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Related Articles from SNS

Hybrid simulations of the proton beam instabilities in the young solar wind. The formation of hammerhead-like distributions

Announce Type: new Abstract: Parker Solar Probe (PSP) observations in the young solar wind reveal new properties of both plasma particle velocity distributions (VDs) and associated electromagnetic (EM) wave fluctuations. The quasilinear (QL) kinetic theory of plasma wave instabilities has recently shown that new hammerhead (HH) proton distributions can be generated by the relaxation of proton beams through the instabilities of right-handed (RH) polarized waves. Such RH waves have indeed been...

arXiv Physics 1d ago

Radial evolution of Alfv\'en wave Parametric Decay Instability in the near-Sun solar wind: Effects of Temperature Anisotropy

arXiv:2604.22489v3 Announce Type: replace-cross Abstract: Parametric decay instability (PDI) of Alfv\'en wave is thought to play an important role in the dissipation of the large-amplitude Alfv\'en waves and in the heating of magnetized plasmas. Temperature anisotropy is frequently observed by spacecraft, including Parker Solar Probe (PSP), in the near-Sun solar wind, yet its impact on PDI in the near-Sun solar wind has been understudied. We calculate the maximum growth rates of PDI,...

arXiv Physics 8d ago

Can solar sails really send humans out into interstellar space?

Can solar sails really send humans out into interstellar space? "I think these are not far-out type of ideas; they are not really futuristic ideas that we are talking about." If humankind ever travels to distant stars, we might sail there — and it might be sooner than you think.

Space.com 10d ago