The answers to fundamental science questions in astrophysics, ranging from the history of the expansion of the universe to the sizes of nearby stars, hinge on...
Photometric CCD observations of four Pre-cataclysmic binary candidates
We present preliminary results of differential photometric observations of Abell 65, HZ 9, GD 1401 and BPM 46460, obtained between September and December 2006...
Photometric evidence of superhumps in XTE J1118+48 approaching quiescence
Ellipsoidal lightcurves of XTE J1118+48 during its decline to quiescence are strongly contaminated with a superhump wave. A PDM period analysis yields Psh = 0...
Photometric history of some LBV candidates of M 33.
We present the photometric history of some luminous blue variable candidate stars of M 33. The search was made with the plates collection of the Bulgarian...
Photometric Inference of the Corotation Radii of Ten Barred Galaxies
We have used photometric images of ten barred galaxies in the B and I bands to infer the geometrical and dynamical parameters of their bars: Their length, (R...
Photometric multi-site campaign on massive B stars in the open cluster χ Persei (NGC 884)
In 2005 a photometric observation campaign started on the open cluster χ Persei, involving 13 telescopes spread over the whole northern hemisphere. After two...