Date of Award
Master of Science
Physics and Astronomy
Charles R. Kerton
The Multi-Array Galactic Plane Imaging Survey (MAGPIS) is an ongoing
project to map out the northern Galactic plane in the 21 cm radio continuum.
The survey identified 30 probable supernova remnant
candidates in the Galactic plane from 18° ≤ l ≤ 32°. H I absorption spectra were taken toward these sources using data from
the VLA Galactic Plane Survey (VGPS).
Using both circular and hydrodynamical Galactic rotation models, the
corresponding distances were calculated.
Of the 30 candidates, distances to nine of them were determined, and
another eight sources
had their distances constrained with upper and lower
bounds. Many of these sources have detectable radio recombination line
emission toward them, and the possible nature of these sources is discussed.
Adam Kenneth Johanson
Johanson, Adam Kenneth, "H I absorption spectra toward MAGPIS supernova remnant candidates" (2009). Graduate Theses and Dissertations. 10791.