title: Ð¡Ð²ÐµÑÑ ÑÐ¾Ð½ÐºÐ¸Ðµ Ð¿ÐµÑÐµÑ Ð¾Ð´Ñ Ð°ÑÐ¾Ð¼Ð¾Ð² Ð¸ Ð¼Ð¾Ð»ÐµÐºÑÐ» ÐºÐ°Ðº Ð¿Ð¾ÑÐµÐ½ÑÐ¸Ð°Ð»ÑÐ½ÑÐµ Ð¸ÑÑÐ¾ÑÐ½Ð¸ÐºÐ¸ ÑÐ¿ÐµÐºÑÑÐ°Ð»ÑÐ½ÑÑ Ð¸ÑÐºÐ°Ð¶ÐµÐ½Ð¸Ð¹ ÑÐµÐ»Ð¸ÐºÑÐ¾Ð²Ð¾Ð³Ð¾ Ð¸Ð·Ð»ÑÑÐµÐ½Ð¸Ñ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Hyperfine splitting of levels of atoms and molecules of the Early Universe as a possible source of spectral distortions of the cosmic microwave background
Creators: name: ÐÐ¾Ð»ÑÐ±ÐµÐ², ÐÐ°ÐºÑÐ¸Ð¼
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2024
Subjects: Ð Ð°Ð½Ð½ÑÑ ÐÑÐµÐ»ÐµÐ½Ð½Ð°Ñ
ÑÐµÐ»Ð¸ÐºÑÐ¾Ð²Ð¾Ðµ Ð¸Ð·Ð»ÑÑÐµÐ½Ð¸Ðµ
ÐºÐ¾ÑÑÐ¼Ð¾Ð»Ð¾Ð³Ð¸Ñ
ÑÐ¿ÐµÐºÑÑÐ¾ÑÐºÐ¾Ð¿Ð¸Ñ
ÑÐ²ÐµÑÑ ÑÐ¾Ð½ÐºÐ¸Ð¹ Ð¿ÐµÑÐµÑ Ð¾Ð´
Ð²ÑÐ°ÑÐ°ÑÐµÐ»ÑÐ½ÑÐ¹ Ð¿ÐµÑÐµÑ Ð¾Ð´
Early Universe
cosmic microwave background
cosmology
spectroscopy
hyperfine transitions
rotational spectroscopy

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description: The work is devoted to the study of the interaction of cosmic microwave background radiation and atoms, molecules and their ions in the Early Universe during the Dark Ages. The work included searching and calculating the characteristics of hyperfine transitions in the ground state in atoms and their ions and molecules and rotational transitions in the ground vibrational state of molecules and their ions, then assessing changes in the intensity of the relict radiation depending on the physical properties of transitions in atoms and molecules of the early universe. Next, the intensity relative to hydrogen was found for all transitions considered and transitions were identified for which the theoretically observed frequency range intersects with the frequency range of the hyperfine transition of the hydrogen atom, which makes the greatest contribution to the distortion of the CMB. The study revealed that all the transitions considered do not significantly change the intensity of the spectrum of the cosmic microwave background radiation relative to hydrogen (less than hundredths of a percent). The data obtained can be used to refine the spectrum of the cosmic microwave background radiation and study the properties of the Early Universe during the Dark Ages.