Zobrazeno 1 - 10
of 303
pro vyhledávání: '"Pascoe, P J"'
Autor:
Anfinogentov, Sergey A., Antolin, Patrick, Inglis, Andrew R., Kolotkov, Dmitrii, Kupriyanova, Elena G., McLaughlin, James A., Nisticò, Giuseppe, Pascoe, David J., Prasad, S. Krishna, Yuan, Ding
We review novel data analysis techniques developed or adapted for the field of coronal seismology. We focus on methods from the last ten years that were developed for extreme ultraviolet (EUV) imaging observations of the solar corona, as well as for
Externí odkaz:
http://arxiv.org/abs/2112.13577
Autor:
Nakariakov, V. M., Anfinogentov, S. A., Antolin, P., Jain, R., Kolotkov, D. Y., Kupriyanova, E. G., Li, D., Magyar, N., Nistico, G., Pascoe, D. J., Srivastava, A. K., Terradas, J., Farahani, S. Vashegani, Verth, G., Yuan, D., Zimovets, I. V.
Publikováno v:
Space Science Reviews, 2021, Volume 217, Issue 6, article id.73
Kink oscillations of coronal loops, i.e., standing kink waves, is one of the most studied dynamic phenomena in the solar corona. The oscillations are excited by impulsive energy releases, such as low coronal eruptions. Typical periods of the oscillat
Externí odkaz:
http://arxiv.org/abs/2109.11220
Autor:
Li, B., Antolin, P., Guo, M. -Z., Kuznetsov, A. A., Pascoe, D. J., Van Doorsselaere, T., Farahani, S. Vasheghani
Characterized by cyclic axisymmetric perturbations to both the magnetic and fluid parameters, magnetohydrodynamic fast sausage modes (FSMs) have proven useful for solar coronal seismology given their strong dispersion. This review starts by summarizi
Externí odkaz:
http://arxiv.org/abs/2010.16023
We present the Solar Bayesian Analysis Toolkit (SoBAT) which is a new easy to use tool for Bayesian analysis of observational data, including parameter inference and model comparison. SoBAT is aimed (but not limited) to be used for the analysis of so
Externí odkaz:
http://arxiv.org/abs/2005.05365
We present a model for the intensity of optically thin EUV emission for a plasma atmosphere. We apply our model to the solar corona as observed using the six optically thin EUV channels of the SDO/AIA instrument. The emissivity of the plasma is calcu
Externí odkaz:
http://arxiv.org/abs/2003.13497
Autor:
Broomhall, Anne-Marie, Davenport, James R. A., Hayes, Laura A., Inglis, Andrew R., Kolotkov, Dmitrii Y., McLaughlin, James A., Mehta, Tishtrya, Nakariakov, Valery M., Notsu, Yuta, Pascoe, David J., Pugh, Chloe E., Van Doorsselaere, Tom
Quasi-periodic pulsations (QPPs) appear to be a common feature observed in the light curves of both solar and stellar flares. However, their quasi-periodic nature, along with the fact that they can be small in amplitude and short-lived, makes QPPs di
Externí odkaz:
http://arxiv.org/abs/1910.08458
Publikováno v:
Frontiers in Astronomy and Space Sciences (2019), 6, 38
Recent observations with the Atmospheric Imaging Assembly (AIA) instrument on the SDO spacecraft have revealed the existence of decayless coronal kink oscillations. These transverse oscillations are not connected to any external phenomena like flares
Externí odkaz:
http://arxiv.org/abs/1906.02001
Publikováno v:
A&A 616, A125 (2018)
Kink oscillations of a coronal loop are observed and studied in detail because they provide a unique probe into the structure of coronal loops through MHD seismology and a potential test of coronal heating through the phase-mixing of Alfv\'en waves.
Externí odkaz:
http://arxiv.org/abs/1804.10562
Autor:
Murawski, K., Kayshap, P., Srivastava, A. K., Pascoe, D. J., Jelínek, P., Kuźma, B., Fedun, V.
We perform numerical simulations of impulsively generated magnetic swirls in an isolated flux tube which is rooted in the solar photosphere. These swirls are triggered by an initial pulse in a horizontal component of the velocity. The initial pulse i
Externí odkaz:
http://arxiv.org/abs/1710.08179
This short review paper gives an overview of recently observed transverse, propagating velocity perturbations in coronal loops. These ubiquitous perturbations are observed to undergo strong damping as they propagate. Using 3D numerical simulations of
Externí odkaz:
http://arxiv.org/abs/1510.00976