ASAS-SN Discovery of a Possible Galactic Nova ASASSN-18ds
ATel #11348; K. Z. Stanek, C. S. Kochanek, J. V. Shields, T. A. Thompson (OSU), L. Chomiuk, J. Strader (MSU), B. J. Shappee (IfA-Hawaii), T. W.-S. Holoien (Carnegie Observatories), J. L. Prieto (Diego Portales; MAS), Subo Dong (KIAA-PKU), M. Stritzinger (Aarhus)
on 24 Feb 2018; 18:29 UT
Distributed as an Instant Email Notice Novae
Credential Certification: Krzysztof Stanek (firstname.lastname@example.org)
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 new transient source,
possibly a classical nova (could also be a CV), near the
Object RA (J2000) DEC (J2000) Gal l (deg) Gal b (deg) Disc. UT Date Disc. V mag
ASASSN-18ds 17:03:47.509 -38:16:57.14 347.384 1.925 2018-02-24.36 14.3
ASASSN-18ds was discovered in images obtained on UT 2018-02-24.36
at V~14.3. We do not detect (V>17.7) this object in subtracted images
taken on UT 2018-02-22.32 and before.
We have retrieved V-band image subtraction photometry time series
at the location of ASASSN-18ds. No previous outbursts or variability
are detected at the position of ASASSN-18ds since ASAS-SN started
observing this location in March 2016.
Follow-up observations, especially spectroscopy, 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 grant AST-1515927, the Mt. Cuba Astronomical
Foundation, the Center for Cosmology and AstroParticle Physics (CCAPP)
at OSU, the Chinese Academy of Sciences South America Center for
Astronomy (CASSACA), and the Villum Fonden (Denmark).