Profile of the 9.85-GHz Neutral Hydrogen Line Taking into Account the Zeeman Effect (Computations and Solar Observations)

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Profile of the 9.85-GHz Neutral Hydrogen Line Taking into Account the Zeeman Effect (Computations and Solar Observations). / Dravskikh, A.F.; Peterova, N.G; Topchilo, N.A.

в: Astronomy Reports, Том 63, № 3, 2019, стр. 229–237.

Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование

BibTeX

@article{c39cc62e0b064b4b8e3510ff6db97976,

title = "Profile of the 9.85-GHz Neutral Hydrogen Line Taking into Account the Zeeman Effect (Computations and Solar Observations)",

abstract = "The 9.85-GHz (3.04 cm) line of atomic hydrogen due to the 2 2 P 3/2 –2 2 S 1/2 transition between levels of the hyperfine structure occupies a special place in the complex spectrum of the Sun. This is essentially the only hydrogen line that is expected in the solar radio spectrum. The promising nature of solar observations in the H 3.04 line was first noted in 1952 by Wild, who calculated the line profile using a model for the “quiet” Sun characterized by a weak magnetic field (several Gauss). Computations of this line profile taking into account the strong magnetic fields in solar active regions (hundreds Gauss) are considered here. It is shown that the Zeeman effect leads to appreciable changes in the appearance of the line profile. This may help explain why searches for the H 3.04 line have not led to any detections earlier. New observations of the Sun on the RATAN-600 telescope are analyzed with allowance for the Zeeman effect. ",

author = "A.F. Dravskikh and N.G Peterova and N.A. Topchilo",

note = "Publisher Copyright: {\textcopyright} 2019, Pleiades Publishing, Ltd.",

year = "2019",

doi = "10.1134/S1063772919030028",

language = "English",

volume = "63",

pages = "229–237",

journal = "Astronomy Reports",

issn = "1063-7729",

publisher = "МАИК {"}Наука/Интерпериодика{"}",

number = "3",

}

RIS

TY - JOUR

T1 - Profile of the 9.85-GHz Neutral Hydrogen Line Taking into Account the Zeeman Effect (Computations and Solar Observations)

AU - Dravskikh, A.F.

AU - Peterova, N.G

AU - Topchilo, N.A.

PY - 2019

Y1 - 2019

N2 - The 9.85-GHz (3.04 cm) line of atomic hydrogen due to the 2 2 P 3/2 –2 2 S 1/2 transition between levels of the hyperfine structure occupies a special place in the complex spectrum of the Sun. This is essentially the only hydrogen line that is expected in the solar radio spectrum. The promising nature of solar observations in the H 3.04 line was first noted in 1952 by Wild, who calculated the line profile using a model for the “quiet” Sun characterized by a weak magnetic field (several Gauss). Computations of this line profile taking into account the strong magnetic fields in solar active regions (hundreds Gauss) are considered here. It is shown that the Zeeman effect leads to appreciable changes in the appearance of the line profile. This may help explain why searches for the H 3.04 line have not led to any detections earlier. New observations of the Sun on the RATAN-600 telescope are analyzed with allowance for the Zeeman effect.

AB - The 9.85-GHz (3.04 cm) line of atomic hydrogen due to the 2 2 P 3/2 –2 2 S 1/2 transition between levels of the hyperfine structure occupies a special place in the complex spectrum of the Sun. This is essentially the only hydrogen line that is expected in the solar radio spectrum. The promising nature of solar observations in the H 3.04 line was first noted in 1952 by Wild, who calculated the line profile using a model for the “quiet” Sun characterized by a weak magnetic field (several Gauss). Computations of this line profile taking into account the strong magnetic fields in solar active regions (hundreds Gauss) are considered here. It is shown that the Zeeman effect leads to appreciable changes in the appearance of the line profile. This may help explain why searches for the H 3.04 line have not led to any detections earlier. New observations of the Sun on the RATAN-600 telescope are analyzed with allowance for the Zeeman effect.

UR - http://www.scopus.com/inward/record.url?scp=85064919436&partnerID=8YFLogxK

UR - http://www.mendeley.com/research/profile-985ghz-neutral-hydrogen-line-taking-account-zeeman-effect-computations-solar-observations

U2 - 10.1134/S1063772919030028

DO - 10.1134/S1063772919030028

M3 - Article

VL - 63

SP - 229

EP - 237

JO - Astronomy Reports

JF - Astronomy Reports

SN - 1063-7729

IS - 3

ER -

ID: 41532780