Optical follow-up of IceCube-190503A with ASAS-SN
ATel #12729; A. Franckowiak (DESY), R. Stein (DESY), B. J. Shappee (IfA-Hawaii), C. S. Kochanek (OSU), K. Z. Stanek (OSU), S. Holmbo (Aarhus), T. W.-S. Holoien (Carnegie Observatories), J. L. Prieto (Diego Portales; MAS), Subo Dong (KIAA-PKU), T. A. Thompson (OSU), J. F. Beacom (OSU)
on 5 May 2019; 02:25 UT
Credential Certification: Anna Franckowiak (anna.franckowiak@desy.de)
Subjects: Optical, Neutrinos
The IceCube neutrino observatory reported the detection of an Extremely High Energy (EHE) neutrino track event IceCube-190503A on 19/05/03 at 17:23:08 UT (see GCN #24378 and https://gcn.gsfc.nasa.gov/notices_amon/42419327_132508.amon).
ASAS-SN triggered ToO observations cover the reported neutrino error circle 2 minutes (from South Africa) and 10 h (from Chile) after the neutrino detection time. We do not identify any promising optical counterparts within the reported 90% neutrino error contour with g-band magnitude < 19 (for the first observation) and g-band magnitude < 18 (for the second observation) .
Follow-up observations with ASAS-SN of the neutrino direction continue.
We would like to thank Las Cumbres Observatory and its staff for their continued support of ASAS-SN. ASAS-SN is funded in part by the Gordon and Betty Moore Foundation through grant GBMF5490 to the Ohio State University, NSF grant AST-1515927, the Mt. Cuba Astronomical Foundation, the Center for Cosmology and AstroParticle Physics (CCAPP) at OSU, the Chinese Academy of Sciences South America Center for Astronomy (CASSACA), and the Villum Fonden (Denmark). For more information about the ASAS-SN project, see http://www.astronomy.ohio-state.edu/asassn/index.shtml.
