Spectral energy of multisource and multielement of solar energetic particles during the spotless days on solar cycle 24

We characterized solar energetic particle power-law spectra from selected two sunspotless events with more than 30 consecutive day's length on July 21 to August 20, 2008 (31 days) and July 31 to August 31, 2009 (32 days) in the solar cycle 24. Their spectral of energetic interplanetary multielements of seven charge particles (H, He, C, O, Ne, Si, and Fe) from 15 keV to 0.5 GeV per nucleon have been compiled from onboard instruments of several satellites with different distances from the Sun (GOES, ACE, STEREO, and Voyager). Their spotless spectral energetic particles were also compared with appearances of AR12192, owing very large sunspot area (>2000 millionth of solar hemisphere) without foreshortening effect, on October 19-27, 2014. Our results from six charge elements show that there were intrinsic differences among those events on aspects of flux particles enhancement by double power-law or V-shape. Flux enhancements occurred after 10 MeV for sunspotless days and 20-30 MeV for AR 12192 passage. The effects of very strong magnetic field in AR 12192 influences two mechanisms, flux enrichment of charge particles in lower energy and on the contrary to inhibit streaming of particles in higher energy. It is suggested that interactions of multielements of solar energetic particles with interplanetary magnetic fields and plasma speed play an important role, as seen from the variations of rollover power-law of spectral energy.