ASASSN-20oh: Discovery of a Likely Classical Nova in the Large Magellanic Cloud
ATel #14185; K. Z. Stanek (OSU), D. Bersier (LJMU), J. Brimacombe (Coral Towers Observatory), C. S. Kochanek, D. Desai, Z. Way, P. Vallley, T. A. Thompson (OSU), B. J. Shappee (Univ. of Hawaii), T. W.-S. Holoien (Carnegie Observatories), J. L. Prieto (Diego Portales; MAS), Subo Dong (KIAA-PKU), M. Stritzinger (Aarhus)
on 17 Nov 2020; 15:10 UT
Distributed as an Instant Email Notice Novae
Credential Certification: Krzysztof Stanek (stanek.32@osu.edu)
During the ongoing All Sky Automated Survey for SuperNovae (ASAS-SN, Shappee et al. 2014, Kochanek et al. 2017), using data from the quadruple 14-cm "Cassius" telescope, we discovered a bright, new transient source, likely a classical nova, towards the Large Magellanic Cloud.
| Object |
RA (J2000) |
DEC (J2000) |
Disc. UT Date |
Disc. g mag |
| ASASSN-20oh |
04:49:38.262 |
-68:53:50.98 |
2020-11-17.32 |
11.15 |
ASASSN-20oh was discovered in images obtained on UT 2020-11-17.32 at g~11.15. Presently, the location of ASASSN-20ni has been observed by ASAS-SN more than ~4,070 times, since May 2014. We do not detect (g>18.4) this object in subtracted images taken on UT 2020-11-15.85 and before.
Using ASAS-SN Sky Patrol light curve interface (Kochanek et al. 2017), we have retrieved aperture photometry time series at the location of ASASSN-20ni in the last 20 days, and the resulting light curve can be seen here. The complete ASAS-SN V/g-band light curve detects no previous outbursts starting in May 2014.
Follow-up observations, especially spectroscopy, of this likely nova are strongly encouraged.
We would like to thank Las Cumbres Observatory and its staff for their continued support of ASAS-SN. ASAS-SN is funded in part by the Gordon and Betty Moore Foundation through grant GBMF5490 to the Ohio State University, NSF grants AST-1515927 and AST-1908570, the Mt. Cuba Astronomical Foundation, the Center for Cosmology and AstroParticle Physics at OSU, the Chinese Academy of Sciences South America Center for Astronomy, and the Villum Fonden (Denmark).
