BEGIN:VCALENDAR VERSION:2.0 PRODID:researchseminars.org CALSCALE:GREGORIAN X-WR-CALNAME:researchseminars.org BEGIN:VEVENT SUMMARY:Patrick Antolin (Northumbria U.) DTSTART:20210211T143000Z DTEND:20210211T153000Z DTSTAMP:20260423T035936Z UID:CENTRA/30 DESCRIPTION:Title: Nanojets of coronal heating\nby Patrick Antolin (Northumbria U.) as pa rt of CENTRA Seminar\n\n\nAbstract\nThe solar corona is shaped and mysteri ously heated to millions of degrees by the Sun’s magnetic field. It has long been hypothesized that the heating results from a myriad of tiny magn etic energy outbursts called nanoflares\, driven by the fundamental proces s of magnetic reconnection. Misaligned magnetic field lines can break and reconnect\, producing nanoflares in avalanche-like processes. However\, no direct and unique observations of such nanoflares exist to date\, and the lack of a smoking gun has cast doubt on the possibility of solving the co ronal heating problem. From coordinated multi-band high-resolution observa tions\, we report on the discovery of very fast and bursty nanojets\, the telltale signature of reconnection-based nanoflares resulting in coronal h eating. The nanojet is uniquely characterised by being transverse to the l oop and appears as a unidirectional jet from the reconnection point. Isola ted and clustered nanojets are detected\, and a myriad are observed in an avalanche-like progression\, leading to the formation of a coronal loop. U sing state-of-the-art numerical simulations\, we demonstrate that the nano jet is a consequence of the slingshot effect from the magnetically tensed\ , curved magnetic field lines reconnecting at small angles. Nanojets are t herefore the key signature of reconnection-based coronal heating in action .\n LOCATION:https://researchseminars.org/talk/CENTRA/30/ END:VEVENT END:VCALENDAR