New IRIS constraints on the solar core rotation

Laurent Gizon, E. Fossat, M. Lazrek, A. Cacciani, S. Ehgamberdiev, B. Gelly, G. Grec, J. T. Hoeksema, S. Kahlikov, P. L. Pallé, A. Pantel, C. Régulo, F. X. Schmider, P. R. Wilson

Research output: Contribution to journalArticle

Abstract

Four time series of IRIS data (4 to 6 months) have been used to obtain improved measurements of the low degree (ℓ = 1, 2, 3) rotational splitting frequencies. Assuming that the rotation law is known in the outer layers of the Sun, we investigate the implications of IRIS splittings for the central regions. Both a one-shell and a two-shell rotation model have been considered in the solar core. A core rotating slightly faster than the outer radiative envelope provides the best fit to the data. Some evidence for the reliability of the observations is shown by the visibility of differential rotation in the ℜ = 3 multiplets.

Original languageEnglish (US)
JournalAstronomy and Astrophysics
Volume317
Issue number2
StatePublished - Jan 10 1997

Fingerprint

shell
visibility
time series
sun
envelopes
fine structure

Keywords

  • Sun: interior
  • Sun: oscillations
  • Sun: rotation

ASJC Scopus subject areas

  • Space and Planetary Science

Cite this

Gizon, L., Fossat, E., Lazrek, M., Cacciani, A., Ehgamberdiev, S., Gelly, B., ... Wilson, P. R. (1997). New IRIS constraints on the solar core rotation. Astronomy and Astrophysics, 317(2).

New IRIS constraints on the solar core rotation. / Gizon, Laurent; Fossat, E.; Lazrek, M.; Cacciani, A.; Ehgamberdiev, S.; Gelly, B.; Grec, G.; Hoeksema, J. T.; Kahlikov, S.; Pallé, P. L.; Pantel, A.; Régulo, C.; Schmider, F. X.; Wilson, P. R.

In: Astronomy and Astrophysics, Vol. 317, No. 2, 10.01.1997.

Research output: Contribution to journalArticle

Gizon, L, Fossat, E, Lazrek, M, Cacciani, A, Ehgamberdiev, S, Gelly, B, Grec, G, Hoeksema, JT, Kahlikov, S, Pallé, PL, Pantel, A, Régulo, C, Schmider, FX & Wilson, PR 1997, 'New IRIS constraints on the solar core rotation', Astronomy and Astrophysics, vol. 317, no. 2.
Gizon L, Fossat E, Lazrek M, Cacciani A, Ehgamberdiev S, Gelly B et al. New IRIS constraints on the solar core rotation. Astronomy and Astrophysics. 1997 Jan 10;317(2).
Gizon, Laurent ; Fossat, E. ; Lazrek, M. ; Cacciani, A. ; Ehgamberdiev, S. ; Gelly, B. ; Grec, G. ; Hoeksema, J. T. ; Kahlikov, S. ; Pallé, P. L. ; Pantel, A. ; Régulo, C. ; Schmider, F. X. ; Wilson, P. R. / New IRIS constraints on the solar core rotation. In: Astronomy and Astrophysics. 1997 ; Vol. 317, No. 2.
@article{bdd6cc1928e34d048255a6eb197dea5b,
title = "New IRIS constraints on the solar core rotation",
abstract = "Four time series of IRIS data (4 to 6 months) have been used to obtain improved measurements of the low degree (ℓ = 1, 2, 3) rotational splitting frequencies. Assuming that the rotation law is known in the outer layers of the Sun, we investigate the implications of IRIS splittings for the central regions. Both a one-shell and a two-shell rotation model have been considered in the solar core. A core rotating slightly faster than the outer radiative envelope provides the best fit to the data. Some evidence for the reliability of the observations is shown by the visibility of differential rotation in the ℜ = 3 multiplets.",
keywords = "Sun: interior, Sun: oscillations, Sun: rotation",
author = "Laurent Gizon and E. Fossat and M. Lazrek and A. Cacciani and S. Ehgamberdiev and B. Gelly and G. Grec and Hoeksema, {J. T.} and S. Kahlikov and Pall{\'e}, {P. L.} and A. Pantel and C. R{\'e}gulo and Schmider, {F. X.} and Wilson, {P. R.}",
year = "1997",
month = "1",
day = "10",
language = "English (US)",
volume = "317",
journal = "Astronomy and Astrophysics",
issn = "0004-6361",
publisher = "EDP Sciences",
number = "2",

}

TY - JOUR

T1 - New IRIS constraints on the solar core rotation

AU - Gizon, Laurent

AU - Fossat, E.

AU - Lazrek, M.

AU - Cacciani, A.

AU - Ehgamberdiev, S.

AU - Gelly, B.

AU - Grec, G.

AU - Hoeksema, J. T.

AU - Kahlikov, S.

AU - Pallé, P. L.

AU - Pantel, A.

AU - Régulo, C.

AU - Schmider, F. X.

AU - Wilson, P. R.

PY - 1997/1/10

Y1 - 1997/1/10

N2 - Four time series of IRIS data (4 to 6 months) have been used to obtain improved measurements of the low degree (ℓ = 1, 2, 3) rotational splitting frequencies. Assuming that the rotation law is known in the outer layers of the Sun, we investigate the implications of IRIS splittings for the central regions. Both a one-shell and a two-shell rotation model have been considered in the solar core. A core rotating slightly faster than the outer radiative envelope provides the best fit to the data. Some evidence for the reliability of the observations is shown by the visibility of differential rotation in the ℜ = 3 multiplets.

AB - Four time series of IRIS data (4 to 6 months) have been used to obtain improved measurements of the low degree (ℓ = 1, 2, 3) rotational splitting frequencies. Assuming that the rotation law is known in the outer layers of the Sun, we investigate the implications of IRIS splittings for the central regions. Both a one-shell and a two-shell rotation model have been considered in the solar core. A core rotating slightly faster than the outer radiative envelope provides the best fit to the data. Some evidence for the reliability of the observations is shown by the visibility of differential rotation in the ℜ = 3 multiplets.

KW - Sun: interior

KW - Sun: oscillations

KW - Sun: rotation

UR - http://www.scopus.com/inward/record.url?scp=0002508887&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0002508887&partnerID=8YFLogxK

M3 - Article

VL - 317

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

SN - 0004-6361

IS - 2

ER -