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New Understanding of Galaxies, Quasars and Extra-galactic Shock Features using Optical Spectroscopy and Low-frequency Radio Observations
(2024-06-10)
The study of Galaxy Formation & Evolution serves as a cornerstone in our quest to unravel
the mysteries of the Universe. Galaxies are not only its building blocks, but also the key to
understanding its vast complexities. ...
Galaxy Evolution in a z~3 Protocluster
(2017-07-27)
Environment is known to have a significant impact on the evolution of galaxies. This is most
evident in the local Universe, where the oldest and most massive galaxies are found at the
of massive galaxy clusters. Current ...
Star Formation in LITTLE THINGS Dwarf Galaxies
(2016-04-14)
In this thesis we test and expand our current knowledge of Star Formation Laws (SF laws) in the extreme environment of dwarf irregular galaxies. We focus on the SF characteristics of our 18 galaxies sample, extending current ...
Tracing Large-Scale Structure with Radio Sources
(University of Hertfordshire, 2015-02-04)
In this thesis, I investigate the spatial distribution of radio sources, and quantify their clustering strength over a range of redshifts, up to z _ 2:2, using various forms of the correlation function measured with data ...
The Environmental Dependence of Galaxy Evolution
(University of Hertfordshire, 2013-12-10)
Observations of galaxy environments have revealed numerous correlations associated
with their intrinsic properties. It is therefore clear that if we are to understand the
processes by which galaxies form and evolve, we ...
A Search for High-Redshift Radio Galaxies Within the Epoch of Reionization
(University of Hertfordshire, 2013-06-07)
In this thesis I used a sample of radio galaxies with 1.4GHz radio luminosity, S1.4 > 10mJy,
with the aim of finding high-redshift radio galaxies in the Lockman Hole, ELAIS-N1, ELAISN2,
XMM-LSS and CDFS using near-infrared ...
A Complete Study of Radio Galaxies at z ~ 0.5
(2013-04-10)
In this thesis I investigate the hosts and cluster environments of a sample of 41 radio
galaxies between z = 0.4 and z = 0.6. I use spectroscopic data for a 24 object subsample
to investigate their star formation histories ...
Galaxy Evolution and the Redshift Desert
(2011-04-26)
This thesis explores the evolution of galaxies from the onset of star formation shortly after the Big Bang until the present day. Particular emphasis lies on the redshift range z = 1.4 2.5, the
so-called “redshift ...