The Astrophysical Journal

Journal Information
ISSN / EISSN : 0004637X / 15384357
Current Publisher: American Astronomical Society (10.3847)
Former Publisher: University of Chicago Press (10.1086) , IOP Publishing (10.1088)
Total articles ≅ 118,494
Google Scholar h5-index: 163
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Latest articles in this journal

T. Rees-Crockford, D. S. Bloomfield, E. Scullion, S.-H. Park
The Astrophysical Journal, Volume 897; doi:10.3847/1538-4357/ab92a0

Abstract:
The role of ideal-MHD instabilities in a prominence eruption is explored through 2D and 3D kinematic analysis of an event observed with the Solar Dynamics Observatory and the Solar Terrestrial Relations Observatory between 22:06 UT on 2013 February 26 and 04:06 UT on 2013 February 27. A series of 3D radial slits are used to extract height–time profiles ranging from the midpoint of the prominence leading edge to the southeastern footpoint. These height–time profiles are fit with a kinematic model combining linear and nonlinear rise phases, returning the nonlinear onset time (t nl) as a free parameter. A range (1.5–4.0) of temporal power indices (i.e., β in the nonlinear term ) are considered to prevent prescribing any particular form of nonlinear kinematics. The decay index experienced by the leading edge is explored using a radial profile of the transverse magnetic field from a PFSS extrapolation above the prominence region. Critical decay indices are extracted for each slit at their own specific values of height at the nonlinear phase onset (h(t nl)) and filtered to focus on instances resulting from kinematic fits with (restricting β to 1.9–3.9). Based on this measure of the critical decay index along the prominence structure, we find strong evidence that the torus instability is the mechanism driving this prominence eruption. Defining any single decay index as being "critical" is not that critical because there is no single canonical or critical value of decay index through which all eruptions must succeed.
Katherine E. Whitaker, Marijn Franx, Joel Leja, Pieter G. Van Dokkum, Alaina Henry, Rosalind E. Skelton, Mattia Fumagalli, Ivelina G. Momcheva, Gabriel B. Brammer, Ivo Labbé, et al.
The Astrophysical Journal, Volume 896; doi:10.3847/1538-4357/ab98fc

Jennifer B. Bergner, Karin I. Öberg, Edwin A. Bergin, Ryan A. Loomis, Jamila Pegues, Chunhua Qi
The Astrophysical Journal, Volume 896; doi:10.3847/1538-4357/ab98f7

Jacob Haqq-Misra, Eric Wolf, Manoj Joshi, Xi Zhang, Ravi Kumar Kopparapu
The Astrophysical Journal, Volume 896; doi:10.3847/1538-4357/ab9a4b

Bon-Chul Koo, Hyun-Jeong Kim, Yong-Hyun Lee, John C. Raymond, Jae-Joon Lee, Sung-Chul Yoon, Dae-Sik Moon
The Astrophysical Journal, Volume 896; doi:10.3847/1538-4357/ab980c

Nat Gopalswamy, Sachiko Akiyama, Seiji Yashiro
The Astrophysical Journal, Volume 897; doi:10.3847/2041-8213/ab9b7b

Y. Tsukamoto, Masahiro N. Machida, H. Susa, H. Nomura, S. Inutsuka
The Astrophysical Journal, Volume 896; doi:10.3847/1538-4357/ab93d0

Guillermo Torres, Andrew Vanderburg, Jason L. Curtis, Adam L. Kraus, Aaron C. Rizzuto, Michael J. Ireland
The Astrophysical Journal, Volume 896; doi:10.3847/1538-4357/ab911b

Xuheng Ding, Tommaso Treu, John D. Silverman, Aklant K. Bhowmick, N. Menci, Tiziana Di Matteo
The Astrophysical Journal, Volume 896; doi:10.3847/1538-4357/ab91be

Honghui Liu, Haiyang Wang, Askar B. Abdikamalov, Dimitry Ayzenberg, Cosimo Bambi
The Astrophysical Journal, Volume 896; doi:10.3847/1538-4357/ab917a

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