Initial results from SECIS observations of the 2001 eclipse

A. C. Katsiyannis; D. R. Williams; F. Murtagh; R. T.J. McAteer; F. P. Keenan

Initial results from SECIS observations of the 2001 eclipse

A. C. Katsiyannis, D. R. Williams, F. Murtagh, R. T.J. McAteer, F. P. Keenan

Research output: Contribution to journal › Conference article › peer-review

Abstract

SECIS observations of the June 2001 total solar eclipse were taken using an Fe XIV 5303 Å filter. Automated tools based on wavelet analysis was used to detect intensity oscillations on various areas of the images. Statistical analysis of the detections found in the areas covered by the moon and the upper corona allowed us to estimate the atmospheric and instrumental effects on the detection of intensity oscillations. An area of the lower corona, close to Active Region 9513, was found with a statistically significant amount of intensity oscillations with periodicity of ∼7.5s. The shape of the wavelet transformation of those detections matches theoretical predictions of sausage-mode perturbations and for the first time in the SECIS project, second order oscillations were also detected.

Original language	English
Pages (from-to)	410-415
Number of pages	6
Journal	European Space Agency, (Special Publication) ESA SP
Issue number	575
Publication status	Published - 1 Dec 2004
Externally published	Yes
Event	SOHO 15 Workshop: Coronal Heating - St. Andrews, United Kingdom Duration: 6 Sep 2004 → 9 Sep 2004 https://www.esa.int/esapub/conference/toc/tocSP575.pdf

Cite this

@article{00dcbdb078f94f8ba5439cacd634625f,

title = "Initial results from SECIS observations of the 2001 eclipse",

abstract = "SECIS observations of the June 2001 total solar eclipse were taken using an Fe XIV 5303 {\AA} filter. Automated tools based on wavelet analysis was used to detect intensity oscillations on various areas of the images. Statistical analysis of the detections found in the areas covered by the moon and the upper corona allowed us to estimate the atmospheric and instrumental effects on the detection of intensity oscillations. An area of the lower corona, close to Active Region 9513, was found with a statistically significant amount of intensity oscillations with periodicity of ∼7.5s. The shape of the wavelet transformation of those detections matches theoretical predictions of sausage-mode perturbations and for the first time in the SECIS project, second order oscillations were also detected.",

author = "Katsiyannis, {A. C.} and Williams, {D. R.} and F. Murtagh and McAteer, {R. T.J.} and Keenan, {F. P.}",

year = "2004",

month = dec,

day = "1",

language = "English",

pages = "410--415",

journal = "European Space Agency, (Special Publication) ESA SP",

issn = "0379-6566",

publisher = "European Space Agency",

number = "575",

note = "SOHO 15 Workshop: Coronal Heating ; Conference date: 06-09-2004 Through 09-09-2004",

url = "https://www.esa.int/esapub/conference/toc/tocSP575.pdf",

}

TY - JOUR

T1 - Initial results from SECIS observations of the 2001 eclipse

AU - Katsiyannis, A. C.

AU - Williams, D. R.

AU - Murtagh, F.

AU - McAteer, R. T.J.

AU - Keenan, F. P.

PY - 2004/12/1

Y1 - 2004/12/1

N2 - SECIS observations of the June 2001 total solar eclipse were taken using an Fe XIV 5303 Å filter. Automated tools based on wavelet analysis was used to detect intensity oscillations on various areas of the images. Statistical analysis of the detections found in the areas covered by the moon and the upper corona allowed us to estimate the atmospheric and instrumental effects on the detection of intensity oscillations. An area of the lower corona, close to Active Region 9513, was found with a statistically significant amount of intensity oscillations with periodicity of ∼7.5s. The shape of the wavelet transformation of those detections matches theoretical predictions of sausage-mode perturbations and for the first time in the SECIS project, second order oscillations were also detected.

AB - SECIS observations of the June 2001 total solar eclipse were taken using an Fe XIV 5303 Å filter. Automated tools based on wavelet analysis was used to detect intensity oscillations on various areas of the images. Statistical analysis of the detections found in the areas covered by the moon and the upper corona allowed us to estimate the atmospheric and instrumental effects on the detection of intensity oscillations. An area of the lower corona, close to Active Region 9513, was found with a statistically significant amount of intensity oscillations with periodicity of ∼7.5s. The shape of the wavelet transformation of those detections matches theoretical predictions of sausage-mode perturbations and for the first time in the SECIS project, second order oscillations were also detected.

UR - http://www.scopus.com/inward/record.url?scp=22144442466&partnerID=8YFLogxK

UR - https://www.esa.int/esapub/conference/toc/tocSP575.pdf

M3 - Conference article

AN - SCOPUS:22144442466

SP - 410

EP - 415

JO - European Space Agency, (Special Publication) ESA SP

JF - European Space Agency, (Special Publication) ESA SP

SN - 0379-6566

IS - 575

T2 - SOHO 15 Workshop: Coronal Heating

Y2 - 6 September 2004 through 9 September 2004

ER -

Initial results from SECIS observations of the 2001 eclipse

Abstract

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