Discovery of DLT18i/AT 2018yu with PROMPT and the DLT40 Survey
ATel #11371; D. Sand (Arizona), S. Valenti (UC Davis), S. Wyatt (Arizona), K. A. Bostroem (UC Davis), D. E. Reichart, J. B. Haislip, V. Kouprianov (UNC)
on 1 Mar 2018; 05:30 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: David Sand (dave.j.sand@gmail.com)
Subjects: Optical, Supernovae
Referred to by ATel #: 11374
We report the discovery of DLT18i/AT 2018yu, which was found on 2018 March 1.0 (UT) at r~17.6 mag during the ongoing D<40 Mpc (DLT40) supernova search, using data from the PROMPT5 0.41m telescope located at CTIO. An image with an identical PROMPT telescope at Meckering Observatory, Australia shows the supernova to be present at low significance on Feb 28.6 UT, with r~17.9 mag, with no detection at the same observatory on Feb 27.6. DLT18i is located at RA: 05:22:32.36 DEC: -11:29:13.8, northwest of the host galaxy NGC 1888 (D=24 Mpc). All images were taken in a 'Clear' filter which was calibrated to an approximate r-band magnitude using the USNO-B1 catalog.
The DLT40 survey has moved to an effective 12 hour cadence by utilizing two PROMPT telescopes -- one at CTIO and the other at Meckering Observatory in Western Australia -- and these are the first results reporting using the combined effort. Further observations are encouraged.
