VizieR Online Data Catalog: The ASAS-SN catalogue of variable stars - VIII (Bredall+, 2020)
Abstract
As the starting point of this investigation, we compiled a catalogue of all known candidate members of young associations, open clusters, and moving groups within 150pc based on the member lists in literature. Of these sources, 307 are members of the Lupus star-forming region.
The ASAS-SN network consists of 20 telescopes mounted on five fully robotic mounts located at the Haleakala Observatory, the Cerro Tololo International Observatory, McDonald Observatory, and the South African Astrophysical Observatory. Observations span from late 2012 to mid-2018 in the V band, and from late 2017 in the g band, providing ~800 epochs per source on average. Each science image consists of three dithered 90-s exposures taken using 14-cm aperture Nikon telephoto lenses and thinned back-illuminated CCDs with 8.0-arcsec pixels. Obscuration by dust produces reddening as well as extinction, and the relation between these depends on the grain size distribution and composition. Simultaneous multiband observations of dipping events allow this to be investigated and compared between dipper stars and with the ISM. To perform a higher precision examination of individual dimming events and compare with contemporaneous ASAS-SN measurements, we utilize the observations made by TESS during Sector 12 and the LCOGT (Brown et al. 2013PASP..125.1031B) 0.4-m telescopes in the g and i bands. (1 data file).- Publication:
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VizieR Online Data Catalog
- Pub Date:
- July 2023
- Bibcode:
- 2023yCat..74963257B
- Keywords:
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- Stars: variable;
- YSOs;
- Milky Way;
- Spectral types;
- Photometry;
- Optical