TITLE: GCN CIRCULAR NUMBER: 24354 SUBJECT: LIGO/Virgo S190425z: Gaia Photometric Alerts transient candidates DATE: 19/04/30 15:16:32 GMT FROM: Zuzanna Kostrzewa-Rutkowska at SRON Z. Kostrzewa-Rutkowska (SRON/RU), S. Hodgkin, A. Delgado, D.L. Harrison, M. van Leeuwen, G. Rixon, A. Yoldas (IoA Cambridge), D. Eappachen, P.G. Jonker (SRON/RU) on behalf of Gaia Alerts team report the discovery of transient candidates within the probability skymap of S190425z (LIGO/VIRGO Collaboration GCN 24168): --------------------------------------------------------------------------- Name TNSid Date [TCB] RaDeg DecDeg AlertMag URL --------------------------------------------------------------------------- Gaia19bpt AT2019ehz 2019-04-29T06:51:22 212.42448 55.49114 18.49 http://gsaweb.ast.cam.ac.uk/alerts/alert/Gaia19bpt/ Gaia19bps AT2019ehy 2019-04-28T22:13:01 80.97925 -67.87885 15.78 http://gsaweb.ast.cam.ac.uk/alerts/alert/Gaia19bps/ Gaia19bpr AT2019ehx 2019-04-29T04:14:24 83.92087 -66.86490 14.19 http://gsaweb.ast.cam.ac.uk/alerts/alert/Gaia19bpr/ --------------------------------------------------------------------------- Notes: Gaia19bpt - galaxy SDSS J140941.88+552928.1 brightens by 2 mag Gaia19bps - blue source brightens by 0.4 mag Gaia19bpr - HMXB RX J0535.6-6651 brightens by 1 mag 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.