Helioseismic frequency shifts due to steady states

Róbert Erdélyi; Yeghiazar Taroyan

Helioseismic frequency shifts due to steady states

Róbert Erdélyi
, Yeghiazar Taroyan

University of Sheffield

Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Trafodion Cynhadledd (ISBN)

Crynodeb

A three layer model of the Sun is presented for the study of p-and f-modes. Frequency shifts due to the combined effects of an atmospheric magnetic field and subsurface equilibrium flows are evaluated by deriving and solving the dispersion relation. An increase in the chromospheric temperature can not only reduce but also raise the frequencies of p-and f-modes when a background magnetic field is present. Beside flow effects the effect of changing the height of the magnetic canopy is also examined. A comparison of our theoretical results with recent observational data shows an excellent agreement.

Iaith wreiddiol	Saesneg
Teitl	Proceedings of the SOHO 10/GONG 2000 Workshop
Is-deitl	Helio-and Asteroseismology at the Dawn of the Millennium
Tudalennau	203-206
Nifer y tudalennau	4
Cyfrol	464
Statws	Cyhoeddwyd - Ion 2001
Cyhoeddwyd yn allanol	Ie
Digwyddiad	SOHO 10/GONG 2000 Workshop: Helio- and asteroseismology at the dawn of the millennium - Tenerife, Santa Cruz de Tenerife, Sbaen Hyd: 02 Hyd 2000 → 06 Hyd 2000

Cynhadledd

Cynhadledd	SOHO 10/GONG 2000 Workshop
Gwlad/Tiriogaeth	Sbaen
Dinas	Santa Cruz de Tenerife
Cyfnod	02 Hyd 2000 → 06 Hyd 2000

Cysylltiad parhaol

Dolen barhaus

Dyfynnu hyn

@inproceedings{969823be0ef24ed3b63aecf4defce3f3,

title = "Helioseismic frequency shifts due to steady states",

abstract = "A three layer model of the Sun is presented for the study of p-and f-modes. Frequency shifts due to the combined effects of an atmospheric magnetic field and subsurface equilibrium flows are evaluated by deriving and solving the dispersion relation. An increase in the chromospheric temperature can not only reduce but also raise the frequencies of p-and f-modes when a background magnetic field is present. Beside flow effects the effect of changing the height of the magnetic canopy is also examined. A comparison of our theoretical results with recent observational data shows an excellent agreement.",

keywords = "p- and f- Modes, Steady Flow, Frequency Shifts",

author = "R{\'o}bert Erd{\'e}lyi and Yeghiazar Taroyan",

year = "2001",

month = jan,

language = "English",

isbn = "92-9092-697-X",

volume = "464",

pages = "203--206",

booktitle = "Proceedings of the SOHO 10/GONG 2000 Workshop",

note = "SOHO 10/GONG 2000 Workshop : Helio- and asteroseismology at the dawn of the millennium ; Conference date: 02-10-2000 Through 06-10-2000",

}

TY - GEN

T1 - Helioseismic frequency shifts due to steady states

AU - Erdélyi, Róbert

AU - Taroyan, Yeghiazar

PY - 2001/1

Y1 - 2001/1

N2 - A three layer model of the Sun is presented for the study of p-and f-modes. Frequency shifts due to the combined effects of an atmospheric magnetic field and subsurface equilibrium flows are evaluated by deriving and solving the dispersion relation. An increase in the chromospheric temperature can not only reduce but also raise the frequencies of p-and f-modes when a background magnetic field is present. Beside flow effects the effect of changing the height of the magnetic canopy is also examined. A comparison of our theoretical results with recent observational data shows an excellent agreement.

AB - A three layer model of the Sun is presented for the study of p-and f-modes. Frequency shifts due to the combined effects of an atmospheric magnetic field and subsurface equilibrium flows are evaluated by deriving and solving the dispersion relation. An increase in the chromospheric temperature can not only reduce but also raise the frequencies of p-and f-modes when a background magnetic field is present. Beside flow effects the effect of changing the height of the magnetic canopy is also examined. A comparison of our theoretical results with recent observational data shows an excellent agreement.

KW - p- and f- Modes

KW - Steady Flow

KW - Frequency Shifts

M3 - Conference Proceeding (ISBN)

SN - 92-9092-697-X

VL - 464

SP - 203

EP - 206

BT - Proceedings of the SOHO 10/GONG 2000 Workshop

T2 - SOHO 10/GONG 2000 Workshop

Y2 - 2 October 2000 through 6 October 2000

ER -

Helioseismic frequency shifts due to steady states

Crynodeb

Cynhadledd

Cysylltiad parhaol

Ôl bys

Dyfynnu hyn