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pro vyhledávání: '"Caplan, R"'
The so-called regularized Biot-Savart laws (RBSLs) provide an efficient and flexible method for modeling pre-eruptive magnetic configurations of coronal mass ejections (CMEs) whose characteristics are constrained by observational images and magnetic-
Externí odkaz:
http://arxiv.org/abs/2106.02789
Autor:
Linker, J. A., Heinemann, S. G., Temmer, M., Owens, M. J., Caplan, R. M., Arge, C. N., Asvestari, E., Delouille, V., Downs, C., Hofmeister, S. J., Jebaraj, I. C., Madjarska, M., Pinto, R., Pomoell, J., Samara, E., Scolini, C., Vrsnak, B.
Many scientists use coronal hole (CH) detections to infer open magnetic flux. Detection techniques differ in the areas that they assign as open, and may obtain different values for the open magnetic flux. We characterize the uncertainties of these me
Externí odkaz:
http://arxiv.org/abs/2103.05837
GPU accelerators have had a notable impact on high-performance computing across many disciplines. They provide high performance with low cost/power, and therefore have become a primary compute resource on many of the largest supercomputers. Here, we
Externí odkaz:
http://arxiv.org/abs/1811.02605
Autor:
Linker, J. A., Caplan, R. M., Downs, C., Riley, P, Mikic, Z, Lionello, R., Henney, C. J., Arge, C. N., Liu, Y., Derosa, M. L., Yeates, A., Owens, M. J.
The heliospheric magnetic field is of pivotal importance in solar and space physics. The field is rooted in the Sun's photosphere, where it has been observed for many years. Global maps of the solar magnetic field based on full disk magnetograms are
Externí odkaz:
http://arxiv.org/abs/1708.02342
Publikováno v:
2016 ApJ 823 53
We describe a method for the automatic mapping of coronal holes (CH) using simultaneous multi-instrument EUV imaging data. Synchronized EUV images from STEREO/EUVI A&B 195A and SDO/AIA 193A are preprocessed, including PSF deconvolution and the applic
Externí odkaz:
http://arxiv.org/abs/1510.04718
Publikováno v:
Phys. Fluids 26 (2014) 097101
The dynamics of vortex ring pairs in the homogeneous nonlinear Schr\"odinger equation is studied. The generation of numerically-exact solutions of traveling vortex rings is described and their translational velocity compared to revised analytic appro
Externí odkaz:
http://arxiv.org/abs/1404.4922
Autor:
Caplan, R. M.
We present a simple to use, yet powerful code package called NLSEmagic to numerically integrate the nonlinear Schr\"odinger equation in one, two, and three dimensions. NLSEmagic is a high-order finite-difference code package which utilizes graphic p
Externí odkaz:
http://arxiv.org/abs/1203.1263
Autor:
Caplan, R. M., Carretero-González, R.
An easy to implement modulus-squared Dirichlet (MSD) boundary condition is formulated for numerical simulations of time-dependent complex partial differential equations in multidimensional settings. The MSD boundary condition approximates a constant
Externí odkaz:
http://arxiv.org/abs/1110.0569
Autor:
Caplan, R. M., Carretero, R.
We describe and test an easy-to-implement two-step high-order compact (2SHOC) scheme for the Laplacian operator and its implementation into an explicit finite-difference scheme for simulating the nonlinear Schr\"odinger equation (NLSE). Our method r
Externí odkaz:
http://arxiv.org/abs/1109.1027
Publikováno v:
Math. Comput. Simulat. 82 (2012) 1150-1171
We revisit the topic of the existence and azimuthal modulational stability of solitary vortices (alias vortex solitons) in the two-dimensional (2D) cubic-quintic nonlinear Schr{\"o}dinger equation. We develop a semi-analytical approach, assuming that
Externí odkaz:
http://arxiv.org/abs/0910.5758