Circular polarization in PKS 1519-273

dc.contributor.author	Bennett, Wendy
dc.date.accessioned	2007-05-31T18:57:11Z
dc.date.available	2007-05-31T18:57:11Z
dc.date.issued	2007-05-31T18:57:11Z
dc.identifier.uri	http://hdl.handle.net/2092/560
dc.description.abstract	The intra-day variable BL Lac PKS 1519-273 exhibits variations at centimeter wavelengths in total intensity, linear polarization, and circular polarization. The variability is caused by scintillation due to the interstellar medium. PKS 1519-273 displays 4% circular polarization at 4.8 GHz and the variability has persisted as long as the source has been observed. We present observations of this source over several years, showing that the circularly polarized emission is highly variable on micro-arcsecond scales. We determine structural properties of the emission by examining the light curves and associated scintillation theory.	en
dc.format.extent	2097387 bytes
dc.format.mimetype	application/pdf
dc.language.iso	en_US
dc.relation.ispartofseries	DUCURS 2006;2
dc.subject	Radio galaxies	en
dc.subject	Radio sources (Astronomy)	en
dc.subject	Galaxies	en
dc.title	Circular polarization in PKS 1519-273	en
dc.type	Presentation	en

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DUCURS [190]
Poster sessions and presentation from the Drake University Conference on Undergraduate Research in the Sciences held each April at Olmsted Center on the Drake campus.