Standard

Angular fluctuations in the cosmic microwave background owing to initial perturbations in the radiation temperature. / Grachev, S. I.

In: Astrophysics, Vol. 50, No. 4, 10.2007, p. 515-524.

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

Harvard

Grachev, SI 2007, 'Angular fluctuations in the cosmic microwave background owing to initial perturbations in the radiation temperature', Astrophysics, vol. 50, no. 4, pp. 515-524. https://doi.org/10.1007/s10511-007-0047-1

APA

Grachev, S. I. (2007). Angular fluctuations in the cosmic microwave background owing to initial perturbations in the radiation temperature. Astrophysics, 50(4), 515-524. https://doi.org/10.1007/s10511-007-0047-1

Vancouver

Grachev SI. Angular fluctuations in the cosmic microwave background owing to initial perturbations in the radiation temperature. Astrophysics. 2007 Oct;50(4):515-524. https://doi.org/10.1007/s10511-007-0047-1

Author

Grachev, S. I. / Angular fluctuations in the cosmic microwave background owing to initial perturbations in the radiation temperature. In: Astrophysics. 2007 ; Vol. 50, No. 4. pp. 515-524.

BibTeX

@article{dd223da2b64c4d8eb6fdd4981d6c5ed7,
title = "Angular fluctuations in the cosmic microwave background owing to initial perturbations in the radiation temperature",
abstract = "A new method is proposed to account for multiple scattering by electrons in calculations of the correlation functions describing the angular fluctuations in the cosmic microwave background radiation (CMBR). The apparatus of the theory of radiative transport with Rayleigh scattering is used. The problem is reduced to solving an integral equation for the vector source function (dependent only on time), along with differential equations for the other quantities (scalar potentials, baryon velocities, etc.) which show up in the problem. The quantities which describe the angular fluctuations in the CMBR (in the temperature and in the polarization) are then calculated by integrating the vector source function along the line of sight. As an illustration, the correlation functions and power spectra are calculated for the case where the fluctuations are produced by some initial gaussian perturbations of the CMBR.",
keywords = "Cosmic microwave background radiation, Cosmology, Early universe",
author = "Grachev, {S. I.}",
note = "Funding Information: This work was supported by RFFI (Russian Foundation for Basic Research) grants No. 05-02-16658 and 06-02- Copyright: Copyright 2007 Elsevier B.V., All rights reserved.",
year = "2007",
month = oct,
doi = "10.1007/s10511-007-0047-1",
language = "English",
volume = "50",
pages = "515--524",
journal = "Astrophysics",
issn = "0571-7256",
publisher = "Wolters Kluwer",
number = "4",

}

RIS

TY - JOUR

T1 - Angular fluctuations in the cosmic microwave background owing to initial perturbations in the radiation temperature

AU - Grachev, S. I.

N1 - Funding Information: This work was supported by RFFI (Russian Foundation for Basic Research) grants No. 05-02-16658 and 06-02- Copyright: Copyright 2007 Elsevier B.V., All rights reserved.

PY - 2007/10

Y1 - 2007/10

N2 - A new method is proposed to account for multiple scattering by electrons in calculations of the correlation functions describing the angular fluctuations in the cosmic microwave background radiation (CMBR). The apparatus of the theory of radiative transport with Rayleigh scattering is used. The problem is reduced to solving an integral equation for the vector source function (dependent only on time), along with differential equations for the other quantities (scalar potentials, baryon velocities, etc.) which show up in the problem. The quantities which describe the angular fluctuations in the CMBR (in the temperature and in the polarization) are then calculated by integrating the vector source function along the line of sight. As an illustration, the correlation functions and power spectra are calculated for the case where the fluctuations are produced by some initial gaussian perturbations of the CMBR.

AB - A new method is proposed to account for multiple scattering by electrons in calculations of the correlation functions describing the angular fluctuations in the cosmic microwave background radiation (CMBR). The apparatus of the theory of radiative transport with Rayleigh scattering is used. The problem is reduced to solving an integral equation for the vector source function (dependent only on time), along with differential equations for the other quantities (scalar potentials, baryon velocities, etc.) which show up in the problem. The quantities which describe the angular fluctuations in the CMBR (in the temperature and in the polarization) are then calculated by integrating the vector source function along the line of sight. As an illustration, the correlation functions and power spectra are calculated for the case where the fluctuations are produced by some initial gaussian perturbations of the CMBR.

KW - Cosmic microwave background radiation

KW - Cosmology

KW - Early universe

UR - http://www.scopus.com/inward/record.url?scp=36749040416&partnerID=8YFLogxK

U2 - 10.1007/s10511-007-0047-1

DO - 10.1007/s10511-007-0047-1

M3 - Article

AN - SCOPUS:36749040416

VL - 50

SP - 515

EP - 524

JO - Astrophysics

JF - Astrophysics

SN - 0571-7256

IS - 4

ER -

ID: 74195401