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HI 21 cm Emission Line Study of Southern Galactic Supernova Remnants
Bon-Chul Koo, Ji-hyun Kang, N. M. McClure-Griffiths
We have searched for HI 21 cm line emission from shocked atomic gas associated with southern supernova remnants (SNRs) using data from the Southern Galactic Plane Survey. Among the…
A Distant Extended Spiral Arm in the Fourth Quadrant of the Milky Way
N. M. McClure-Griffiths, J. M. Dickey, B. M. Gaensler +1
Using data from the Southern Galactic Plane Survey we present a possible distant spiral arm in the fourth quadrant of the Milky Way. The very distinct and cohesive feature can be t…
Magnetic Fields and Ionized Gas in the inner Galaxy: An Outer Scale for Turbulence and the Possible Role of HII Regions
M. Haverkorn, B. M. Gaensler, N. M. McClure-Griffiths +2
We present an analysis of rotation measure (RM) fluctuations from the Test Region of the Southern Galactic Plane Survey (SGPS), along with emission measure (EM) fluctuations in the…
GSH23.0-0.7+117, a neutral hydrogen shell in the inner Galaxy
J. M. Stil, A. R. Taylor, P. G. Martin +3
GSH23.0-0.7+117 is a well-defined neutral hydrogen shell discovered in the VLA Galactic Plane Survey (VGPS). Only the blueshifted side of the shell was detected. The expansion velo…