RTT-150 detected the new brightening of the Gaia16aye binary microlensing system
ATel #9753; I. Khamitov (TUG, Antalya; KFU, Kazan), I. Bikmaev (KFU, AST, Kazan), R. Burenin (IKI, Moscow), S. Grebenev (IKI, Moscow), A. Tkachenko (IKI, Moscow), E. Irtuganov (KFU, AST, Kazan), S. Melnikov (KFU, AST, Kazan), N. Sakhibullin (KFU, AST, Kazan), M. Pavlinsky (IKI, Moscow), R. Sunyaev (IKI, Moscow), H. Esenoglu (TUG, Antalya), D. Koseoglu (TUG, Antalya), V. Bakis (Akdeniz Uni, Antalya), E. Sipahi (Ege Uni, Izmir)
on 12 Nov 2016; 23:12 UT
Distributed as an Instant Email Notice Transients
Credential Certification: Sergei Grebenev (sergei@hea.iki.rssi.ru)
Subjects: Optical, Binary, Transient, Variables, Gravitational Lensing
The 1.5-m Russian-Turkish optical telescope RTT-150 (Antalya, Turkey) monitored the Galactic transient Gaia16aye, suspected to be the first binary microlensing event ever discovered towards the Galactic Plane (ATel #9376, #9507), since Sep. 25, 2016. The TFOSC instrument with a set of BVRI filters was used. The low-resolution spectra were obtained as well. The source demonstrated steady fading (from V~13.95 to 14.95) during nearly a month but became brightening again since the end of October (up to V=14.85 on Nov. 12). The preliminary light curve in the V-filter can be found at http://hea.iki.rssi.ru/rtt150/sci_images/lc.jpg together with the curve of a reference star. The RTT-150 telescope will continue to observe this interesting source. We also encourage its follow-up observations at different wavelengths.
Light curve in the V-filter
