ASASSN-16ad: ASAS-SN Discovery of A Probable Supernova in KUG 0136+335
ATel #8521; Subo Dong (KIAA-PKU), J. Brimacombe (Coral Towers Observatory), K. Z. Stanek, J. S. Brown, T. W.-S. Holoien, C. S. Kochanek, D. Godoy-Rivera, U. Basu (Ohio State), B. J. Shappee (Hubble Fellow, Carnegie Observatories), J. L. Prieto (Diego Portales; MAS), D. Bersier (LJMU), Ping Chen (KIAA-PKU)
on 9 Jan 2016; 14:14 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Krzysztof Stanek (email@example.com)
Subjects: Optical, Supernovae
During the ongoing All Sky Automated Survey for SuperNovae (ASAS-SN
or "Assassin"), using data from the quadruple 14-cm "Brutus" telescope
in Haleakala, Hawaii, we discovered a new transient source, most
likely a supernova, in the galaxy KUG 0136+335.
ASASSN-16ad (AT 2016F) was discovered in images obtained on UT 2016-01-09.28
at V~16.2 mag. We also detect the object in images taken on UT
2016-01-07.30 (V~16.8) and 2016-01-04.30 (V~17.6). We do not detect
(V>18.0) the object in images taken on UT 2016-01-01.23 and before.
shows the archival SDSS g-band image of the host (left), the ASAS-SN
reference image (middle) and the subtracted image on UT 2016-01-09
(right). The red circle has a radius of 20" and is centered on the
position of the transient in the LCOGT image.
The position of ASASSN-16ad is approximately 14" from the center of
the galaxy KUG 0136+335 (z=0.016138, d=63 Mpc, via NED), giving an
absolute V-band magnitude of approximately -17.9 (m-M=33.98,
A_V=0.134). Properties of the new source and photometry are summarized
in the tables below:
Object RA (J2000) DEC (J2000) Disc. UT Date Disc. Vmag Abs. Mag Offset from Host (")
ASASSN-16ad 01:39:32.03 +33:49:36.05 2016-01-09.28 16.2 -17.9 14
Obs. UT Date V mag
Follow-up observations are encouraged.
We thank LCOGT and its staff for their continued support of
ASAS-SN. ASAS-SN is supported by NSF grant AST-1515927, the Center for
Cosmology and AstroParticle Physics (CCAPP) at OSU, the Mt. Cuba
Astronomical Foundation, George Skestos, and the Robert Martin Ayers
Sciences Fund. For more information about the ASAS-SN project, see the
Homepage and the list of all ASAS-SN