Search Publications
Observation and modelling of solar jets
Shen, Yuandeng
The solar atmosphere is full of complicated transients manifesting the reconfiguration of the solar magnetic field and plasma. Solar jets represent collimated, beam-like plasma ejections; they are ubiquitous in the solar atmosphere and important for our understanding of solar activities at different scales, the magnetic reconnection process, parti…
Three-dimensional magnetic reconnection in astrophysical plasmas
Li, Ting; Priest, Eric; Guo, Ruilong
Magnetic reconnection is a fundamental process in laboratory, magnetospheric, solar and astrophysical plasmas, whereby magnetic energy is converted into heat, bulk kinetic energy and fast particle energy. Its nature in two dimensions is much better understood than that in three dimensions, where its character is completely different and has many d…
Magnetic reconnection in partially ionized plasmas
Ni, Lei; Murphy, Nicholas A.; Ji, Hantao +1 more
Magnetic reconnection has been intensively studied in fully ionized plasmas. However, plasmas are often partially ionized in astrophysical environments. The interactions between the neutral particles and ionized plasmas might strongly affect the reconnection mechanisms. We review magnetic reconnection in partially ionized plasmas in different envi…
Placing limits on long-term variations in quiet-Sun irradiance and their contribution to total solar irradiance and solar radiative forcing of climate
Lockwood, Mike; Ball, William T.
Recent reconstructions of total solar irradiance (TSI) postulate that quiet-Sun variations could give significant changes to the solar power input to Earth's climate (radiative climate forcings of 0.7-1.1 W m-2 over 1700-2019) arising from changes in quiet-Sun magnetic fields that have not, as yet, been observed. Reconstructions without…
Ariel 5 Hard X-Ray Observations
Coe, M. J.; Quenby, J. J.; Engel, A. R.
Results from the hard X-ray detector (8 cm2 area, 8 degrees f.w.h.m. field of view, energy range 26-1200 keV) are reviewed in the context of observations by other groups. At least three different classes of galactic sources are studied by this detector. In the first, magnetospheric control of the emission, which seems to be a modified t…