{"id":2318,"date":"2021-12-02T00:00:11","date_gmt":"2021-12-02T00:00:11","guid":{"rendered":"https:\/\/www.istp.cnr.it\/?post_type=product&#038;p=2318"},"modified":"2022-05-29T10:30:18","modified_gmt":"2022-05-29T10:30:18","slug":"turbulent-magnetogenesis-in-a-collisionless-plasma","status":"publish","type":"product","link":"https:\/\/www.istp.cnr.it\/it\/research-product\/turbulent-magnetogenesis-in-a-collisionless-plasma\/","title":{"rendered":"Turbulent Magnetogenesis in a Collisionless Plasma"},"content":{"rendered":"<p>We demonstrate an efficient mechanism for generating magnetic fields in turbulent, collisionless plasmas. By using fully kinetic, particle-in-cell simulations of an initially nonmagnetized plasma, we inspect the genesis of magnetization, in a nonlinear regime. The complex motion is initiated via a Taylor-Green vortex, and the plasma locally develops strong electron temperature anisotropy, due to the strain tensor of the turbulent flow. Subsequently, in a domino effect, the anisotropy triggers a Weibel instability, localized in space. In such active wave-particle interaction regions, the seed magnetic field grows exponentially and spreads to larger scales due to the interaction with the underlying stirring motion. Such a self-feeding process might explain magnetogenesis in a variety of astrophysical plasmas, wherever turbulence is present. variety of astrophysical plasmas, wherever turbulence is present.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Pucci F.; Viviani M.; Valentini F.; Lapenta G.; Matthaeus W.H.; Servidio S.<\/p>\n","protected":false},"featured_media":2388,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_cat":[574,520],"product_tag":[712,713,714,711],"class_list":["post-2318","product","type-product","status-publish","has-post-thumbnail","hentry","product_cat-journal-articles","product_cat-space-and-astrophysical-plasmas","product_tag-interstellar-medium","product_tag-plasma-astrophysics","product_tag-plasma-physics","product_tag-interstellar-magnetic-fields","prodpage-style2"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.istp.cnr.it\/it\/wp-json\/wp\/v2\/product\/2318","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.istp.cnr.it\/it\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.istp.cnr.it\/it\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.istp.cnr.it\/it\/wp-json\/wp\/v2\/comments?post=2318"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.istp.cnr.it\/it\/wp-json\/wp\/v2\/media\/2388"}],"wp:attachment":[{"href":"https:\/\/www.istp.cnr.it\/it\/wp-json\/wp\/v2\/media?parent=2318"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.istp.cnr.it\/it\/wp-json\/wp\/v2\/product_cat?post=2318"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.istp.cnr.it\/it\/wp-json\/wp\/v2\/product_tag?post=2318"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}