Tau Now

Fargion, Daniele; Oliva, P.

doi:10.1016/j.nuclphysbps.2016.10.028

Cited by 2 publications

(3 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In brief there is little room in doing such a far AGN correlation with present gamma AGN and the very future late UHECR arrivals. Somehow in analogy to AGN precessing jet but at a smaller mass scales let us remind the few-tens solar mass NS-BH tidal disruption, corresponding to a much shorter time scales (milliseconds) feeding and precessing jet that we suggested in GRBs, [23,24]. Therefore we here reconsider and suggest two complete alternative approaches for the UHECR origination; being the second one the most conservative and realistic we would like to note that none of them excludes the other:…”

Section: Time Delay Of Bent and Smeared Uhecrmentioning

confidence: 86%

“…The most dramatic result, in our view, is the absence of the Virgo Cluster. These UHECR maps and anisotropy have found no astronomical meaning for most authors [14] or a tentative correlations based on lightest UHECR courier by us [15], correlation possible also with a few UHE highest energetic IceCube neutrino events. Let us now remind and critically comment the early and the present most popular trend in the UHECR modeling and their motivations for a far edge UHECRs.…”

Section: Introductionmentioning

confidence: 81%

See 1 more Smart Citation

Uncorrelated Far Active Galactic Nuclei Flaring with Their Delayed Ultra High Energy Cosmic Rays Events

Fargion

Oliva

Lucentini

2018

Proceedings of 2016 International Conference on Ultra-High Energy Cosmic Rays (UHECR2016)

View full text Add to dashboard Cite

The most distant Active Galactic Nuclei (AGN), within the allowed Greisen-Zatsepin-Kuzmin (GZK) cut-off radius (≲ 100 Mpc), have been recently candidate by many authors as the best location for the observed Ultra High Energy Cosmic Rays (UHECR) origination. Indeed, the apparent homogeneity and isotropy of recent UHECR signals seems to require a far cosmic isotropic and homogeneous scenario, involving a proton UHECR courier: our galaxy or nearest local group or super galactic plane (ruled by the Virgo cluster) are too near and apparently too anisotropic to be in agreement with the (Pierre Auger Observatory (PAO) and Telescope Array (TA) almost-homogeneous data sample. However, the few and mild UHECR observed clustering, the so called North and South Hot Spots, are smeared in wide (±18 • ) solid angles. Their consequent random walk flight from most far GZK UHECR sources, nearly at 100 Mpc, must be delayed -with respect to a straight AGN photon gamma flaring arrival trajectory -at least by a million years. During this time, the AGN jet blazing signal, its probable axis deflection (such as the helical jet in Mrk 501), its miss alignment or even its almost certain exhaust activity, may lead to a complete misleading correlation between present UHECR events and a much earlier active AGN ejection. UHECR maps may be anyway related to galactic or nearest (Cen A, M82) AGN extragalactic UHECR sources shining in twin Hot Spot. Therefore we defend our (quite different) scenario where UHECR are mostly made by lightest UHECR nuclei originated by nearby AGN sources, or few galactic sources, whose delayed signals are reaching us within few thousand years in the observed smeared sky areas.

show abstract

Section: Time Delay Of Bent and Smeared Uhecrmentioning

confidence: 86%

Section: Introductionmentioning

confidence: 81%

Uncorrelated Far Active Galactic Nuclei Flaring with Their Delayed Ultra High Energy Cosmic Rays Events

Fargion

Oliva

Lucentini

2018

Proceedings of 2016 International Conference on Ultra-High Energy Cosmic Rays (UHECR2016)

View full text Add to dashboard Cite

show abstract

“…4. The first UHECR narrow clustering and its possible correlation have been discussed in a recent work and in the figures and references therein [17]. As soon as the IceCube PeV energy flavor neutrino revolution had occurred and has been analyzed [7], the smeared directionality and the useless correlation of the shower (cascades) events as well as the paucity of highest energy muon neutrino tracks forced us to imagine a very different neutrino astronomies: the crossing or throughgoing µ ones [14].…”

Section: Icecube Neutrinos and Through-going Muonsmentioning

confidence: 99%

UHECR narrow clustering correlating IceCube through-going muons

Fargion

Oliva

Lucentini

et al. 2017

Nuclear and Particle Physics Proceedings

View full text Add to dashboard Cite

The recent UHECR events by AUGER and the Telescope Array (TA) suggested that wide clusterings as the North and South, named Hot Spot, are related to near AGNs such as the one in M82 and Cen A (as most authors and us convened). In the same frame since 2008 we assumed that the UHECR are made by light and lightest nuclei to explain the otherwise embarrassing absence of the huge nearby Virgo cluster, absence due to the fragility and the opacity of lightest nuclei by photo-dissociation from Virgo distances. Moreover UHECR map exhibits a few narrow clustering, some near the galactic plane, as toward SS 433 and on the opposite side of the plane at celestial horizons: we tagged them in 2014 suggesting possible near source active also as a UHE neutrino. Indeed since last year, 2015, highest IceCube trough-going muons, UHE up-going neutrino events at hundreds TeV energy, did show (by two cases over three tagged in North sky) the expected overlapping of UHE neutrinos signals with narrow crowding UHECR. New recent data with higher energy threshold somehow re-confirmed our preliminary proposal offering also new possible sources by a additional correlated UHE-neutrino versus UHE-neutrino and-or with narro

show abstract

Tau Now

Cited by 2 publications

References 20 publications

Uncorrelated Far Active Galactic Nuclei Flaring with Their Delayed Ultra High Energy Cosmic Rays Events

Uncorrelated Far Active Galactic Nuclei Flaring with Their Delayed Ultra High Energy Cosmic Rays Events

UHECR narrow clustering correlating IceCube through-going muons

Contact Info

Product

Resources

About