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astro-ph.SR2012
Low-frequency GMRT observations of the magnetic Bp star HR Lup (HD 133880)
Samuel J. George, Ian R. Stevens
We present radio observations of the magnetic chemically peculiar Bp star HR Lup (HD 133880) at 647 and 277 MHz with the GMRT. At both frequencies the source is not detected but we…
astro-ph.SR2009
Is Shedir Variable?
Samuel J. George, Ian R. Stevens, Steven A. Spreckley
Before the age of modern photographic and CCD observations alpha Cassiopeiae was labelled as a variable star, though this variability has not been seen with modern instrumentation.…