VizieR Online Data Catalog: K2 light curve alternative analysis of ASASSN-18bt (Shappee+, 2019)
Abstract
ASASSN-18bt was discovered at RAJ2000=09:06:39.54, DEJ2000=+19:20:17.77 in V-band images obtained by the ASAS-SN unit "Brutus", located on Haleakala in Hawaii on 2018 February 4.410 UT.
The All-Sky Automated Survey for SuperNovae (ASAS-SN; Shappee+ 2014, J/ApJ/788/48) is an ongoing project which uses units of four 14cm lenses on a common mount hosted by the Las Cumbres Observatory global telescope network at multiple sites around the globe. After expanding our network in 2017, we currently have five units located in Hawaii, Chile, Texas, and South Africa, allowing us to observe the entire sky every ~20hr, weather permitting, to a depth of g~18.5mag. As part of the community effort to support K2 Campaign 16, ASAS-SN was monitoring the K2 field with an increased cadence. The effort to monitor the entire K2 field of view multiple times per day was continued through Campaign 17 and will be extended to monitor the TESS fields four to six times per day. We performed forced photometry on the subtracted "Asteroid Terrestrial-impact Last Alert System" (ATLAS) images of ASASSN-18bt as described in Tonry+ (2018PASP..130f4505T). ATLAS scans the entire sky accessible from Hawaii every few days using fully robotic 0.5m f/2 Wright Schmidt telescopes located on the summit of Haleakala and at Mauna Loa Observatory. The ATLAS telescopes use two broad filters: the "cyan" filter (c) covering 420-650nm and the "orange" filter (o) covering 560-820nm. (1 data file).- Publication:
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VizieR Online Data Catalog
- Pub Date:
- January 2020
- DOI:
- 10.26093/cds/vizier.18700013
- Bibcode:
- 2020yCat..18700013S
- Keywords:
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- Photometry;
- Optical;
- Supernovae