%0 Generic %1 giommi2020j0955079355101 %A Giommi, P. %A Padovani, P. %A Oikonomou, F. %A Glauch, T. %A Paiano, S. %A Resconi, E. %D 2020 %K IceCube alert assassin-paper blazer neutrino %R 10.1051/0004-6361/202038423 %T 3HSP J095507.9+355101: a flaring extreme blazar coincident in space and time with IceCube-200107A %U http://arxiv.org/abs/2003.06405 %X The uncertainty region of the highly energetic neutrino IceCube200107A includes 3HSP J095507.9+355101 ($z$~=~0.557), an extreme blazar, which was detected in a high, very hard, and variable X-ray state shortly after the neutrino arrival. Following a detailed multi-wavelength investigation, we confirm that the source is a genuine BL Lac, contrary to TXS 0506+056, the first source so far associated with IceCube neutrinos, which is a "masquerading" BL Lac. As in the case of TXS0506+056, 3HSP J095507.9+355101 is also way off the so-called "blazar sequence". We consider 3HSP J095507.9+355101 a possible counterpart to the IceCube neutrino. Finally, we discuss some theoretical implications in terms of neutrino production.

@misc{giommi2020j0955079355101, abstract = {The uncertainty region of the highly energetic neutrino IceCube200107A includes 3HSP J095507.9+355101 ($z$~=~0.557), an extreme blazar, which was detected in a high, very hard, and variable X-ray state shortly after the neutrino arrival. Following a detailed multi-wavelength investigation, we confirm that the source is a genuine BL Lac, contrary to TXS 0506+056, the first source so far associated with IceCube neutrinos, which is a "masquerading" BL Lac. As in the case of TXS0506+056, 3HSP J095507.9+355101 is also way off the so-called "blazar sequence". We consider 3HSP J095507.9+355101 a possible counterpart to the IceCube neutrino. Finally, we discuss some theoretical implications in terms of neutrino production.}, added-at = {2022-06-13T16:54:35.000+0200}, author = {Giommi, P. and Padovani, P. and Oikonomou, F. and Glauch, T. and Paiano, S. and Resconi, E.}, biburl = {https://www.bibsonomy.org/bibtex/2fac6711b6f9e36e56d834e3fba810b89/jnecker}, description = {[2003.06405v4] 3HSP J095507.9+355101: a flaring extreme blazar coincident in space and time with IceCube-200107A}, doi = {10.1051/0004-6361/202038423}, interhash = {a47251aac81766d6b8132c5bb9a9c65c}, intrahash = {fac6711b6f9e36e56d834e3fba810b89}, keywords = {IceCube alert assassin-paper blazer neutrino}, note = {cite arxiv:2003.06405Comment: Accepted for publication in A&A Letters, 8 pages, 4 figures}, timestamp = {2022-06-13T16:54:35.000+0200}, title = {3HSP J095507.9+355101: a flaring extreme blazar coincident in space and time with IceCube-200107A}, url = {http://arxiv.org/abs/2003.06405}, year = 2020 }