J/ApJ/847/115 The solar flare complex network (Gheibi+, 2017)
The solar flare complex network.
Gheibi A., Safari H., Javaherian M.
<Astrophys. J., 847, 115 (2017)>
=2017ApJ...847..115G 2017ApJ...847..115G
ADC_Keywords: Sun; Stars, flare
Keywords: Sun: flares
Abstract:
We investigate the characteristics of the solar flare complex network.
The limited predictability, nonlinearity, and self-organized
criticality of the flares allow us to study systems of flares in the
field of the complex systems. Both the occurrence time and the
location of flares detected from 2006 January 1 to 2016 July 21 are
used to design the growing flares network. The solar surface is
divided into cells with equal areas. The cells, which include flares,
are considered nodes of the network. The related links are equivalent
to sympathetic flaring. The extracted features demonstrate that the
network of flares follows quantitative measures of complexity. The
power-law nature of the connectivity distribution with a degree
exponent greater than three reveals that flares form a scale-free and
small-world network. A large value for the clustering coefficient, a
small characteristic path length, and a slow change of the diameter
are all characteristics of the flares network. We show that the degree
correlation of the flares network has the characteristics of a
disassortative network. About 11% of the large energetic flares (M and
X types in GOES classification) that occurred in the network hubs
cover 3% of the solar surface.
Description:
Our data set is sourced from the 14395 solar flares taken from 2006
January 1 to 2016 July 21, available at
http://www.lmsal.com/solarsoft/latest_events_archive.html
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 70 18861 Solar flares data
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See also:
J/ApJ/747/L41 : Solar flares probabilities (Bloomfield+, 2012)
J/ApJ/757/94 : Solar flares observed with GOES and AIA (Aschwanden, 2012)
J/A+A/574/A37 : Movies of 2012-10-16 solar flare (Dalmasse+, 2015)
J/ApJ/831/105 : Global energetics of solar flares. IV. CME (Aschwanden, 2016)
J/ApJ/845/36 : Complex network for solar active regions (Daei+, 2017)
http://www.lmsal.com/solarsoft/latest_events_archive.html : SolarSoft latest
events archive
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- Event [11]? Event number
4- 20 A17 --- EName EName
22- 31 A10 "Y/M/D" Date Event start date
33- 40 A8 "h:m:s" Start Event start time
42- 49 A8 "h:m:s" End Event end time
51- 58 A8 "h:m:s" Peak Event peak time
60- 63 A4 --- GOES X-ray GOES Class (X9.0 to A1.0)
65- 70 A6 --- Pos Derived Position on the Sun
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History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 31-May-2018