Nova in the LMC
ATel #4540; L. Wyrzykowski, K. Ulaczyk, A. Udalski, S. Kozlowski (Warsaw University Astronomical Observatory, Poland), on behalf of the OGLE team
on 4 Nov 2012; 19:23 UT
Distributed as an Instant Email Notice Novae
Credential Certification: Lukasz Wyrzykowski (email@example.com)
Subjects: Optical, Nova, Transient
Referred to by ATel #: 4734
We report the detection of a likely nova outburst - OGLE-2012-NOVA-003,
found toward the Large Magellanic Cloud (LMC) in the course of the
OGLE-IV search for transients (Wyrzykowski et al. ATEL #4495), carried out with the Warsaw 1.3-m
Telescope at the Las Campanas Observatory, Chile.
The nova is located at Ra,Dec (J2000.0) = 5:20:21.09 -73:05:43.3. There
is no detection of a progenitor on the reference image, so it must have
been fainter than I>22 mag. The nova was discovered during a
semi-automated search for transients on 2012-11-04.358 UT (HJD =
2456235.85867) at magnitude 13.9 in the I-band.
Given the available OGLE data we can constrain the time of the explosion to
between 2012-10-22.374 (HJD= 2456222.87366, last frame without the nova)
and 2012-10-25.310 (HJD= 2456225.80963, first frame with the nova).
On the first frame the object is saturated with a magnitude between 11 and
12 mag in the I-band.
The data collected so far by the OGLE survey in the I-band are listed below:
2456230.75237 12.929 0.001
2456232.85822 13.338 0.001
2456235.85867 13.928 0.001
The data indicate a fast decline rate with t2~10d and t3~15d.
Photometric and spectroscopic follow-up is strongly encouraged.
Finding chart and light curve are available on the OGLE Transients Search pages.