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OGLE-IV Transient Search report 30 March 2015

ATel #7318; L. Wyrzykowski, Z. Kostrzewa-Rutkowska, A. Udalski, S. Kozlowski, I. Soszynski, J. Skowron (Warsaw University Astronomical Observatory, Poland), on behalf of the OGLE team
on 30 Mar 2015; 19:40 UT
Credential Certification: Lukasz Wyrzykowski (wyrzykow@ast.cam.ac.uk)

Subjects: Optical, Supernovae, Transient

The OGLE-IV Transient Detection System (Wyrzykowski et al. 2014, AcA,64,197; Kozlowski et al. 2013) reports the discovery of 18 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-2015-SN-067 5:40:20.72 -72:31:29.3 2457093.60141 20.210
OGLE-2015-SN-068 4:23:58.00 -74:58:41.6 2457092.57387 19.896
OGLE-2015-SN-069 6:13:16.34 -71:15:36.4 2457093.61700 20.593
OGLE-2015-SN-070 4:08:26.56 -71:29:10.5 2457092.51909 19.263
OGLE-2015-SN-071 4:23:08.15 -70:54:32.9 2457097.57535 20.220
OGLE-2015-SN-072 3:37:10.79 -63:57:42.3 2457085.52875 20.200
OGLE-2015-SN-073 4:02:11.32 -64:58:00.1 2457093.51508 18.287
OGLE-2015-SN-074 3:17:28.72 -65:12:10.6 2457087.52881 17.627 aka Gaia15adc
OGLE-2015-SN-075 2:45:38.95 -69:36:41.9 2457090.51659 19.861
OGLE-2015-SN-076 2:20:57.58 -71:14:29.8 2457047.57438 19.999
OGLE-2015-SN-077 2:20:07.11 -64:55:48.8 2457037.60434 20.950
OGLE-2015-SN-078 5:27:24.84 -51:42:06.0 2456992.74206 20.858
OGLE-2015-SN-079 6:25:35.94 -74:22:44.6 2457111.55730 18.939
OGLE-2015-SN-080 4:24:25.09 -63:24:48.0 2457110.49715 20.973
OGLE-2015-SN-081 4:22:57.18 -72:09:47.0 2457104.53623 20.804
OGLE-2015-SN-082 5:44:31.69 -71:38:25.7 2457111.59459 19.931 possible faint host galaxy visible in dense stellar field
OGLE-2015-SN-083 6:12:23.19 -63:16:03.2 2457110.61077 19.154
OGLE-2015-SN-084 6:28:40.80 -69:40:48.8 2457100.61926 17.219 with pre-outburst 100d before

Photometric and spectroscopic follow-up is strongly encouraged.

Finding charts and light curves are available here.