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Related papers: Pair emission from bare magnetized strange stars

200 papers

In a recent paper (Ushov, PRL, 80, 230, 1998), it has been claimed that the bare surface of a strange star can emit electron-positron pairs of luminosity \~10^{51} ergs/s for about 10s. If true, obviously, this mechanism may explain the…

Astrophysics · Physics 2008-11-26 Abhas Mitra

We present the results of numerical simulations of stationary, spherically outflowing, electron-positron pair winds, with total luminosities in the range 10^{34}- 10^{42} ergs/s. In the concrete example described here, the wind injection…

Astrophysics · Physics 2008-11-26 A. G. Aksenov , M. Milgrom , V. V. Usov

We present the results of numerical simulations of stationary, spherically outflowing, pair winds, with total luminosities of L=10^{35}- 10^{42} ergs/s. These results have direct relevance to the emission from hot, bare, strange stars,…

Astrophysics · Physics 2009-11-10 A. G. Aksenov , M. Milgrom , V. V. Usov

Neutral stellar core at or over nuclear densities is described by a positive charged baryon core and negative charged electron fluid since they possess different masses and interactions. Based on a simplified model of a gravitationally…

High Energy Astrophysical Phenomena · Physics 2015-05-30 Wen-Biao Han , Remo Ruffini , She-Sheng Xue

The neutrino emission due to formation and breaking of Cooper pairs of protons in superconducting cores of neutron stars is considered with taking into account the electromagnetic coupling of protons to ambient electrons. It is shown that…

High Energy Physics - Phenomenology · Physics 2011-07-19 L. B. Leinson

A new method for calculations of electron-positron pair-creation probabilities in low-energy heavy-ion collisions is developed. The approach is based on the propagation of all one-electron states via the numerical solving of the…

We study Schwinger pair creation of charged particles due to the inhomogeneous electric field created by the thin electron layer at the surface of quark stars (the electrosphere). As suggested earlier, due to the low photon emissivity of…

Astrophysics · Physics 2009-11-11 T. Harko , K. S. Cheng

The resonant process of electron-positron pairproduction by an electron in a subcritical magnetic field has been studied when the pair is produced to exited Landau levels. The spin dependency of the process rate has been analyzed. In the…

High Energy Physics - Phenomenology · Physics 2017-02-14 O. Novak

Recent achievements of bare strange stars are briefly reviewed. A nascent protostrange star should be bare because of strong mass ejection and high temperature after the supernova detonation flame, and a crust can also hardly form except…

Astrophysics · Physics 2016-01-27 R. X. Xu

We calculate numerically the emissivity and surface flux of electron-electron bremsstrahlung radiation from the surface of a bare quark star. The restricted electronic phase space due to the presence of an effective photon mass results in a…

High Energy Astrophysical Phenomena · Physics 2010-01-07 Jean-François Caron , Ariel R. Zhitnitsky

In this Letter we investigate the possible emission of low-energy electron neutrinos and electron-positron pairs of anomalously large multiplicity in close-to-central $pp$ collisions at LHC. The scenario is based on confining SU(2)…

High Energy Physics - Phenomenology · Physics 2015-05-13 Francesco Giacosa , Ralf Hofmann

We consider the thermal emission of photons and electron-positron pairs from the bare quark surface of a hot strange star. The radiation of high-energy (> 20 MeV) equilibrium photons prevails at the surface temperature T_S > 5 x 10^{10} K,…

Astrophysics · Physics 2009-11-06 Vladimir V. Usov

We consider a stationary, spherically outflowing wind consisting of electron-positron pairs and photons. We do not assume thermal equilibrium, and include the two-body processes that occur in such a wind: Moller and Bhaba scattering of…

Astrophysics · Physics 2009-11-10 A. G. Aksenov , M. Milgrom , V. V. Usov

An electron-positron layer can cover the surface of a bare strange star (SS), the electric field in which can excite the vacuum and drive a pair wind by taking away the heat of the star. In order to investigate the pair emission ability of…

High Energy Astrophysical Phenomena · Physics 2021-12-08 Shao-Ze Li , Yun-Wei Yu , He Gao , Zi-Gao Dai , Xiao-Ping Zheng

We investigate a stationary pair production cascade in the outer magnetosphere of an isolated, spinning neutron star. The charge depletion due to global flows of charged particles, causes a large electric field along the magnetic field…

Astrophysics · Physics 2008-11-26 Kouichi Hirotani

Charged particles at the crust of compact stars may be ejected and accelerated by the electric field generated due to the rotation of the magnetized star. For neutron or hybrid stars, the negatively charged particles are usually electrons,…

High Energy Astrophysical Phenomena · Physics 2020-10-28 Debojoti Kuzur , Rupamoy Bhattacharyya , Ritam Mallick

The process of electroproduction of the electron-positron pair by high energy electron in an oriented single crystal is investigated. Two contributions are considered: the direct (one-step) process via the virtual intermediate photon and…

High Energy Physics - Phenomenology · Physics 2009-09-29 V. N. Baier , V. M. Katkov

The emission of $\nu\bar\nu$ pairs off electrons in a polarized ultra-intense electromagnetic (e.g.\ laser) wave field is analyzed. We elaborate on the significance of non-linear electrodynamics effects (i.e., multi-photon processes) and…

High Energy Physics - Phenomenology · Physics 2011-03-22 A. I. Titov , B. Kampfer , H. Takabe , A. Hosaka

The present work theoretically investigates the probability of generation of entangled electron-photon pair in high-energy Compton scattering of unpolarized electrons and photons due to scattering-channel-exchange mechanism. The study…

Quantum Physics · Physics 2021-06-15 Basudev Nag Chowdhury , Sanatan Chattopadhyay

Pulsars, or more generally rotation powered neutron stars, are excellent factories of antimatter in the Galaxy, in the form of pairs of electrons and positrons. Electrons are initially extracted from the surface of the star by the intense…

High Energy Astrophysical Phenomena · Physics 2010-07-28 Pasquale Blasi , Elena Amato
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