| bibtype |
J -
Journal Article
|
| ARLID |
0399766 |
| utime |
20240103203353.2 |
| mtime |
20140214235959.9 |
| WOS |
000327094700013 |
| SCOPUS |
84888007691 |
| DOI |
10.1007/s11207-013-0334-4 |
| title
(primary) (eng) |
Statistical Moments of Active-Region Images During Solar Flares |
| specification |
|
| serial |
| ARLID |
cav_un_epca*0257605 |
| ISSN |
0038-0938 |
| title
|
Solar Physics |
| volume_id |
289 |
| volume |
1 (2014) |
| page_num |
193-209 |
| publisher |
|
|
| keyword |
Sun |
| keyword |
solar flares |
| keyword |
frequency analysis |
| author
(primary) |
| ARLID |
cav_un_auth*0100099 |
| name1 |
Šimberová |
| name2 |
Stanislava |
| full_dept (cz) |
Sluneční oddělení |
| full_dept (eng) |
Department of Solar Physics |
| institution |
ASU-R |
| full_dept |
Department of Solar Physics - Team 1 |
| fullinstit |
Astronomický ústav AV ČR, v. v. i. |
|
| author
|
| ARLID |
cav_un_auth*0100036 |
| name1 |
Karlický |
| name2 |
Marian |
| full_dept (cz) |
Sluneční oddělení |
| full_dept |
Department of Solar Physics |
| institution |
ASU-R |
| full_dept |
Department of Solar Physics - Team 1 |
| fullinstit |
Astronomický ústav AV ČR, v. v. i. |
|
| author
|
| ARLID |
cav_un_auth*0101203 |
| name1 |
Suk |
| name2 |
Tomáš |
| full_dept (cz) |
Zpracování obrazové informace |
| full_dept |
Department of Image Processing |
| department (cz) |
ZOI |
| department |
ZOI |
| institution |
UTIA-B |
| full_dept |
Department of Image Processing |
| fullinstit |
Ústav teorie informace a automatizace AV ČR, v. v. i. |
|
| source |
|
| cas_special |
| project |
| project_id |
GA102/08/1593 |
| agency |
GA ČR |
| ARLID |
cav_un_auth*0239572 |
|
| project |
| project_id |
GAP209/12/0103 |
| agency |
GA ČR |
| ARLID |
cav_un_auth*0284771 |
|
| project |
| project_id |
GAP103/11/1552 |
| agency |
GA ČR |
| ARLID |
cav_un_auth*0273618 |
|
| abstract
(eng) |
We present new temporal-evolution diagnostics of solar flares. The high-order statistical moments (skewness and kurtosis) of the Hα images of active regions during solar flares were computed from their initial phases up to their maxima. The same method was used for quiet active regions for tests and comparison. We found that temporal profiles of the Hα statistical moments during flares roughly correspond to those observed in soft X-rays by the GOES satellite. Maxima of the cross-correlation coefficients between the skewness and the GOES X-rays were found to be 0.82 – 0.98, and the GOES X-rays are delayed 0 – 144 seconds against the skewness. We recognized that these moments are very sensitive to pre-flare activities. Therefore we used them to determine the flare starting-time and to study the pre-flare quasi-periodic processes. We determined the periods of these pre-flare processes in an interval of 20 – 400 seconds by using special convolution filters and Fourier analysis. We propose to use this method to analyze active regions during the very early phases of solar flares, and even in real time. |
| reportyear |
2015 |
| RIV |
BN |
| mrcbC52 |
4 A 4a 20231122135939.0 |
| mrcbC55 |
UTIA-B IN |
| inst_support |
RVO:67985815 |
| inst_support |
RVO:67985556 |
| permalink |
http://hdl.handle.net/11104/0226972 |
| confidential |
S |
| mrcbT16-e |
ASTRONOMYASTROPHYSICS |
| mrcbT16-j |
1.601 |
| mrcbT16-s |
2.338 |
| mrcbT16-4 |
Q1 |
| mrcbT16-B |
45.777 |
| mrcbT16-C |
75.833 |
| mrcbT16-D |
Q3 |
| mrcbT16-E |
Q3 |
| arlyear |
2014 |
| mrcbTft |
\nSoubory v repozitáři: SolarPhys_289_Simberova.pdf |
| mrcbU14 |
84888007691 SCOPUS |
| mrcbU34 |
000327094700013 WOS |
| mrcbU63 |
cav_un_epca*0257605 Solar Physics 0038-0938 1573-093X Roč. 289 č. 1 2014 193 209 Springer |
|