Formation of solar magnetic flux tubes with kilogauss field strength induced by convective instability

Shin'ichi Nagata; Saku Tsuneta; Yoshinori Suematsu; Kiyoshi Ichimoto; Yukio Katsukawa; Toshifumi Shimizu; Takaaki Yokoyama; Theodore D. Tarbell; Bruce W. Lites; Richard A. Shine; Thomas E. Berger; Alan M. Title; Luis R.Bellot Rubio; David Orozco Suarez

doi:10.1086/588026

Formation of solar magnetic flux tubes with kilogauss field strength induced by convective instability

Shin'ichi Nagata
, Saku Tsuneta
, Yoshinori Suematsu
, Kiyoshi Ichimoto
, Yukio Katsukawa
, Toshifumi Shimizu
, Takaaki Yokoyama
, Theodore D. Tarbell
, Bruce W. Lites
, Richard A. Shine
, Thomas E. Berger
, Alan M. Title
, Luis R.Bellot Rubio
, David Orozco Suarez

Kyoto University
National Institutes of Natural Sciences - National Astronomical Observatory of Japan
JAXA Institute of Space and Astronautical Science
The University of Tokyo
Lockheed Martin
National Center for Atmospheric Research
CSIC - Institute of Astrophysics of Andalusia

Research output: Contribution to journal › Article › peer-review

86 Scopus citations

Abstract

Convective instability has been a mechanism used to explain the formation of solar photospheric flux tubes with kG field strength. However, the turbulence of the Earth's atmosphere has prevented ground-based observers from examining the hypothesis with precise polarimetric measurement on the subarcsecond scale flux tubes. Here we discuss observational evidence of this scenario based on observations with the Solar Optical Telescope (SOT) aboard Hinode. The cooling of an equipartition field strength flux tube precedes a transient downflow reaching 6 km s^-1 and the intensification of the field strength to 2 kG. These observations agree very well with the theoretical predictions.

Original language	English
Pages (from-to)	L145-L147
Journal	Astrophysical Journal
Volume	677
Issue number	2 PART 2
DOIs	https://doi.org/10.1086/588026
State	Published - 2008
Externally published	Yes

Keywords

Sun: photosphere

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10.1086/588026

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Nagata, S., Tsuneta, S., Suematsu, Y., Ichimoto, K., Katsukawa, Y., Shimizu, T., Yokoyama, T., Tarbell, T. D., Lites, B. W., Shine, R. A., Berger, T. E., Title, A. M., Rubio, L. R. B., & Suarez, D. O. (2008). Formation of solar magnetic flux tubes with kilogauss field strength induced by convective instability. Astrophysical Journal, 677(2 PART 2), L145-L147. https://doi.org/10.1086/588026

@article{cf52c25067cc4853bb50834d5944024b,

title = "Formation of solar magnetic flux tubes with kilogauss field strength induced by convective instability",

abstract = "Convective instability has been a mechanism used to explain the formation of solar photospheric flux tubes with kG field strength. However, the turbulence of the Earth's atmosphere has prevented ground-based observers from examining the hypothesis with precise polarimetric measurement on the subarcsecond scale flux tubes. Here we discuss observational evidence of this scenario based on observations with the Solar Optical Telescope (SOT) aboard Hinode. The cooling of an equipartition field strength flux tube precedes a transient downflow reaching 6 km s-1 and the intensification of the field strength to 2 kG. These observations agree very well with the theoretical predictions.",

keywords = "Sun: photosphere",

author = "Shin'ichi Nagata and Saku Tsuneta and Yoshinori Suematsu and Kiyoshi Ichimoto and Yukio Katsukawa and Toshifumi Shimizu and Takaaki Yokoyama and Tarbell, \{Theodore D.\} and Lites, \{Bruce W.\} and Shine, \{Richard A.\} and Berger, \{Thomas E.\} and Title, \{Alan M.\} and Rubio, \{Luis R.Bellot\} and Suarez, \{David Orozco\}",

year = "2008",

doi = "10.1086/588026",

language = "English",

volume = "677",

pages = "L145--L147",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "American Astronomical Society",

number = "2 PART 2",

}

Nagata, S, Tsuneta, S, Suematsu, Y, Ichimoto, K, Katsukawa, Y, Shimizu, T, Yokoyama, T, Tarbell, TD, Lites, BW, Shine, RA, Berger, TE, Title, AM, Rubio, LRB & Suarez, DO 2008, 'Formation of solar magnetic flux tubes with kilogauss field strength induced by convective instability', Astrophysical Journal, vol. 677, no. 2 PART 2, pp. L145-L147. https://doi.org/10.1086/588026

TY - JOUR

T1 - Formation of solar magnetic flux tubes with kilogauss field strength induced by convective instability

AU - Nagata, Shin'ichi

AU - Tsuneta, Saku

AU - Suematsu, Yoshinori

AU - Ichimoto, Kiyoshi

AU - Katsukawa, Yukio

AU - Shimizu, Toshifumi

AU - Yokoyama, Takaaki

AU - Tarbell, Theodore D.

AU - Lites, Bruce W.

AU - Shine, Richard A.

AU - Berger, Thomas E.

AU - Title, Alan M.

AU - Rubio, Luis R.Bellot

AU - Suarez, David Orozco

PY - 2008

Y1 - 2008

N2 - Convective instability has been a mechanism used to explain the formation of solar photospheric flux tubes with kG field strength. However, the turbulence of the Earth's atmosphere has prevented ground-based observers from examining the hypothesis with precise polarimetric measurement on the subarcsecond scale flux tubes. Here we discuss observational evidence of this scenario based on observations with the Solar Optical Telescope (SOT) aboard Hinode. The cooling of an equipartition field strength flux tube precedes a transient downflow reaching 6 km s-1 and the intensification of the field strength to 2 kG. These observations agree very well with the theoretical predictions.

AB - Convective instability has been a mechanism used to explain the formation of solar photospheric flux tubes with kG field strength. However, the turbulence of the Earth's atmosphere has prevented ground-based observers from examining the hypothesis with precise polarimetric measurement on the subarcsecond scale flux tubes. Here we discuss observational evidence of this scenario based on observations with the Solar Optical Telescope (SOT) aboard Hinode. The cooling of an equipartition field strength flux tube precedes a transient downflow reaching 6 km s-1 and the intensification of the field strength to 2 kG. These observations agree very well with the theoretical predictions.

KW - Sun: photosphere

UR - https://www.scopus.com/pages/publications/46249112588

U2 - 10.1086/588026

DO - 10.1086/588026

M3 - Article

AN - SCOPUS:46249112588

SN - 0004-637X

VL - 677

SP - L145-L147

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2 PART 2

ER -

Formation of solar magnetic flux tubes with kilogauss field strength induced by convective instability

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Keywords

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