Slide 1Variable Stars and Their Light Curves Arne Henden Director, AAVSO [email protected] Slide 2 Photometry Basics Brightness as a function of time Possible color information…
Slide 1 Slide 2 Annual: 31 Sustaining: 3 ======================== Members from US: 24 Members from Abroad: 10 (from 8 countries) ======================== TOTAL New Members:…
Investigations of the accretion disk structure in SS Cyg using the Doppler tomography technique D.A.Kononov Institute of Astronomy of the RAS Russia, Moscow Introduction…
XRT update Yoshitomo Maeda (ISAS/JAXA), Kai-Wing Chan (GSFC/NASA) and the XRT team Contents Current XRT Performance No significant time evolution/degradation from the launch…