Shuster JR, Chen L-J, Daughton WS, Lee LC, Lee KH, Bessho N, Torbert RB, Li G, Argall MR. Highly structured electron anisotropy in collisionless reconnection exhausts. Geophysical Research Letters [Internet]. 2014 :n/a––n/a. Publisher's VersionAbstract
Results from two-dimensional particle-in-cell simulations of collisionless magnetic reconnection with zero guide field discussed in this paper reveal that around the time when the reconnection rate peaks, electron velocity distributions become highly structured in magnetic islands and open exhausts. Rings, arcs, and counterstreaming beams are generic and lasting components of the exhaust electron distributions. The temporal dependence of electron distributions provides a perspective to explain an outstanding discrepancy concerning the degree of electron anisotropy in reconnection exhausts and enables inference of the reconnection phase based on observed anisotropic electron distributions. Some of the structures predicted by our simulations are confirmed by measurements from the Cluster spacecraft during its encounter with reconnection exhausts in the magnetotail.
Chen L, Argall MR, Shuster JR, Li G, Karimabadi H, Daughton WS, Germaschewski K, Torbert RB, Bhattacharjee A. Magnetopause reconnection under various space weather conditions. AGU Fall Meeting Abstracts. 2013;1 :2148.
Posch JL, Engebretson MJ, Roisen ND, Perrin JB, Breneman AW, Kersten K, Wygant JR, Kletzing C, Lessard M, Argall MR, et al. Pc1 Waves Observed by the Van Allen Probes and at Halley, Antarctica. AGU Fall Meeting Abstracts. 2013;1 :2140.
Shuster JR, Chen L, Zrzavy A, Mishra S, Argall MR, Li G, Mouikis C, Daughton WS, Torbert RB, Yoo J, et al. Plasma energization in asymmetric magnetic reconnection at the dayside magnetopause during magnetic storms. AGU Fall Meeting Abstracts. 2013;1 :2147.
Argall MR, Chen L, Torbert RB, Daughton WS, Karimabadi H, Yoo J, Yamada M. Two distinct transition regions within the exhaust during asymmetric magnetopause reconnection. AGU Fall Meeting Abstracts [Internet]. 2013;1 :3. Publisher's Version
Argall MR, Caide A, Chen L, Torbert RB. A method for combining search coil and fluxgate magnetometer data to reveal finer structures in reconnection physics. AGU Fall Meeting Abstracts. 2012;1 :2259.
Young M, Lessard M, Kim H, Argall M. Statistical Study of ULF Pc 1-2 Wave Propagation Characteristics in the High Latitude Ionospheric Waveguide. AGU Spring Meeting Abstracts. 2009;1 :4.
Argall MR, Lessard MR, Kim H, Engebretson M. Pc 1-2 wave ducting within the ionospheric wave guide. AGU Fall Meeting Abstracts. 2008;1 :1671.
Argall MR, Lessard M, Kim H, Mouikis C, Smith C, Engebretsen M, Rogers B. Pi1B Pulsations and Fast Flows. AGU Fall Meeting Abstracts. 2007;1 :1193.
Argall M, Engebretson MJ, Johnson JE, Posch JL, Rowland DE, Chen S, Moore TE, Peterson WK, Onsager TG, Johnson JR, et al. Pc 1-2 waves and associated ion distributions observed during three extended conjunctions between the Polar satellite and Antarctic ground stations. AGU Fall Meeting Abstracts. 2005;1 :1182.