Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"Computational astrophysics"”.
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Machine learning applications in astrophysics: Reduced-order modelling for chemical kinetics and galaxy merger reconstruction with graph neural network
… order modeling of complex chemical networks in astrophysics. For studying galaxy evolution, a conditional graph generative model is developed that can reconstruct the merger histories of observed galaxies from cosmological simulations. This allows identifying progenitors and formation pathways …
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Automatically Optimizing Tree Traversal Algorithms
… science, from data-mining to graphics to computational astrophysics, focus heavily on irregular applications. In contrast to regular applications, which operate over dense matrices and arrays, irregular programs manipulate and traverse complex data structures like trees and graphs. As …
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Black Hole Feedback in New Regimes: Modelling Dwarf Galaxies with Active Galactic Nuclei
Contrary to the standard lore, there is mounting observational evidence that feedback from active galactic nuclei (AGN) may also play a role at the low-mass end of the galaxy population. In this thesis, I explore that possibility employing both isolated and cosmological simulations of dwarf …
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Physical modelling of galaxy clusters and Bayesian inference in astrophysics
This thesis is concerned with the modelling of galaxy clusters, applying these models to real and simulated data using Bayesian inference, and the development of Bayesian inference algorithms applicable to a wide range of astrophysical problems. I present a comparison of mass estimates for $54$ …
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ΣΥΜΒΟΛΗ ΣΤΟ ΠΡΟΒΛΗΜΑ ΤΗΣ ΔΙΑΦΟΡΙΚΗΣ ΠΕΡΙΣΤΡΟΦΗΣ ΕΝΟΣ ΛΕΥΚΟΥ ΝΑΝΟΥ ΜΕ ΑΝΑΠΤΥΞΗ ΚΑΙ ΕΦΑΡΜΟΓΗ ΘΕΩΡΙΩΝ ΔΙΑΤΑΡΑΧΗΣ
THIS THESIS REPRESENTS A THEORETICAL STUDY OF AN EITHER UNIFORM OR NONUNIFORM ROTATION OF A COMPLETELY DEGENERATE ELECTRON GAS CONTINUUM, FORMING A WHITE DWAR. THE AIM OF CHAPTER 1 IS TO SPECIFY THE STRUCTURE DIFFERENTIALLY ROTATING WHITE DWARF BY EXTENDING CHANDRASEKHAR'S METHOD TO INCLUDE UP TO …