Initial Images and Analysis of
Two Straight Angle Tailed Galaxies
Kirstin Schillemat, Clarkson University '06

Kirstin presenting her research	Kirstin and adviser Aileen O'Donoghue

Abstract:

   Straight Angle Tailed (SAT) galaxies are a group of tailed radio galaxies that show properties closely related to Wide Angle Tailed and Narrow Angle Tailed galaxies. This research initiates a study to classify these sources by studying two nearly FRII SATs 0124+189 and 0738+441. The observations of these two sources were taken in June of 1995 in the A configuration of the Very Large array at 1.40 GHz or the 20 cm band. The Very Large Array is an array of 27 antennas that uses the principle of radio interferometry to attain a higher resolution.

   This study begins with a description of the Equipartition Energies, namely the minimum Energy and minimum Pressure. Each source showed brightening in the core, and in the jet flows on the same order of magnitude of the WATs in the O’Donoghue study of 1995. It is not clear if these brightening regions are due to instabilities in the jet which reaccelerate electrons or a damming effect from the build up of old particles. The next step following this study would be to make images in the 6 cm band, which would allow for an analysis of the spectral index.

   For more information, contact Dr. Aileen O'Donoghue:

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