Zobrazeno 1 - 10
of 87
pro vyhledávání: '"Pétri, Jérôme"'
Publikováno v:
A&A 691, A349 (2024)
Pulsars are highly magnetized rotating neutron stars, emitting in a broad electromagnetic energy range. Reproducing the observed pulsars population refines our understanding of their formation and evolution scenarios as well as their radiation proces
Externí odkaz:
http://arxiv.org/abs/2406.12612
Autor:
Pétri, Jérôme
Publikováno v:
A&A 687, A169 (2024)
In this paper, we compute a full atlas of radio, X-ray and $\gamma$-ray pulse profiles relying on the force-free magnetosphere model. Our goal is to use such data bank of multi-wavelength profiles to fit a substantial number of radio-loud $\gamma$-ra
Externí odkaz:
http://arxiv.org/abs/2404.05647
Autor:
Pétri, Jérôme
Publikováno v:
A&A 677, A72 (2023)
(Abridged) Following particle trajectories in the intense electromagnetic field of a neutron star is prohibited by the large ratio between the cyclotron frequency $\omega_{\rm B}$ and the stellar rotation frequency $\Omega$. No fully kinetic simulati
Externí odkaz:
http://arxiv.org/abs/2307.07591
Autor:
Tomczak, Ivan, Pétri, Jérôme
Publikováno v:
A&A 676, A128 (2023)
As a follow-up to our previous work on particle acceleration simulation near neutron stars, in this paper, we discuss the impact of radiation reaction on test particles injected into their magnetosphere. We therefore neglect the interaction between p
Externí odkaz:
http://arxiv.org/abs/2306.11482
Current wisdom accounts to the diversity of neutron star observational manifestations to their birth scenarios, influencing their thermal and magnetic field evolution. Among the kind of observed neutron stars, radio pulsars represent by far the large
Externí odkaz:
http://arxiv.org/abs/2206.13837
Autor:
Pétri, Jérôme
Pulsar magnetospheres are filled with relativistic pairs copiously emitting photons detected from the radio wavelengths up to high and very high energies, in the GeV and sometimes in the TeV range. Efficient particle acceleration converts the stellar
Externí odkaz:
http://arxiv.org/abs/2202.12712
Autor:
Pétri, Jérôme
Publikováno v:
A&A 659, A147 (2022)
Abridged. Fast rotating and self-gravitating astrophysical objects suffer strong deformations from centrifugal forces. If moreover they are magnetized, they generate an electromagnetic wave that is perturbed accordingly. When stellar objects are also
Externí odkaz:
http://arxiv.org/abs/2112.07950
Autor:
Pétri, Jérôme
Publikováno v:
A&A 657, A73 (2022)
Gravity shapes stars to become almost spherical because of the isotropic nature of gravitational attraction in Newton's theory. However, several mechanisms break this isotropy like for instance their rotation generating a centrifugal force, magnetic
Externí odkaz:
http://arxiv.org/abs/2110.03929
Autor:
Pétri, Jérôme
Strongly magnetized and fast rotating neutron stars are known to be efficient particle accelerators within their magnetosphere and wind. They are suspected to accelerate leptons, protons and maybe ions to extreme relativistic regimes where the radiat
Externí odkaz:
http://arxiv.org/abs/2102.12449
Autor:
Pétri, Jérôme
Neutron star electromagnetic activity produces pairs that fill their magnetosphere represented to the zeroth order by the force-free approximation. Neither dissipation nor acceleration nor radiation from charged particles is expected from this simpli
Externí odkaz:
http://arxiv.org/abs/2012.07709