"Multi-messenger modeling of strongly beamed blazars: potential synergies" by Aditya Tamar

Tuesday 13 Jan 2026, 16:00 → 17:00 Europe/London

There have been recent population studies supporting the idea that blazars, active galactic nuclei with relativistic jets pointing directly at us, that are radio-loud can be the potential source of high-energy astrophysical neutrinos being observed by IceCube. The understanding of neutrino production from these sources, with energies greater than hundreds of TeV, is intimately connected to explaining their multi-wavelength spectra as well. In this talk, ongoing work will be presented in understanding the lepto-hadronic multi-messenger emission for neutrino-candidate blazars, namely PKS 1749+096 which has had a tentative spatial coincidence with two IceCube Gold alerts.  The model presents a self-contained framework for having co-spatial low-, high energy and neutrino emission, using radio observations through very long baseline intereferometry (VLBI) observations as an anchor for localising and modeling the emission region. Lastly, potential avenues for synergies between current and future neutrino and VLBI observations will be discussed.