Statistical features of multiple Compton scattering in a strong magnetic field

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Statistical features of multiple Compton scattering in a strong magnetic field. / Mushtukov, A. A.; Markozov, I. D.; Suleimanov, V. F.; Nagirner, D. I.; Kaminker, A. D.; Potekhin, A. Y.; Portegies Zwart, S.

In: Physical Review D, Vol. 105, 103027, 24.05.2022.

Research output: Contribution to journal › Article › peer-review

Author

Mushtukov, A. A. ; Markozov, I. D. ; Suleimanov, V. F. ; Nagirner, D. I. ; Kaminker, A. D. ; Potekhin, A. Y. ; Portegies Zwart, S. / Statistical features of multiple Compton scattering in a strong magnetic field. In: Physical Review D. 2022 ; Vol. 105.

BibTeX

@article{99c2958eb0ed4270890823b676fb6e71,

title = "Statistical features of multiple Compton scattering in a strong magnetic field",

abstract = "Compton scattering is a key process shaping spectra formation and accretion flow dynamics in accreting strongly magnetized neutron stars. A strong magnetic field affects the scattering cross section and makes it dependent on photon energy, momentum, and polarization state. Using Monte Carlo simulations, we investigate statistical features of Compton scattering of polarized x-ray radiation in a strong magnetic field. Our analysis is focused on photon gas behavior well inside the scattering region. We take into account the resonant scattering at the fundamental cyclotron frequency, thermal distribution of electrons at the ground Landau level, and bulk velocity of the electron gas. We show that (i) the photons scattered around the cyclotron energy by the electron gas at rest tend to acquire the final energy close to the cyclotron one with very small dispersion measure; (ii) the redistribution of photons within the Doppler core of cyclotron resonance differs significantly from the complete redistribution; (iii) the efficiency of momentum transfer from photons to the electron gas is affected by the temperature of electron gas both for photons at cyclotron energy and below it; (iv) the momentum transfer from photons to the electron gas of nonzero bulk velocity is more efficient in the case of magnetic scattering.",

keywords = "Astrophysics - High Energy Astrophysical Phenomena, High Energy Physics - Phenomenology",

author = "Mushtukov, {A. A.} and Markozov, {I. D.} and Suleimanov, {V. F.} and Nagirner, {D. I.} and Kaminker, {A. D.} and Potekhin, {A. Y.} and {Portegies Zwart}, S.",

year = "2022",

month = may,

day = "24",

doi = "10.1103/PhysRevD.105.103027",

language = "English",

volume = "105",

journal = "Physical review D",

issn = "2470-0010",

publisher = "American Physical Society",

}

RIS

TY - JOUR

T1 - Statistical features of multiple Compton scattering in a strong magnetic field

AU - Mushtukov, A. A.

AU - Markozov, I. D.

AU - Suleimanov, V. F.

AU - Nagirner, D. I.

AU - Kaminker, A. D.

AU - Potekhin, A. Y.

AU - Portegies Zwart, S.

PY - 2022/5/24

Y1 - 2022/5/24

N2 - Compton scattering is a key process shaping spectra formation and accretion flow dynamics in accreting strongly magnetized neutron stars. A strong magnetic field affects the scattering cross section and makes it dependent on photon energy, momentum, and polarization state. Using Monte Carlo simulations, we investigate statistical features of Compton scattering of polarized x-ray radiation in a strong magnetic field. Our analysis is focused on photon gas behavior well inside the scattering region. We take into account the resonant scattering at the fundamental cyclotron frequency, thermal distribution of electrons at the ground Landau level, and bulk velocity of the electron gas. We show that (i) the photons scattered around the cyclotron energy by the electron gas at rest tend to acquire the final energy close to the cyclotron one with very small dispersion measure; (ii) the redistribution of photons within the Doppler core of cyclotron resonance differs significantly from the complete redistribution; (iii) the efficiency of momentum transfer from photons to the electron gas is affected by the temperature of electron gas both for photons at cyclotron energy and below it; (iv) the momentum transfer from photons to the electron gas of nonzero bulk velocity is more efficient in the case of magnetic scattering.

AB - Compton scattering is a key process shaping spectra formation and accretion flow dynamics in accreting strongly magnetized neutron stars. A strong magnetic field affects the scattering cross section and makes it dependent on photon energy, momentum, and polarization state. Using Monte Carlo simulations, we investigate statistical features of Compton scattering of polarized x-ray radiation in a strong magnetic field. Our analysis is focused on photon gas behavior well inside the scattering region. We take into account the resonant scattering at the fundamental cyclotron frequency, thermal distribution of electrons at the ground Landau level, and bulk velocity of the electron gas. We show that (i) the photons scattered around the cyclotron energy by the electron gas at rest tend to acquire the final energy close to the cyclotron one with very small dispersion measure; (ii) the redistribution of photons within the Doppler core of cyclotron resonance differs significantly from the complete redistribution; (iii) the efficiency of momentum transfer from photons to the electron gas is affected by the temperature of electron gas both for photons at cyclotron energy and below it; (iv) the momentum transfer from photons to the electron gas of nonzero bulk velocity is more efficient in the case of magnetic scattering.

KW - Astrophysics - High Energy Astrophysical Phenomena

KW - High Energy Physics - Phenomenology

U2 - 10.1103/PhysRevD.105.103027

DO - 10.1103/PhysRevD.105.103027

M3 - Article

VL - 105

JO - Physical review D

JF - Physical review D

SN - 2470-0010

M1 - 103027

ER -

ID: 105810585