Spatial statistics of galactic and cosmic structure

Kamran Ali

Research output: ThesisDoctoral Thesis

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Abstract

The PhD was aimed at analysing geometr ic structure on galactic and supra-galactic scales. A new two-point statistics was developed, suitable to measure the scale (10s of light-years) of star-forming clouds decoupled from other, similarly-sized features in galaxies. Applying this method to space telescope-data resulted in strong support for the so-called violent instability theory for star formation in gas-rich disks. The second part focused on the cosmic large-scale structure (10s of millions of light­ years). Via N-body simulations, it was shown that fundamental parameters describing gravity and dark matter can be efficiently determined by combining standard power-spectrum analysis with modern higher-order statistics.
Original languageEnglish
QualificationDoctor of Philosophy
Awarding Institution
  • The University of Western Australia
Thesis sponsors
Award date6 May 2019
DOIs
Publication statusUnpublished - 2018

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galactic structure
statistics
spectrum analysis
power spectra
star formation
dark matter
telescopes
gravitation
galaxies
stars
gases
simulation

Cite this

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title = "Spatial statistics of galactic and cosmic structure",
abstract = "The PhD was aimed at analysing geometr ic structure on galactic and supra-galactic scales. A new two-point statistics was developed, suitable to measure the scale (10s of light-years) of star-forming clouds decoupled from other, similarly-sized features in galaxies. Applying this method to space telescope-data resulted in strong support for the so-called violent instability theory for star formation in gas-rich disks. The second part focused on the cosmic large-scale structure (10s of millions of light­ years). Via N-body simulations, it was shown that fundamental parameters describing gravity and dark matter can be efficiently determined by combining standard power-spectrum analysis with modern higher-order statistics.",
keywords = "galaxies: star-formation, Galaxies: statistics, Galaxies: structure, Methods: numerical, large-scale structure of the Universe",
author = "Kamran Ali",
year = "2018",
doi = "10.26182/5d088e99adaa8",
language = "English",
school = "The University of Western Australia",

}

Ali, K 2018, 'Spatial statistics of galactic and cosmic structure', Doctor of Philosophy, The University of Western Australia. https://doi.org/10.26182/5d088e99adaa8

Spatial statistics of galactic and cosmic structure. / Ali, Kamran.

2018.

Research output: ThesisDoctoral Thesis

TY - THES

T1 - Spatial statistics of galactic and cosmic structure

AU - Ali, Kamran

PY - 2018

Y1 - 2018

N2 - The PhD was aimed at analysing geometr ic structure on galactic and supra-galactic scales. A new two-point statistics was developed, suitable to measure the scale (10s of light-years) of star-forming clouds decoupled from other, similarly-sized features in galaxies. Applying this method to space telescope-data resulted in strong support for the so-called violent instability theory for star formation in gas-rich disks. The second part focused on the cosmic large-scale structure (10s of millions of light­ years). Via N-body simulations, it was shown that fundamental parameters describing gravity and dark matter can be efficiently determined by combining standard power-spectrum analysis with modern higher-order statistics.

AB - The PhD was aimed at analysing geometr ic structure on galactic and supra-galactic scales. A new two-point statistics was developed, suitable to measure the scale (10s of light-years) of star-forming clouds decoupled from other, similarly-sized features in galaxies. Applying this method to space telescope-data resulted in strong support for the so-called violent instability theory for star formation in gas-rich disks. The second part focused on the cosmic large-scale structure (10s of millions of light­ years). Via N-body simulations, it was shown that fundamental parameters describing gravity and dark matter can be efficiently determined by combining standard power-spectrum analysis with modern higher-order statistics.

KW - galaxies: star-formation

KW - Galaxies: statistics

KW - Galaxies: structure

KW - Methods: numerical

KW - large-scale structure of the Universe

U2 - 10.26182/5d088e99adaa8

DO - 10.26182/5d088e99adaa8

M3 - Doctoral Thesis

ER -