Energy Partition in Two M-class Circular-ribbon Flares

doi:10.3847/1538-4357/ab3a52

	Energy Partition in Two M-class Circular-ribbon Flares
	Zhang, Q. M.; Cheng, J. X.; Feng, L.; Su, Y.; Lu, L.; Huang, Y.; Li, D.; Zhou, T. H.; Chen, J. L.
刊名	ASTROPHYSICAL JOURNAL
	2019
卷号	883 期号:2 页码:124
关键词	Sun: flares Sun: magnetic fields Sun: UV radiation Sun: X-rays, gamma rays
ISSN号	0004-637X
DOI	10.3847/1538-4357/ab3a52
英文摘要	In this paper, we investigate the energy partition of two homologous M1.1 circular-ribbon flares (CRFs) in active region (AR) 12434. They were observed by SDO, GOES, and RHESSI on 2015 October 15 and 16, respectively. The peak thermal energy, nonthermal energy of flare-accelerated electrons, total radiative loss of hot plasma, and radiant energies in 1-8 angstrom and 1-70 angstrom of the flares are calculated. The two flares have similar energetics. The peak thermal energies are (1.94 +/- 0.13) x 10(30) erg. The nonthermal energies in flare-accelerated electrons are (3.9 +/- 0.7) x 10(30) erg. The radiative outputs of the flare loops in 1-70 angstrom, which are similar to 200 times greater than the outputs in 1-8 angstrom, account for similar to 62.5% of the peak thermal energies. The radiative losses of SXR-emitting plasma are one order of magnitude lower than the peak thermal energies. Therefore, the total heating requirements of flare loops including radiative loss are (2.1 +/- 0.1) x 10(30) erg, which could sufficiently be supplied by nonthermal electrons.
语种	英语
内容类型	期刊论文
源URL	[http://ir.nssc.ac.cn/handle/122/7248]
专题	国家空间科学中心_空间科学部
推荐引用方式 GB/T 7714	Zhang, Q. M.,Cheng, J. X.,Feng, L.,et al. Energy Partition in Two M-class Circular-ribbon Flares[J]. ASTROPHYSICAL JOURNAL,2019,883(2):124.
APA	Zhang, Q. M..,Cheng, J. X..,Feng, L..,Su, Y..,Lu, L..,...&Chen, J. L..(2019).Energy Partition in Two M-class Circular-ribbon Flares.ASTROPHYSICAL JOURNAL,883(2),124.
MLA	Zhang, Q. M.,et al."Energy Partition in Two M-class Circular-ribbon Flares".ASTROPHYSICAL JOURNAL 883.2(2019):124.