Events List

DateEvent TypeSpeaker
04/01/2019CCPP Brown BagSiddharth Mishra-Sharma [ + ]
04/01/2019Blanton Tinker PullenBlanton Tinker Pullen [ + ]
04/02/2019Modjaz Group MtgModjaz Group Mtg [ + ]
04/02/2019Astro SeminarYashar Hezaveh [ + ]
04/02/2019Astroparticle Group Meet [ + ]
04/03/2019HEP SeminarTao Han [ + ]
04/04/2019Astro PhAstro Ph [ + ]
04/05/2019HEP Journal ClubHEP Journal Club [ + ]
04/05/2019ISCISC [ + ]
04/08/2019CCPP Brown BagJonathan Zrake [ + ]
04/08/2019Blanton Tinker PullenBlanton Tinker Pullen [ + ]
04/09/2019Modjaz Group MtgModjaz Group Mtg [ + ]
04/09/2019Astro SeminarChris Sheehy [ + ]
04/09/2019Astroparticle Group Meet [ + ]
04/10/2019EHT Press ConferencesEHT Press Conferences [ + ]
04/10/2019HEP SeminarDorota Grabowska [ + ]
04/11/2019Astro PhAstro Ph [ + ]
04/12/2019NYU-CCANYU-CCA [ + ]
04/12/2019HEP Journal ClubHEP Journal Club [ + ]
04/12/2019ISCISC [ + ]
04/15/2019NYU Time DomainNYU Time Domain [ + ]
04/15/2019CCPP Brown BagCedric Yu/Oliver Janssen [ + ]
04/15/2019Blanton Tinker PullenBlanton Tinker Pullen [ + ]
04/16/2019Modjaz Group MtgModjaz Group Mtg [ + ]
04/16/2019Astro SeminarCarles Badenes [ + ]
04/16/2019Astroparticle Group Meet [ + ]
04/16/2019Women in STEMWomen in STEM [ + ]
04/17/2019HEP SeminarIbrahima Bah [ + ]
04/18/2019Astro PhAstro Ph [ + ]
04/19/2019HEP Journal ClubHEP Journal Club [ + ]
04/19/2019ISCISC [ + ]
04/22/2019NYU Time DomainNYU Time Domain [ + ]
04/22/2019CCPP Pizza + CookiesCCPP Pizza + Cookies [ + ]
04/22/2019Blanton Tinker PullenBlanton Tinker Pullen [ + ]
04/22/2019Informal HEP TalkRoberto Franceschini [ + ]
04/23/2019Modjaz Group MtgModjaz Group Mtg [ + ]
04/23/2019Astro SeminarJonathan Zrake [ -- ]

Title: Particle acceleration by current-driven instabilities
Description: Many objects in the universe produce light by dissipating magnetic energy. Examples include solar flares, the nebulae surrounding pulsars, AGN jets, and gamma-ray bursts. Traditionally, magnetic energy dissipation and particle acceleration in these systems has been investigated from the microscopic point of view, focusing on magnetic reconnection around small-scale magnetic null points. I will present results from a research program that focuses instead on the macroscopic scales, paying particular attention to particle acceleration by unstable magnetic flux tubes. These structures are observed directly in the solar corona, and exist in magnetically accelerated outflows, including AGN jets and gamma-ray bursts. We have found, using fully kinetic particle-in-cell simulations, a particular class of current-driven instability that is an exceptionally efficient accelerator of non-thermal particles. The mechanism is a first-order Fermi-like process, whereby plasma particles execute curvature-drifting motion in the direction of a coherent, inductive (MHD-like) electric field, while diffusing in a turbulent magnetic field. This mechanism is distinct from the injection process reported to occur near reconnecting current layers, where the dominant acceleration term is the short-range unscreened (parallel) component of the electric field. (2:00 PM - 3:15 PM, 726 Broadway, 940, CCPP Seminar)
04/23/2019Astroparticle Group Meet [ + ]
04/24/2019HEP SeminarAsher Berlin [ + ]
04/25/2019Astro PhAstro Ph [ + ]
04/26/2019NYU-CCANYU-CCA [ + ]
04/26/2019HEP Journal ClubHEP Journal Club [ + ]
04/26/2019ISCISC [ + ]
04/29/2019NYU Time DomainNYU Time Domain [ + ]
04/29/2019CCPP Brown BagWolfgang Kerzendorf [ + ]
04/29/2019Blanton Tinker PullenBlanton Tinker Pullen [ + ]
04/29/2019MRSEC LectureMRSEC Lecture [ + ]
04/30/2019Modjaz Group MtgModjaz Group Mtg [ + ]
04/30/2019Astro SeminarAlice Shapley [ + ]
04/30/2019Astroparticle Group Meet [ + ]