Sökning: "cluster evolution"

Visar resultat 1 - 5 av 37 uppsatser innehållade orden cluster evolution.

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

   Master-uppsats, Stockholms universitet/Institutionen för astronomi

   Författare :Annalena Pless; [2023]
   Nyckelord :star formation; star-forming clumps; galaxy evolution;

   Sammanfattning : 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. LÄS MER

3. 2. SubKluster: Novel method to bin scaffolds from cereal genomes into subgenomes using substring frequency analysis

   Master-uppsats, Lunds universitet/Examensarbeten i bioinformatik

   Författare :Victor Kalbskopf; [2023]
   Nyckelord :Biology and Life Sciences;

   Sammanfattning : The genome of the Belinda variety of the hexaploid oat (Avena sativa) has recently been sequenced and assembled. This project aims to improve the assembly by clustering the thousands of scaffolds into their three ancestral subgenomes using Principle Component Analysis (PCA) of kmer and repeat-element frequencies. LÄS MER

4. 3. Black Hole Dynamics in Stellar Clusters

   Master-uppsats, Lunds universitet/Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation; Lunds universitet/Astronomi - Genomgår omorganisation

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

   Sammanfattning : 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. LÄS MER

5. 4. On The Run: How Fast Runaway Stars Can Escape From Their Home Cluster?

   Kandidat-uppsats, Lunds universitet/Astronomi - Genomgår omorganisation

   Författare :Anna-Maria Söderman; [2022]
   Nyckelord :star cluster; runaway stars; velocity distribution; Physics and Astronomy;

   Sammanfattning : Galaxies contain a wide variety of star clusters with different properties. Each cluster is a possible source of runaway stars, which can be progenitors of supernovae in other parts of the galaxy than their home cluster. Considering runaway stars in galaxy simulations has shown to increase the galactic feedback. LÄS MER

7. 5. Blue Stragglers from Primordial Binary Evolution

   Kandidat-uppsats, Lunds universitet/Astronomi - Genomgår omorganisation

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

   Sammanfattning : 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. LÄS MER