Výsledky vyhledávání - "Simon Rozier"

Akademický článek

Collisionless Relaxation from Near-equilibrium Configurations: Linear Theory and Application to Tidal Stripping

Publikováno v: The Astrophysical Journal, Vol 971, Iss 1, p 91 (2024)

Placed slightly out of dynamical equilibrium, an isolated stellar system quickly returns toward a steady virialized state. We study this process of collisionless relaxation using the matrix method of linear response theory. We show that the full phas

Externí odkaz: https://doaj.org/article/465b3506309945a39fd35d7622b94ee4

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Resonant and non-resonant relaxation of globular clusters

Autor: Christopher W. Hamilton, Simon Rozier, Jean-Baptiste Fouvry, Christophe Pichon

Publikováno v: Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2021, ⟨10.1093/mnras/stab2596⟩

Globular clusters contain a finite number of stars. As a result, they inevitably undergo secular evolution (`relaxation') causing their mean distribution function (DF) to evolve on long timescales. On one hand, this long-term evolution may be interpr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::82cb1f7db905413b2e68a44bf6f23121
https://doi.org/10.1093/mnras/stab2596

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A linear stability study of stellar rotating spheres

Autor: Jean-Baptiste Fouvry, Douglas C. Heggie, Christophe Pichon, Simon Rozier, Anna Lisa Varri, Philip G. Breen

Publikováno v: Proceedings of the International Astronomical Union. 14:494-497

Recent observations of globular clusters imposed major revisions to the previous paradigm, in which they were considered to be isotropic in velocity space and non-rotating. However, the theory of collisionless spheroids with some kinematic richness h

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::394fb3d02cf6286354b4e5aaa69f48a4
https://doi.org/10.1017/s1743921319007233

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Structure formation and microlensing with axion miniclusters

Autor: Simon Rozier, David J. E. Marsh, Jérémie Quevillon, Malcolm Fairbairn

Publikováno v: Physical Review D
Physical Review D, American Physical Society, 2018, 97 (8), pp.083502. ⟨10.1103/PhysRevD.97.083502⟩
Phys.Rev.D
Phys.Rev.D, 2018, 97 (8), pp.083502. ⟨10.1103/PhysRevD.97.083502⟩
Phys.Rev.D, 2018, 97 (8), pp.083502. 〈10.1103/PhysRevD.97.083502〉

If the symmetry breaking responsible for axion dark matter production occurs during the radiation-dominated epoch in the early Universe, then this produces large amplitude perturbations that collapse into dense objects known as axion miniclusters. Th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d5513629ebf3c7a6d1c6587a0621408
https://hal.archives-ouvertes.fr/hal-01768113

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