ASAS-SN Discovery of A Likely Galactic Nova ASASSN-16ma on the Rise
ATel #9669; K. Z. Stanek, C. S. Kochanek, J. S. Brown, T. W.-S. Holoien, J. Shields (OSU), B. J. Shappee (Hubble Fellow, Carnegie Observatories), J. L. Prieto (Diego Portales; MAS), D. Bersier (LJMU), Subo Dong, S. Bose, Ping Chen (KIAA-PKU), L. Chomiuk, J. Strader (MSU), J. Brimacombe (Coral Towers Observatory)
on 26 Oct 2016; 01:28 UT
Credential Certification: Krzysztof Stanek (firstname.lastname@example.org)
During the ongoing All Sky Automated Survey for SuperNovae (ASAS-SN
or "Assassin"), using data from the quadruple 14-cm "Cassius"
telescope in CTIO, Chile, we detect a new transient source,
most likely a classical nova, near the Galactic center
Object RA (J2000) DEC (J2000) Gal l (deg) Gal b (deg) Disc. UT Date Disc. V mag
ASASSN-16ma 18:20:52.12 -28:22:13.52 4.288 -6.468 2016-10-25.02 13.7
ASASSN-16ma was discovered in images obtained on 2016-10-25.02 at
V~13.7 and proceed to brighten to V~11.6 a day later (UT 2016-10-26.02).
We do not detect (V>17.3) the object in images taken on UT
2016-10-20.04 and before. No previous outbursts are detected at this
location since ASAS-SN started observing the Galactic center in March
Observation Date V mag V err
2016-10-20.04 >17.3 --
2016-10-25.02 13.7 0.02
2016-10-26.02 11.6 0.01
Follow-up observations, especially multi-band photometry and spectroscopy, are strongly encouraged.
We thank LCOGT and its staff for their continued support of
ASAS-SN. ASAS-SN is supported by NSF grant AST-1515927, the Mt. Cuba
Astronomical Foundation, and the Center for Cosmology and AstroParticle
Physics (CCAPP) at OSU.