Physics Commons^™

Galactic Outflows And Their Correlations With Galaxy Properties At 0.8 < Z < 1.6, Lindsey Whiting

Theses and Dissertations

Out

ows have been shown to be ubiquitous in galaxies between z = 1 and z=2,

and many models and observations have attempted to correlate the absorption line

properties of these out

ows with morphological characteristics of their host galaxies.

In this study, we examined the spectra of 71 galaxies with redshifts 1< z<2, paying

particular attention to the FeII and MgII absorption lines. We plotted the equivalent

width, velocity, and maximum velocity of the absorption features against various

physical properties of the galaxies, obtained from catalogues created by Skelton et

al., (2014) and van der Wel et al., (2012). We conrmed …

The Role Of Thermospheric Neutral Winds In The Mid-Latitude Ionospheric Evening Anomalies, Levan Lomidze

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The Earth's ionosphere, which is the ionized part of the upper atmosphere, plays a very important role in ground- and satellite-based radio communication and navigation. During the last half century, a considerable experimental, theoretical, and modeling effort has been directed towards understanding the physical processes that affect the variation of the ionization in the ionosphere at various spatial and temporal scales. Even though tremendous progress has been made in many directions of ionospheric research, many questions remain to be answered.

One of the intriguing features in the ionosphere is an anomalous evening enhancement that occurs over certain mid-latitude locations, where …

Parker Winds Revisited: An Extension To Disk Winds, Timothy Waters

UNLV Theses, Dissertations, Professional Papers, and Capstones

A simple 1D dynamical model of thermally driven disk winds is proposed, based on the results of recent, 2.5D axi-symmetric simulations. Our formulation of the disk wind problem is in the spirit of the original Parker (1958) and Bondi (1952) problems, namely we assume an elementary flow configuration consisting of an outflow following pre-defined trajectories in the presence of a central gravitating point mass. Viscosity and heat conduction are neglected. We consider two different streamline geometries, both comprised of straight lines in the (x,z)-plane: (i) streamlines that converge to a geometric point located at (x,z)=(0,-d) and (ii) streamlines that emerge …