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Gaia16bgx, Gaia16bhh, Gaia16bhg, Gaia16bhf and Gaia16bgw transients confirmed by Mercator/Maia imaging

ATel #9522; S. Blanco-Cuaresma, T. Semaan, M. Roelens, L. Palaversa, N. Mowlavi, L. Eyer (Department of Astronomy, University of Geneva, Switzerland)
on 21 Sep 2016; 16:59 UT
Credential Certification: Sergi Blanco-Cuaresma (Sergi.Blanco@unige.ch)

Subjects: Optical, Cataclysmic Variable, Supernovae, Transient

We report confirmation of Gaia Science Alerts transients Gaia16bgx, Gaia16bhh, Gaia16bhg, Gaia16bhf and Gaia16bgw. Images were obtained in G and R bands of the Maia instrument mounted to the Flemish 1.2m Mercator telescope at Roque de los Muchachos observatory, La Palma, Canary Islands, Spain, on 2016 September 15-17.

These new sources are near galaxies (except Gaia16bgx, which is close to a radio source) and they are not visible in archival 2MASS and DSS images: Gaia16bgx, Gaia16bhh, Gaia16bhg, Gaia16bhf and Gaia16bgw. MAIA G band 400x400 pixel cut-out image is provided (N is up, E is left and scale is 0.276"/pix).

MJD Gaia16bgx Gaia16bhh Gaia16bhg Gaia16bhf Gaia16bgw
G R G R G R G R G R
57647.2 - ~19.0 ~16.5 ~16.6 ~17.0 - ~17.6 ~17.2 ~17.9 ~18.1
57648.2 - ~18.9 ~16.4 - - ~17.1 ~17.9 ~17.6 - ~17.9
57649.2 ~20.5 ~19.1 - ~16.6 ~17.0 ~17.0 ~17.9 ~17.7 ~18.0 ~18.1


The photometric calibrations were obtained 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 (http://gsaweb.ast.cam.ac.uk/alerts).