caa a22 4500 445816384 CHVBK 20180317145229.0 cr unu---uuuuu 170323e20110901xx s 000 0 eng 10.1007/s11214-010-9705-4 doi (NATIONALLICENCE)springer-10.1007/s11214-010-9705-4 Microflares and the Statistics of X-ray Flares [Elektronische Daten] [I. Hannah, H. Hudson, M. Battaglia, S. Christe, J. Kašparová, S. Krucker, M. Kundu, A. Veronig] This review surveys the statistics of solar X-ray flares, emphasising the new views that RHESSI has given us of the weaker events (the microflares). The new data reveal that these microflares strongly resemble more energetic events in most respects; they occur solely within active regions and exhibit high-temperature/nonthermal emissions in approximately the same proportion as major events. We discuss the distributions of flare parameters (e.g., peak flux) and how these parameters correlate, for instance via the Neupert effect. We also highlight the systematic biases involved in intercomparing data representing many decades of event magnitude. The intermittency of the flare/microflare occurrence, both in space and in time, argues that these discrete events do not explain general coronal heating, either in active regions or in the quiet Sun. Springer Science+Business Media B.V., 2011 Sun nationallicence Flares nationallicence X-rays nationallicence Hannah I. School of Physics & Astronomy, University of Glasgow, G12 8QQ, Glasgow, UK aut Hudson H. Space Sciences Laboratory, University of California at Berkeley, 94720-7450, Berkeley, CA, USA aut Battaglia M. School of Physics & Astronomy, University of Glasgow, G12 8QQ, Glasgow, UK aut Christe S. NASA Goddard Space Flight Center, 20771, Greenbelt, MD, USA aut Kašparová J. Astronomický ústav AV ČR, v.v.i., Fričova 298, 251 65, Ondřejov, Czech Republic aut Krucker S. Space Sciences Laboratory, University of California at Berkeley, 94720-7450, Berkeley, CA, USA aut Kundu M. Dept. of Astronomy, Univ. of Maryland, 20740, College Park, MD, USA aut Veronig A. Institute of Physics/IGAM, University of Graz, Universitätsplatz 5, 8010, Graz, Austria aut Space Science Reviews Springer Netherlands 159/1-4(2011-09-01), 263-300 0038-6308 159:1-4<263 2011 159 11214 https://doi.org/10.1007/s11214-010-9705-4 text/html Onlinezugriff via DOI 1 review-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11214-010-9705-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hannah I. School of Physics & Astronomy, University of Glasgow, G12 8QQ, Glasgow, UK aut NATIONALLICENCE 700 1- Hudson H. Space Sciences Laboratory, University of California at Berkeley, 94720-7450, Berkeley, CA, USA aut NATIONALLICENCE 700 1- Battaglia M. School of Physics & Astronomy, University of Glasgow, G12 8QQ, Glasgow, UK aut NATIONALLICENCE 700 1- Christe S. NASA Goddard Space Flight Center, 20771, Greenbelt, MD, USA aut NATIONALLICENCE 700 1- Kašparová J. Astronomický ústav AV ČR, v.v.i., Fričova 298, 251 65, Ondřejov, Czech Republic aut NATIONALLICENCE 700 1- Krucker S. Space Sciences Laboratory, University of California at Berkeley, 94720-7450, Berkeley, CA, USA aut NATIONALLICENCE 700 1- Kundu M. Dept. of Astronomy, Univ. of Maryland, 20740, College Park, MD, USA aut NATIONALLICENCE 700 1- Veronig A. Institute of Physics/IGAM, University of Graz, Universitätsplatz 5, 8010, Graz, Austria aut NATIONALLICENCE 773 0- Space Science Reviews Springer Netherlands 159/1-4(2011-09-01), 263-300 0038-6308 159:1-4<263 2011 159 11214 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer