We present the result of comparison between magnetic field parameters and the intensity of X-ray emission for solar microflares with Geosynchronous Operational Environmental Satellites (GOES) classes from A0.02 to B5.1. For our study, we used the monochromatic MgXII Imaging Spectroheliometer (MISH), Full-disk EUV Telescope (FET) and Solar PHotometer in X-rays (SphinX) instruments onboard the Complex Orbital Observations Near-Earth of Activity of the Sun-Photon (CORONAS-Photon) spacecraft because of their high sensitivity in soft X-rays. The peak flare flux (PFF) for solar microflares was found to depend on the strength of the magnetic field and total unsigned magnetic flux as a power-law function. In the spectral range 2.8-36.6 \AA\ which shows very little increase related to microflares the power-law index of the relation between the X-ray flux and magnetic flux for active regions is 1.48 $\pm$ 0.86, which is close to the value obtained previously by Pevtsov et al. (Astrophys. J. 598, 1387, 2003) for different types of solar and stellar objects. In the spectral range 1-8 \AA\ the power-law indices for PFF($B$) and PFF($\Phi$) for microflares are 3.87 $\pm$ 2.16 and 3 $\pm$ 1.6 respectively. We also make suggestions on the heating mechanisms in active regions and microflares under the assumption of loops with constant pressure and heating using the Rosner-Tucker-Vaiana (RTV) scaling laws.
翻译:我们比较了磁场参数和太阳微光辐射X射线发射强度与从A0.02到B5.1的地球同步操作环境卫星(GOES)等级的磁场参数和太阳微光辐射强度之间的比较结果。关于我们的研究,我们使用单色MgXII成像光谱仪(MICH)、全色EUV望远镜(FET)和X射线(SphinX)中太阳-Photon(CORONAS-Photon)活动近地的复合轨道观测仪器,由于这些仪器在软X射线中的敏感度很高。 发现,太阳微光谱星的高峰耀斑通量值取决于磁场的强度和完全未分配的磁性通量,在X光谱范围2.8-3.6\A\A\显示,与微风光观测(S-Ray通量和电磁通向区域)的电法指数为1.48美元,在1A-38A值轨道下,在1A-FAL轨道下,在1A和1A级的数值下,在1A.A.A.和1A.和1A.A.