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OGLE-IV Transient Search report 8 October 2014

ATel #6557; L. Wyrzykowski, Z. Kostrzewa-Rutkowska, A. Udalski, S. Kozlowski, J. Skowron, I. Soszynski (Warsaw University Astronomical Observatory, Poland), on behalf of the OGLE team
on 8 Oct 2014; 19:35 UT
Credential Certification: Lukasz Wyrzykowski (wyrzykow@ast.cam.ac.uk)

Subjects: Optical, Cataclysmic Variable, Nova, Supernovae, Transient

The OGLE-IV Transient Search (Wyrzykowski et al. 2014, Kozlowski et al. 2013) reports the discovery of 7 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. The last one is a likely nova or dwarf nova towards the LMC with no object visible on the reference image down to I=22 mag.

Name RA(J2000.0) Dec(J2000.0) discovery_JD discovery_Imag Notes
OGLE-2014-SN-086 2:50:32.69 -73:07:40.2 2456931.73279 20.043
OGLE-2014-SN-087 4:28:40.41 -62:18:40.9 2456931.77867 20.238 clearly off-centre in a galaxy with AGN
OGLE-2014-SN-088 3:37:15.33 -65:57:39.4 2456932.71907 19.617 likely nuclear transient
OGLE-2014-SN-089 6:09:07.68 -63:13:16.0 2456932.84254 18.893
OGLE-2014-SN-090 4:48:25.02 -65:05:06.0 2456936.75317 20.186
OGLE-2014-SN-091 1:50:31.66 -78:09:06.6 2456936.71700 20.265
OGLE-2014-NOVA-02 6:37:59.08 -72:01:00.0 2456938.87839 17.113 nova or dwarf nova

Photometric and spectroscopic follow-up is strongly encouraged.

Finding charts and light curves are available here.