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Distortions of the microwave background spectrum at the epoch of the secondary heating of the cosmic plasma

Искажения микроволнового фонового спектра в период вторичного нагревания космической плазмы

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Il Nuovo Cimento B (1971-1996)

Summary

The Compton distortions of the microwave background spectrum, caused by the interaction of relic quanta with hot electrons, are considered under different assumptions about the characteristic time of energy release. The equation describing the transformation of the relic background spectrum due to the interaction with ultrarelativistic electrons is obtained and solved. A possible role of the cosmological reheating is discussed. The conclusion is drawn that the excess of the relic radiation intensity in the near Wien region can reach 10% only in the case of a very specific combination of secondary-heating parameters which is very unlikely.

Riassunto

Le distorsioni di Compton dello spettro di sottofondo delle microonde, causate dall'interazione dei quanti residui con elettroni caldi, sono, considerate tenendo conto di presupposti differenti riguardo al tempo caratteristico di liberazione dell'energia. Si ottiene e si risolve l’equazione che descrive la trasformazione dello spettro del sottofondo residuo dovuto all’interazione con gli elettroni ultrarelativistici. Si discute un possibile ruolo del riscaldamento cosmologico. Si conclude che l’eccesso d’intensità delle radiazioni 3 residue nella regione vicina a Vienna può raggiungere il 10% solo nel caso di una combinazione molto specifica di parametri di riscaldamento secondario che è molto improbabile.

Резюме

Рассматриваются комптоновские искажения микроволнового фонового спектра, обусловленные взаимодействием реликтовых квантов с горячими электронами, используя различные предположения относительно характеристического времени выделения энергии. Получается и решается уравнение, описывающие преобразование реликтового фона спектра из-за взаимодействия с ультра-релятивистскими электронами. Обсуждается возможная роль космологического вторичного нагревания. Делается утверждение, что избыток интенсивности реликтового излучения в области Вина может достигать 10% только в случае очень специфической комбинации параметров вторичного нагревания, которая является очень маловероятной.

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Authors and Affiliations

  1. Rostov State University, 344090, Rostov on Don, U.S.S.R.

    M. B. Entel & P. D. Naselskij

  2. Space Research Institute Academy of Sciences of the U.S.S.R., 117810, Moscow, U.S.S.R.

    V. N. Lukash

Authors
  1. M. B. Entel
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  2. P. D. Naselskij
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  3. V. N. Lukash
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Traduzione a cura della Redazione.

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Entel, M.B., Naselskij, P.D. & Lukash, V.N. Distortions of the microwave background spectrum at the epoch of the secondary heating of the cosmic plasma. Nuov Cim B 89, 47–63 (1985). https://doi.org/10.1007/BF02728503

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  • DOI: https://doi.org/10.1007/BF02728503

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