Transients Gaia17bdj, Gaia17bdk, and Gaia17bdm confirmed by Euler imaging
ATel #10360; R. I. Anderson (Department of Physics and Astronomy, The Johns Hopkins University, Baltimore, USA), S. Blanco-Cuaresma, L. Palaversa, F. Barblan, S. Saesen, M. Roelens, T. Semaan, N. Mowlavi, L. Eyer (Department of Astronomy, University of Geneva, Switzerland)
on 9 May 2017; 05:11 UT
Credential Certification: Richard I. Anderson (firstname.lastname@example.org)
Subjects: Optical, Cataclysmic Variable, Microlensing Event, Transient
We report confirmation of Gaia Science Alerts transients Gaia17bdj, Gaia17bdk, and Gaia17bdm. Images were obtained using modified Gunn R-band and Geneva V-band filters on the ECAM instrument installed on the Swiss 1.2m Euler telescope at La Silla Observatory, Chile, on 2017 May 03 between 8 and 9 UT, and on 2017 May 05 between 4 and 5 UT.
Gaia15bdj is a candidate CV (brightened by 4 mag) with alternative ID ASASSN-15Ic and is seen as a faint source in an archival DSS image.
Gaia15bdk is a candidate microlensing event in the Galactic bulge that has brightened by nearly 2 magnitudes and is now rapidly declining in brightness.
Gaia15bdm is a candidate CV with no host apparent in archival DSS images and alternative ID SSS120620:1751-605942.
400x400 pixel cut out images in ECAM modified Gunn R band are available via the links above (N is up, E is left and the scale is 0.215"/pix). The below table provides heliocentric Julian Date - 2,400,000d and magnitudes.
||HJD - 2400000
The photometric calibrations was performed using the Cambridge Photometric Calibration Server (CPCS)
, designed and maintained by Sergey Koposov and Lukasz Wyrzykowski. We acknowledge ESA Gaia, DPAC and the Photometric Science Alerts Team (https://gaia.ac.uk/selected-gaia-science-alerts)