Discovery of A Probable Supernova by the CHASE survey

ATel #8716; Author: L. Gutierrez, G. Pignata, Y. Apostolovski, E. Paillas, S. Varela, F. Bufano, F. Olivares, K. Takats, Tracy Catalan, Catalina Flores, C. Agliozzo (Universidad Andres Bello); M. Hamuy, R. Antezana, L. Gonzalez, F. Carrasco, F. Forster (Universidad de Chile); B. Conuel, Wesleyan University; G. Folatelli and S. Montufar (Instituto de Astrofísica de La Plata) and D. E. Reichart, J. B. Haislip, J. P. Moore, A. P. LaCluyze (University of North Carolina at Chapel Hill).
on 20 Feb 2016; 11:33 UT
Credential Certification: Giuliano Pignata (pignago@gmail.com)

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The CHASE project which is part of the Millennium Institute for Astrophysics (MAS) report the discovery of a probable Supernova on an unfiltered image taken on UT 2016-02-19.05 at V ~17.7 with the 0.41-m 'PROMPT 3' telescope located at CTIO. The candidate is also present in an image taken on UT 2016-02-20.05 at V~17.5. The transient is not detect (V>18.2) in images taken on UT 2016-02-16.12 and before.

The position of transient is approximately 1".9 East 3".7 North from the center of the anonymous apparent host galaxy. Below we summarize the properties of the new source:

 
Name     | RA (J2000)  | Dec (J2000) | Disc. UT Date  |  Disc Mag 
AT2016aj   04:42:24.65   -21:43:27.6   2016-02-19.05    17.7 

 
Obs. UT Date   V mag 
2016-02-16.12  >18.2 
2016-02-19.05   17.7 
2016-02-20.05   17.5