VizieR Online Data Catalog: ASAS-SN catalog of variable stars (Jayasinghe+, 2018-2020)

This catalogue was compiled using observations taken by the "Brutus" (Haleakala, Hawaii) and "Cassius" (CTIO, Chile) quadruple telescopes between 2013 and 2018 with ~200-600 epochs of observation for each field to a depth of V<~17mag. The field of view of a single ASAS-SN camera is 4.5deg², the pixel scale is 8.0", and the full width at half-maximum (FWHM) is ~2pixels. The ASAS-SN cameras capture three 90s images for every epoch which are merged to improve the signal-to-noise ratio (S/N). ASAS-SN saturates at ~10-11mag depending on the camera and image position (Kochanek+ 2017PASP..129j4502K).

Starting in 2017, ASAS-SN expanded to five units with 20 telescopes. The ASAS-SN telescopes are hosted by the Las Cumbres Observatory (LCO) in Hawaii, Chile, Texas, and South Africa.

Since 2018, ASAS-SN has shifted to using a g-band filter and expanded to 20 cameras on 5 mounts, adding new units in South Africa, Texas, and Chile. The g-band observations added data from the "Payne" (Sutherland, South Africa), "Bohdan" (CTIO, Chile), and "Leavitt" (McDonald, Texas) quadruple telescopes.

(1 data file).