A “Living Catalog” of Solar Stream Interactions

Parker Solar Probe Spacecraft Approaching Sun

An artist’s rendition of the Parker Solar Probe approaching the Sun. Astronomers have used data from Parker, along with data from other solar missions, to detect and study Solar stream interactions. Credit: NASA/Johns Hopkins APL/Steve Gribben

When a fast solar wind stream erupts from a coronal hole (a cooler region in the Sun’s atmosphere) and overtakes a slower moving solar wind stream, a stream interaction region (SIR) can form. In the SIR, a density “pileup” of compressed

DOI: 10.1051/0004-6361/202039833