TITLE: GCN CIRCULAR NUMBER: 24744 SUBJECT: LIGO/Virgo S190521r: Gaia Photometric Alerts transient candidate DATE: 19/06/04 16:31:05 GMT FROM: Deepak Eappachen at SRON Netherlands Z. Kostrzewa-Rutkowska, D. Eappachen (SRON/RU), S. Hodgkin, A. Delgado, D.L. Harrison, M.van Leeuwen, G. Rixon, A. Yoldas (IoA Cambridge), P.G. Jonker (SRON/RU) on behalf of Gaia Alerts team report the discovery of a transient candidate within the probability skymap of S190521r (LIGO/VIRGO Collaboration GCN 24632): --------------------------------------------------------------------------- Name TNSid Date [TCB] RaDeg DecDeg AlertMag URL ---------------------------------------------------------------------------- Gaia19cbb AT2019gui 2019-06-01T13:45:58 306.02533 32.05174 18.28 http://gsaweb.ast.cam.ac.uk/alerts/alert/Gaia19cbb/ --------------------------------------------------------------------------- candidate QSO brightens by 0.7 mag, the source falls in the high confidence region (within the 2% contour of the bayestar map) Acknowledgements: This work has made use of data from the European Space Agency (ESA) mission Gaia (https://www.cosmos.esa.int/gaia), processed by the Gaia Data Processing and Analysis Consortium (DPAC, https://www.cosmos.esa.int/web/gaia/dpac/consortium). Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement. ZKR, DE, and PGJ acknowledge support from the European Research Council under ERC Consolidator Grant agreement no 647208.