THE NEUTRINO FILTER: CONNECTING BLAZARS WITH ULTRA HIGH ENERGY - - PowerPoint PPT Presentation

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the neutrino filter connecting blazars with ultra high
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THE NEUTRINO FILTER: CONNECTING BLAZARS WITH ULTRA HIGH ENERGY - - PowerPoint PPT Presentation

Apr 22, 2023 152 likes •308 views

THE NEUTRINO FILTER: CONNECTING BLAZARS WITH ULTRA HIGH ENERGY COSMIC RAYS AND ASTROPHYSICAL NEUTRINOS ELISA RESCONI (TUM) in collaboration with P. Padovani, P. Giommi, A. Turcati, S. Coenders, L. Caccianiga, and B. Arsioli, Y.L. Chang. [P.

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THE NEUTRINO FILTER: CONNECTING BLAZARS WITH ULTRA HIGH ENERGY COSMIC RAYS AND ASTROPHYSICAL NEUTRINOS

ELISA RESCONI (TUM)

in collaboration with P. Padovani, P. Giommi, A. Turcati, S. Coenders, L. Caccianiga, and B. Arsioli, Y.L. Chang.

[P. Padovani et al., Mon.Not.Roy.Astron.Soc., 457 (2016) no.4, 3582-3592

  • E. Resconi et al., Mon.Not.Roy.Astron.Soc., Mon.Not.Roy.Astron.Soc. 468 (2017) 597]
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ICRC 2017 - NU007 E. RESCONI

ICECUBE NEUTRINOS

2

All HE neutrinos, 6 - 7 years All HE neutrinos, E ≥ 60 TeV & ϑ ≤ 20o

ν

The IceCube Coll, PoS(ICRC2017) 998

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ICRC 2017 - NU007 E. RESCONI

HIGH ENERGY SOURCES: 3FHL

3

3FHL, all [A. Dominguez, highlight talk, ICRC2017] 3FHL, HBL Y.L Chang, B. Arsioli,

  • P. Giommi

γ

Third Catalog of Hard Fermi-LAT Sources (3FHL)

e-Print: arXiv:1702.00664

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ICRC 2017 - NU007 E. RESCONI

Q1: NEUTRINOS WITH SOME (AT LEAST ONE) PHOTON COUNTERPART? ∃c(ϑν) = true

3FHL

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ICRC 2017 - NU007 E. RESCONI

Q1: NEUTRINOS WITH AT LEAST ONE H.E. COUNTERPART?

5

[P. Padovani et al., MNRAS, 2016]

trial corrected: 1.4% (2.2σ)

3FHL

preliminary trial corrected: 0.28% (2.8σ)

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ICRC 2017 - NU007 E. RESCONI

Q1: NEUTRINOS WITH AT LEAST ONE H.E. COUNTERPART?

6 6y, HESE

preliminary preliminary trial corrected: 20% trial corrected: 0.28% (2.8σ)

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ICRC 2017 - NU007 E. RESCONI

Q2: ARE NEUTRINO FILTERED SOURCES ALSO UHECR SOURCES?

(ν → γ) Fγ neutsino filtfr \(ν → γ) Fγ complement

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ICRC 2017 - NU007 E. RESCONI

NEUTRINO FILTER

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ICRC 2017 - NU007 E. RESCONI

NEUTRINO FILTER TO UHECR

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ICRC 2017 - NU007 E. RESCONI

NEUTRINO FILTER TO UHECT: PROBABILITIES

2FHL, 4 years HESE, 2.9 σ (trial corrected) 50 GeV

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ICRC 2017 - NU007 E. RESCONI

NEUTRINO FILTER TO UHECT: PROBABILITIES

3FHL, 4 years HESE, 3.35 σ (trail corrected)

preliminary preliminary

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ICRC 2017 - NU007 E. RESCONI

NEUTRINO FILTER TO UHECT: PROBABILITIES

3FHL, 6years HESE, 2.3 σ (trial corrected)

preliminary preliminary

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ICRC 2017 - NU007 E. RESCONI

NEUTRINO FILTER TO UHECR BEST

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ICRC 2017 - NU007 E. RESCONI

SUMMARY

▸ The IceCube neutrinos are a natural challenge ▸ The 3FHL strengthen the hint of a possible connection neutrinos -

HBLs

▸ Hint not confirmed with the new HESE data ▸ Neutrino filter effective to pin down candidates for UHECRs ▸ The new years of HESE show an under-fluctuation ▸ Interesting but inconclusive ▸ more data needed!!