Editing Solar wind (section)

=== Velocity and density ===
Near the Earth's orbit at 1 [[astronomical unit]] (AU) the plasma flows at speeds ranging from 250 to 750&nbsp;km/s with a density ranging between 3 and 10 particles per cubic centimeter and temperature ranging from 10<sup>4</sup> to 10<sup>6</sup> [[kelvin]].<ref>{{Cite web |last=NOAA |date= |title=REAL TIME SOLAR WIND |url=https://www.swpc.noaa.gov/products/real-time-solar-wind |access-date=June 12, 2022}}</ref>

On average, the plasma density decreases with the square of the distance from the Sun,<ref name=:0>{{Cite journal |last1=Borgazzi |first1=A. |last2=Lara |first2=A. |last3=Echer |first3=E. |last4=Alves |first4=M. V. |date=May 2009 |title=Dynamics of coronal mass ejections in the interplanetary medium |journal=Astronomy & Astrophysics |volume=498 |issue=3 |pages=885–889 |bibcode=2009A&A...498..885B |doi=10.1051/0004-6361/200811171 |issn=0004-6361 |doi-access=free}}</ref>{{rp|at=Sect. 2.4}} while the velocity decreases and flattens out at 1&nbsp;AU.<ref name=:0 />{{rp|at=Fig. 5}}

[[Voyager 1]] and [[Voyager 2]] reported plasma density ''n'' between 0.001 and 0.005&nbsp;particles/cm<sup>3</sup> at distances of 80 to 120&nbsp;AU, increasing rapidly beyond 120&nbsp;AU at [[heliosphere|heliopause]] to between 0.05 and 0.2&nbsp;particles/cm<sup>3</sup>.<ref>{{Cite journal |last1=Gurnett |first1=D. A. |last2=Kurth |first2=W. S. |date=2019-11-04 |title=Plasma densities near and beyond the heliopause from the Voyager 1 and 2 plasma wave instruments |url=https://www.nature.com/articles/s41550-019-0918-5 |journal=Nature Astronomy |language=en |volume=3 |issue=11 |pages=1024–1028 |doi=10.1038/s41550-019-0918-5 |bibcode=2019NatAs...3.1024G |s2cid=209934074 |issn=2397-3366}}</ref>