH; NCH; FCH; PP; geometry; optimization;

   Abstract : The electronic properties of Triphenylamine (TPA) in gas phase and adsorbed on gold(111) have been simulated with Quantum Espresso using Density Functional Theory (DFT). To better understand how the presence of a gold surface affects sunlight absorption in the system, partial Density Of States (pDOS) and Near Edge X-ray Absorption Fine Structure (NEXAFS) of the system have been calculated. READ MORE

6. 5. Spectroscopy of the Globular Cluster M30

   University essay from Uppsala universitet/Observationell astrofysik

   Author : Kilian Hikaru Scheutwinkel; [2019]
   Keywords : Spectroscopy; Globular Cluster; M30;

   Abstract : Globular Clusters contain very old metal-poor stars in different evolutionary stages evolved from the same primordial cloud. Signatures of atomic in stellar interiors are studied in the metal-poor GC M30. Furthermore, traces of cluster internal pollution depleting alpha elements e.g. READ MORE