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CMB recombination lines of hydrogen : The differential spectrum. / Dubrovich, V. K.; Grachev, S. I.

In: Astronomy Letters, Vol. 30, No. 10, 10.2004, p. 657-662.

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Harvard

Dubrovich, VK & Grachev, SI 2004, 'CMB recombination lines of hydrogen: The differential spectrum', Astronomy Letters, vol. 30, no. 10, pp. 657-662. https://doi.org/10.1134/1.1808051

APA

Dubrovich, V. K., & Grachev, S. I. (2004). CMB recombination lines of hydrogen: The differential spectrum. Astronomy Letters, 30(10), 657-662. https://doi.org/10.1134/1.1808051

Vancouver

Dubrovich VK, Grachev SI. CMB recombination lines of hydrogen: The differential spectrum. Astronomy Letters. 2004 Oct;30(10):657-662. https://doi.org/10.1134/1.1808051

Author

Dubrovich, V. K. ; Grachev, S. I. / CMB recombination lines of hydrogen : The differential spectrum. In: Astronomy Letters. 2004 ; Vol. 30, No. 10. pp. 657-662.

BibTeX

@article{2a930006c7d74e199d1450f5f52396d4,
title = "CMB recombination lines of hydrogen: The differential spectrum",
abstract = "We have calculated the distortions of the cosmic microwave background (CMB) spectrum in the wavelength range 2-50 cm due to the superposition of the CMB hydrogen recombination radiation in subordinate lines. The level populations were determined by numerically solving the equation of recombination kinetics together with the statistical equilibrium equations for a 60-level model hydrogen atom. The relative distortions are ≈ 10-7-10 -6, with their wavelength dependence having a low-contrast, wavy pattern. However, the contrast increases severalfold and becomes pronounced when passing to the differential distortion spectrum. We study the dependence of the distortions on cosmological parameters.",
keywords = "Cosmic microwave background, Cosmology, Early Universe",
author = "Dubrovich, {V. K.} and Grachev, {S. I.}",
note = "Funding Information: a grant from the President of Russia for Support of Leading Scientific Schools (grant NSh-1088.2003.2) , and the Federal Astronomy Program. Funding Information: This work was supported by the Russian Foundation for Basic Research (project no. 02-02-16535) , Copyright: Copyright 2008 Elsevier B.V., All rights reserved.",
year = "2004",
month = oct,
doi = "10.1134/1.1808051",
language = "English",
volume = "30",
pages = "657--662",
journal = "Astronomy Letters",
issn = "1063-7737",
publisher = "МАИК {"}Наука/Интерпериодика{"}",
number = "10",

}

RIS

TY - JOUR

T1 - CMB recombination lines of hydrogen

T2 - The differential spectrum

AU - Dubrovich, V. K.

AU - Grachev, S. I.

N1 - Funding Information: a grant from the President of Russia for Support of Leading Scientific Schools (grant NSh-1088.2003.2) , and the Federal Astronomy Program. Funding Information: This work was supported by the Russian Foundation for Basic Research (project no. 02-02-16535) , Copyright: Copyright 2008 Elsevier B.V., All rights reserved.

PY - 2004/10

Y1 - 2004/10

N2 - We have calculated the distortions of the cosmic microwave background (CMB) spectrum in the wavelength range 2-50 cm due to the superposition of the CMB hydrogen recombination radiation in subordinate lines. The level populations were determined by numerically solving the equation of recombination kinetics together with the statistical equilibrium equations for a 60-level model hydrogen atom. The relative distortions are ≈ 10-7-10 -6, with their wavelength dependence having a low-contrast, wavy pattern. However, the contrast increases severalfold and becomes pronounced when passing to the differential distortion spectrum. We study the dependence of the distortions on cosmological parameters.

AB - We have calculated the distortions of the cosmic microwave background (CMB) spectrum in the wavelength range 2-50 cm due to the superposition of the CMB hydrogen recombination radiation in subordinate lines. The level populations were determined by numerically solving the equation of recombination kinetics together with the statistical equilibrium equations for a 60-level model hydrogen atom. The relative distortions are ≈ 10-7-10 -6, with their wavelength dependence having a low-contrast, wavy pattern. However, the contrast increases severalfold and becomes pronounced when passing to the differential distortion spectrum. We study the dependence of the distortions on cosmological parameters.

KW - Cosmic microwave background

KW - Cosmology

KW - Early Universe

UR - http://www.scopus.com/inward/record.url?scp=8744263026&partnerID=8YFLogxK

U2 - 10.1134/1.1808051

DO - 10.1134/1.1808051

M3 - Article

AN - SCOPUS:8744263026

VL - 30

SP - 657

EP - 662

JO - Astronomy Letters

JF - Astronomy Letters

SN - 1063-7737

IS - 10

ER -

ID: 74195576