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http://hdl.handle.net/20.500.12386/36026| Title: | 3HSP J095507.9+355101: a flaring extreme blazar coincident in space and time with IceCube-200107A | Authors: | Giommi, P. Padovani, P. Oikonomou, F. Glauch, T. PAIANO, Simona Resconi, E. |
Issue Date: | 2020 | Journal: | ASTRONOMY & ASTROPHYSICS | Number: | 640 | First Page: | L4 | 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. | URI: | http://hdl.handle.net/20.500.12386/36026 | URL: | https://www.aanda.org/articles/aa/full_html/2020/08/aa38423-20/aa38423-20.html http://arxiv.org/abs/2003.06405v4 |
ISSN: | 0004-6361 | DOI: | 10.1051/0004-6361/202038423 | Fulltext: | open |
| Appears in Collections: | 1.01 Articoli in rivista |
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| File | Description | Size | Format | |
|---|---|---|---|---|
| aa38423-20.pdf | 978.27 kB | Adobe PDF | View/Open |
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