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OGLE-IV Transient Search report 12 December 2014

ATel #6810; L. Wyrzykowski, Z. Kostrzewa-Rutkowska, A. Udalski, S. Kozlowski, P. Pietrukowicz, R. Poleski, M. Sitek (Warsaw University Astronomical Observatory, Poland), on behalf of the OGLE team
on 12 Dec 2014; 21:25 UT
Credential Certification: Lukasz Wyrzykowski (wyrzykow@ast.cam.ac.uk)

Subjects: Optical, Supernovae, Transient

The OGLE-IV Transient Detection System (Wyrzykowski et al. 2014, arXiv:1409.1095; Kozlowski et al. 2013) reports the discovery of 12 new on-going transients. Most of them appeared near or on top of apparent galaxies and their light curves resemble those of supernovae near or after their peak brightness.

Name RA(J2000.0) Dec(J2000.0) discovery_JD discovery_Imag Notes
OGLE-2014-SN-179 4:48:48.27 -72:55:57.8 2456994.78756 18.890 1mag 100d long outburst in 2011 at the same location (impostor?)
OGLE-2014-SN-180 6:20:32.00 -70:25:46.0 2456998.85936 23.345
OGLE-2014-SN-181 2:35:01.80 -63:19:47.8 2456996.66163 19.817
OGLE-2014-SN-182 0:27:14.40 -67:01:16.6 2456995.54678 20.733
OGLE-2014-SN-183 5:04:44.31 -78:29:01.4 2456999.76773 20.581
OGLE-2014-SN-184 5:23:02.79 -75:11:10.1 2456999.78270 20.843
OGLE-2014-SN-185 6:22:00.69 -73:42:30.1 2456999.73016 20.321
OGLE-2014-SN-186 5:45:27.59 -75:59:15.1 2456998.80294 19.217
OGLE-2014-SN-187 5:27:24.77 -51:42:05.8 2457000.78459 20.521
OGLE-2014-SN-188 2:00:36.36 -80:14:58.6 2457000.61246 19.258
OGLE-2014-SN-189 5:26:18.07 -66:02:30.3 2457002.72286 17.689 probable CV, blue featureless spectrum (ATEL #6808)
OGLE-2014-SN-190 1:16:40.38 -75:06:04.6 2457003.56425 19.742

Photometric and spectroscopic follow-up is strongly encouraged.

Finding charts and light curves are available here.