Helium focusing cone
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A helium focusing cone is a concentration of helium atoms that has passed through the Sun's heliosphere and is concentrated in a conical region on the opposite side from where the particles entered.{{cite journal |last1=Michaels |first1=J.G |last2=Raymond |first2=J.C. |last3=Bertaux |first3=J.L. |last4=Quémerais |first4=E. |last5=Lallement |first5=R. |last6=Ko |first6=Y.-K. |last7=Spadaro |first7=D.|last8=Gardner |first8=L.D. |title=The Helium Focusing Cone of the Local Interstellar Medium Close to the Sun |journal=The Astrophysical Journal |date=20 March 2002 |volume=568 |issue=1 |pages=385–395 |doi=10.1086/338764 |bibcode=2002ApJ...568..385M |url=https://iopscience.iop.org/article/10.1086/338764/pdf |access-date=9 February 2024}}
References
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External links
- [https://web.archive.org/web/20060113150723/http://www.edpsciences.org/articles/aa/abs/2004/42/aa0768/aa0768.html Observations of the helium focusing cone with pickup ions]
- [http://sci.esa.int/science-e/www/object/index.cfm?fobjectid=35853 The Flow of Interstellar Helium in the Solar System]
- [https://web.archive.org/web/20100220100458/http://science.nasa.gov/headlines/y2004/17dec_heliumstream.htm A Breeze from the Stars], NASA