KAIT Discovery and Robotic Follow-up Observations of a Possible Young SN Candidate in NGC 2735 : PSN J09023787+2556042
ATel #7366; WeiKang Zheng and Alexei V. Filippenko (UC Berkeley)
on 11 Apr 2015; 07:25 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Weikang Zheng (zwk@umich.edu)
Subjects: Optical, Supernovae
Referred to by ATel #: 7368
We report the discovery, with the 0.76-m Katzman Automatic Imaging Telescope (KAIT) at Lick Observatory, of a possible new supernova in the nearby galaxy NGC 2735 (z=0.00777). The new object, dubbed PSN J09023787+2556042 (by the IAU), is located at (J2000.0) coordinates RA = 09:02:37.87, Dec = +25:56:04.2. Following discovery in an unfiltered image obtained at 04:24 UT on 2015 Apr. 11, KAIT autonomously began a sequence of triggered follow-up observations in the U, B, V, R, I, and clear (roughly R) filters beginning only 4 minutes later. Using stars from the USNO-B1 catalog for reference, we measure R~17.9 mag at this time. The target was also marginally detected 2 days earlier on 2015 Apr. 09.22 UT with R~18.4, indicating the object might be young if it is a SN. An finding chart was posted at the following website: http://astro.berkeley.edu/~zwk/findingchart/PSN_J09023787+25560420.jpg
