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New views on the emission and structure of the solar transition region
He, Jiansen; Tian, Hui; Marsch, Eckart +2 more
The Sun is the only star that we can spatially resolve and it can be regarded as a fundamental plasma laboratory of astrophysics. The solar transition region (TR), the layer between the solar chromosphere and corona, plays an important role in solar wind origin and coronal heating. Recent high-resolution observations made by SOHO, TRACE, and Hinod…
Supersoft X-ray sources: Confronting the van den Heuvel paradigm
Charles, P. A.; Heathcote, B.; McGowan, K. E. +3 more
The origin of the extremely soft (low temperature) X-rays produced in the supersoft X-ray sources (or SSS) has been a subject of debate for much of the 25 years since their discovery. The currently accepted paradigm is that they are Eddington-limited accreting white dwarfs in which the accreted material is undergoing steady nuclear burning, thereb…