Since early 2016, the IceCube collaboration is promptly distributing alerts of high-energy neutrino detections in order to allow follow-up searches for possible counterparts at the neutrino position. Finding such counterparts would provide important clues on the origin of the high-energy neutrinos and, by proxy, on the nature of the high-energy cosmic ray accelerators, one of the most important and long-standing puzzles of high-energy astrophysics. We ask for pointed ToO observation of the HESE (High Energy Starting Events) and EHE (Extremely High Energy) neutrinos detected by IceCube and reported either in pub-lic or in private GCNs. We will employ the best available knowledge of the INTEGRAL instruments and our expertise in multimessenger transient searches to hunt for a possible hard X-ray and gamma-ray counterparts. In absence of a detection, we will set the most stringent upper limits.We intend to promptly communicate the results of our ToOs to the general community, thus supporting additional multiwavelength follow-ups and increasing the visibility of the INTEGRAL contribution to the searches of multimessenger transients.
Publications
Diffuse Galactic emission spectrum between 0.5 and 8.0 MeV - Siegert, Thomas, Berteaud, Joanna,Calore, Francesca,Serpico, Pasquale D.,Weinberger, Christoph (2022-04-01) http://ui.adsabs.harvard.edu/#abs/2022A&A...660A.130S
Primordial black hole dark matter in the context of extra dimensions - Friedlander, Avi, Mack, Katherine J.,Schon, Sarah,Song, Ningqiang,Vincent, Aaron C. (2022-05-01) http://ui.adsabs.harvard.edu/#abs/2022PhRvD.105j3508F
26Al gamma rays from the Galaxy with INTEGRAL/SPI - Pleintinger, Moritz M. M., Diehl, Roland,Siegert, Thomas,Greiner, Jochen,Krause, Martin G. H. (2023-04-01) http://ui.adsabs.harvard.edu/#abs/2023A&A...672A..53P
Temporal Coverage
2019-07-31T21:56:55Z / 2019-08-02T05:06:12Z
Version
1.0
Mission Description
The INTEGRAL (International Gamma-Ray Astrophysics Laboratory) mission, launched by the European Space Agency (ESA) on October 17, 2002, was designed to study high-energy phenomena in the universe. INTEGRAL was operating until february 2025 and it was equipped with three high-energy instruments: the Imager on Board the INTEGRAL Satellite (IBIS), the Spectrometer on INTEGRAL (SPI), and the JEM-X (Joint European Monitor for X-rays). Its Optical Monitoring Camera (OMC) provided optical V-band magnitude measurements, complementing the high-energy observations.
European Space Agency, Savchenko, 2025, 'Proposal for INTEGRAL ToO observations of IceCube neutrinos', 1.0, European Space Agency, https://doi.org/10.57780/esa-oofcw0v
