SIMBAD references

2020A&A...640L...4G - Astronomy and Astrophysics, volume 640, L4-4 (2020/8-1)

3HSP J095507.9+355101: A flaring extreme blazar coincident in space and time with IceCube-200107A.

GIOMMI P., PADOVANI P., OIKONOMOU F., GLAUCH T., PAIANO S. and RESCONI E.

Abstract (from CDS):

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 multiwavelength investigation, we confirm that the source is a genuine BL Lac. This new detection differs from TXS 0506+056, which is thus far the first source associated with IceCube neutrinos, and is considered a "masquerading" BL Lac. As in the case of TXS 0506+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.

Abstract Copyright: © ESO 2020

Journal keyword(s): neutrinos - radiation mechanisms: non-thermal - galaxies: active - gamma rays: galaxies - BL Lacertae objects: general

Simbad objects: 11

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2021.03.02-05:14:24

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