Observations of rotating sunspots from TRACE

Alan Title; Thomas Carolus; Richard Shine; C. Jacob Wolfson; Richard Nightingale; Carolus Schrijver; Daniel Brown; David Alexander

doi:10.1023/A:1026138413791

Observations of rotating sunspots from TRACE

Alan Title, Thomas Carolus, Richard Shine, C. Jacob Wolfson, Richard Nightingale, Carolus Schrijver, Daniel Brown, David Alexander

Department of Physics

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Abstract

Recent observations from TRACE in the photospheric white light channel have shown sunspots that rotate up to 200° about their umbral centre over a period of 3-5 days. The corresponding loops in the coronal fan are often seen to twist and can erupt as ares. In an ongoing study, seven cases of rotating sunspots have been identified, two of which can be associated with sigmoid structures appearing in Yohkoh/SXT and six with events seen by GOES. This paper analyses the rotation rates of the sunspots using TRACE white light data. Observations from AR 9114 are presented in detail in the main text and a summary of the results for the remaining six sunspots is presented in appendixes. Discussion of the key results, particularly common features, are presented, as well as possible mechanisms for sunspot rotation.

Original language	English
Pages (from-to)	79-108
Number of pages	30
Journal	Solar Physics
DOIs	https://doi.org/10.1023/A:1026138413791
Publication status	Published - 2003

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title = "Observations of rotating sunspots from TRACE",

abstract = "Recent observations from TRACE in the photospheric white light channel have shown sunspots that rotate up to 200° about their umbral centre over a period of 3-5 days. The corresponding loops in the coronal fan are often seen to twist and can erupt as ares. In an ongoing study, seven cases of rotating sunspots have been identified, two of which can be associated with sigmoid structures appearing in Yohkoh/SXT and six with events seen by GOES. This paper analyses the rotation rates of the sunspots using TRACE white light data. Observations from AR 9114 are presented in detail in the main text and a summary of the results for the remaining six sunspots is presented in appendixes. Discussion of the key results, particularly common features, are presented, as well as possible mechanisms for sunspot rotation.",

author = "Alan Title and Thomas Carolus and Richard Shine and Wolfson, {C. Jacob} and Richard Nightingale and Carolus Schrijver and Daniel Brown and David Alexander",

note = "Brown, D.S., Nightingale, R.W., Alexander, D., Schrijver, C.J., Metcalf, T.R., Shine, R.A., Title, A.M. and Wolfson, C.J., 2003, Observations of rotating sunspots from TRACE, Solar Physics, 216, 79-108.",

year = "2003",

doi = "10.1023/A:1026138413791",

language = "English",

pages = "79--108",

journal = "Solar Physics",

issn = "1573-093X",

publisher = "Springer Nature",

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TY - JOUR

T1 - Observations of rotating sunspots from TRACE

AU - Title, Alan

AU - Carolus, Thomas

AU - Shine, Richard

AU - Wolfson, C. Jacob

AU - Nightingale, Richard

AU - Schrijver, Carolus

AU - Brown, Daniel

AU - Alexander, David

N1 - Brown, D.S., Nightingale, R.W., Alexander, D., Schrijver, C.J., Metcalf, T.R., Shine, R.A., Title, A.M. and Wolfson, C.J., 2003, Observations of rotating sunspots from TRACE, Solar Physics, 216, 79-108.

PY - 2003

Y1 - 2003

N2 - Recent observations from TRACE in the photospheric white light channel have shown sunspots that rotate up to 200° about their umbral centre over a period of 3-5 days. The corresponding loops in the coronal fan are often seen to twist and can erupt as ares. In an ongoing study, seven cases of rotating sunspots have been identified, two of which can be associated with sigmoid structures appearing in Yohkoh/SXT and six with events seen by GOES. This paper analyses the rotation rates of the sunspots using TRACE white light data. Observations from AR 9114 are presented in detail in the main text and a summary of the results for the remaining six sunspots is presented in appendixes. Discussion of the key results, particularly common features, are presented, as well as possible mechanisms for sunspot rotation.

AB - Recent observations from TRACE in the photospheric white light channel have shown sunspots that rotate up to 200° about their umbral centre over a period of 3-5 days. The corresponding loops in the coronal fan are often seen to twist and can erupt as ares. In an ongoing study, seven cases of rotating sunspots have been identified, two of which can be associated with sigmoid structures appearing in Yohkoh/SXT and six with events seen by GOES. This paper analyses the rotation rates of the sunspots using TRACE white light data. Observations from AR 9114 are presented in detail in the main text and a summary of the results for the remaining six sunspots is presented in appendixes. Discussion of the key results, particularly common features, are presented, as well as possible mechanisms for sunspot rotation.

U2 - 10.1023/A:1026138413791

DO - 10.1023/A:1026138413791

M3 - Article

SN - 1573-093X

SP - 79

EP - 108

JO - Solar Physics

JF - Solar Physics

ER -

Observations of rotating sunspots from TRACE

Abstract

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