[ Previous | Next | ADS ]

OGLE-IV Transient Search report 25 September 2017 part 3

ATel #10778; L. Wyrzykowski, M. Gromadzki, A. Hamanowicz, K. Rybicki, J. Klencki, S. Kozlowski, A. Udalski, R. Poleski, M. K. Szymanski, J. Skowron, K. Ulaczyk, M. Pawlak, P. Mroz, I. Soszynski, P. Pietrukowicz, M. Sitek (Warsaw University Astronomical Observatory, Poland), N. Ihanec (University of Nova Gorica)
on 25 Sep 2017; 06:20 UT
Credential Certification: Lukasz Wyrzykowski (wyrzykow@astrouw.edu.pl)

Subjects: Optical, Supernovae, Transient

The OGLE-IV Transient Detection System (Wyrzykowski et al. 2014, AcA,64,197; Kozlowski et al. 2013; Klencki et al. 2016, AcA, 66,15) announces discovery of 3 new on-going transients.

They appeared near or on top of apparent galaxies and their light curves resemble those of supernovae near or after their peak brightness. Most of the candidates were detected with our Rapid Transient Detection System within less than 15 mins from observation: http://ogle.astrouw.edu.pl/ogle4/transients/rapid/rapid.html

Name RA(J2000.0) Dec(J2000.0) discovery_JD discovery_Imag Notes
OGLE17grm 1:20:30.89 -63:30:10.6 2458007.79564 19.318
OGLE17feo 5:00:59.88 -67:42:29.1 2458014.89876 19.083 found as Gaia17bsi
OGLE17grf 5:04:27.37 -70:44:29.8 2458018.88375 17.663 found as Gaia17chg

Photometric and spectroscopic follow-up is strongly encouraged.

We would like to note that since September 2017 OGLE transients are being reported to the IAU's Transient Name Server (TNS). The naming convention of OGLE transients will now follow the names obtained from the TNS, e.g., OGLE17grm is known also as AT2017grm (same letters).

Finding charts and light curves are available here