Work

SS433 PeV neutron jet feeding the far TeV gamma beam

Year: 2025

Type: conference-paper

Abstract: SS433 in a well known binary system with an inner (hundreds second light distance) Black Hole, BH, stripping mass from a ten solar mass orbiting companion. The BH and its accretion disk power a thin precessing jet , whose spirals are well observed. Surprisingly a far, (hundred year light distance), disconnected, gamma beam tail, at tens TeV energy, has been recently discovered by Hess, HAWC and LHAASO array. We suggest that rare tens PeV neutron burst jet were expelled from SS433 system, on past last century. Such Ultra high energy, UHE, Pevatron neutron beam might be the source, by their beta decay in flight and by their Inverse Compton Scattering, of the puzzling far, disconnected tens TeV gamma beam. This ultra relativistic PeV neutron could be formed during a rare brightest tidal eruptions in the system when tens PeV protons flare hit the flare ultraviolet thermal photons, making delta resonances. Their decay into tens PeV secondary neutron beam is well compatible with observations. Alternative models seem not much competitive.

Source: International Cosmic Ray Conference

DOI: 10.22323/1.501.0641

Authors: Daniele Fargion, Piergiorgo De Sanctis Lucentini, Sara Turriziani, Daniela Sopin, Maxim Khlopov

Institutions: Astronomical Observatory of Capodimonte, National Institute for Astrophysics

Language: English

Topic: Astrophysics and Cosmic Phenomena

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Funders: Ministry of Science and Higher Education of the Russian Federation, Southern Federal University

Awards: G3739450595, G7843469764