ASAS-SN Discovery of a Possible LMC Nova ASASSN-17lo
ATel #10701; K. Z. Stanek, C. S. Kochanek, J. V. Shields, T. A. Thompson (OSU), T. W.-S. Holoien, B. J. Shappee (Carnegie Observatories), J. L. Prieto (Diego Portales; MAS), Subo Dong (KIAA-PKU)
on 3 Sep 2017; 16:47 UT
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During the ongoing All Sky Automated Survey for SuperNovae (ASAS-SN,
et al. 2014), using data from the quadruple 14-cm "Cassius"
telescope in CTIO, Chile, we detect a bright, new transient source,
possibly a classical nova (could also be a bright CV), towards the
Large Magellanic Cloud
Object RA (J2000) DEC (J2000) Disc. UT Date Disc. V mag
ASASSN-17lo 05:12:45.09 -69:57:20.1 2017-09-03.326 15.05
ASASSN-17lo was discovered in images obtained on UT 2017-09-03.326 at
V~15.05, and it is also detected in several earlier epochs, starting at
UT 2017-08-29.327 at V~13.9. We do not detect (V>17.6) this object in
subtracted images taken on UT 2017-08-20.35 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-17lo in the last 20 days, and the resulting
light curve can be seen here.
No previous outbursts are detected at the position of ASASSN-17lo
since ASAS-SN started observing this location in April 2014.
Follow-up observations, especially spectroscopy, are strongly encouraged.
We 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 grant AST-1515927, the Mt. Cuba Astronomical Foundation, the
Center for Cosmology and AstroParticle Physics (CCAPP) at OSU, and the
Chinese Academy of Sciences South America Center for Astronomy