NOAO >   Observing Info >   Approved Programs >   2017B-0239

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Program Information for 2017B-0239


PI: Keith Bechtol, LSST, kbechtol@lsst.org
Address: 933 N. Cherry Avenue, Tucson, AZ 85721

CoI: Masao Sako, U. of Pennsylvania
CoI: Marcelle Soares-Santos, FNAL
CoI: Naoko Kurahashi Neilson, Drexel U.
CoI: Marek Kowalski, DESY
CoI: Anna Franckowiak, DESY
CoI: Eric Neilsen, FNAL

Title: Revealing the Sources of High-Energy Astrophysical Neutrinos

Abstract: The IceCube neutrino observatory opened a new chapter of multi- messenger astronomy in 2013 with the discovery of astrophysical neutrinos at TeV to PeV energies, whose origin is still unknown. Due to their low interaction cross section, neutrinos permit a deep view into otherwise opaque sources, and allow exploration at higher energies than can be probed by electromagnetic radiation. To facilitate the identification of electromagnetic counterparts via time-domain searches, IceCube has begun issuing realtime public alerts for the highest confidence and best-localized neutrino events (median angular uncertainty $leq1.0$~deg). We propose ToO follow-up observations with Blanco/DECam ($gri$ to 24th magnitude in $sim6$ epochs) during time allocated to the Dark Energy Survey (DES) to search for explosive optical transients, such as core collapse supernovae, coincident with 4 neutrino alerts. Plausibly associated sources would then be spectroscopically characterized with Gemini/GMOS-S. By targeting several neutrino events per semester, beginning in 2017B, we can reasonably expect to identify the first individual TeV-PeV neutrino source, or else place meaningful constraints on internal physical processes occurring within core-collapse supernovae and other explosive optical transients.

Program Type: Standard/Extragalactic

Scheduled Nights:
Run 1 (2017B):  CT-4m/DECam -- 1n on Sep 10 2017


National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360



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