Results 31 to 40 of about 3,640 (192)

Solar–Stellar Connection: X-Ray Flares to Energetic (E > 10 MeV) Particle Events

The Astrophysical Journal, 2023
Energetic particle environments are an important factor for the viability of life on exoplanets surrounding flare stars. In the heliosphere, large gradual solar energetic ( E > 10 MeV) particle (SEP) events are produced by shocks from fast coronal mass ...
S. W. Kahler, A. G. Ling
doaj   +1 more source

Solar Physics with the Square Kilometre Array [PDF]

, 2018
The Square Kilometre Array (SKA) will be the largest radio telescope ever built, aiming to provide collecting area larger than 1 km$^2$. The SKA will have two independent instruments, SKA-LOW comprising of dipoles organized as aperture arrays in ...
Kontar, E. P., Nindos, A., Oberoi, D.
core   +2 more sources

Solar evolution and extrema: current state of understanding of long-term solar variability and its planetary impacts

Progress in Earth and Planetary Science, 2021
The activity of stars such as the Sun varies over timescales ranging from the very short to the very long—stellar and planetary evolutionary timescales.
Dibyendu Nandy, Petrus C. H. Martens, Vladimir Obridko, Soumyaranjan Dash, Katya Georgieva   +4 more
doaj   +1 more source

Effect of stellar flares and coronal mass ejections on the atmospheric escape from hot Jupiters

Proceedings of the International Astronomical Union, 2021
AbstractSpectral observations in the Ly-α line have shown that atmospheric escape is variable and for the exoplanet HD189733b, the atmospheric evaporation goes from undetected to enhanced evaporation in a 1.5 years interval. To understand the temporal variation in the atmospheric escape, we investigate the effect of flares, winds, and CMEs on the ...
Gopal Hazra, Aline A. Vidotto, Stephen Carolan, Carolina Villarreal D’Angelo, Ward Manchester   +4 more
openaire   +3 more sources

Power-law Distribution of Solar Cycle–modulated Coronal Jets

The Astrophysical Journal Supplement Series, 2023
Power-law distributions have been studied as a significant characteristic of nonlinear dissipative systems. Since discovering the power-law distribution of solar flares that was later extended to nanoflares and stellar flares, it has been widely accepted
Jiajia Liu, Anchuan Song, David B. Jess, Jie Zhang, Mihalis Mathioudakis, Szabolcs Soós, Francis P. Keenan, Yuming Wang, Robertus Erdélyi   +8 more
doaj   +1 more source

Stellar magnetic activity – Star-Planet Interactions

EPJ Web of Conferences, 2015
Stellar magnetic activity is an important factor in the formation and evolution of exoplanets. Magnetic phenomena like stellar flares, coronal mass ejections, and high-energy emission affect the exoplanetary atmosphere and its mass loss over time.
Poppenhaeger, K.
doaj   +1 more source

Solar Wind and its Evolution [PDF]

, 2011
By using our previous results of magnetohydrodynamical simulations for the solar wind from open flux tubes, I discuss how the solar wind in the past is different from the current solar wind.
A Telleschi, AS Brun, BE Wood, BE Wood, DJ McComas, H Holweger, H Miyahara, I Ribas, J-F Donati, J-F Donati, J-F Donati, K Hakamada, L Mestel, LK Harra, M Gudel, M Gudel, M Landini, MG Stereborg, RA Kopp, RW Noyes, S Imada, SH Saar, SH Saar, T Sakao, TK Suzuki, TK Suzuki, TK Suzuki, TK Suzuki, TR Ayres, V Holzwarth, Weber EJ, Y-M Wang, Y-M Wang   +32 more
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Fractal Reconnection in Solar and Stellar Environments

, 2016
Recent space based observations of the Sun revealed that magnetic reconnection is ubiquitous in the solar atmosphere, ranging from small scale reconnection (observed as nanoflares) to large scale one (observed as long duration flares or giant arcades ...
A. Asai, A. Bemporad, A. Bhattacharjee, A. Veronig, A.R. Inglis, B.E. Schaefer, B.T. Tsurutani, C.D. Pike, C.Z. Cheng, D. Biskamp, D. Biskamp, D. Nogami, D.A. Uzdensky, D.E. McKenzie, D.E. McKenzie, D.M. Alexander, E. Pariat, E.N. Parker, E.P. Rubenstein, E.R. Priest, F. Miyake, F. Miyake, F. Moreno-Insertis, G.S. Choe, H. Isobe, H. Isobe, H. Ji, H. Kurokawa, H. Maehara, H. Maehara, H.P. Furth, J. Qiu, J. Zhang, J.A. Miller, J.E. Leake, J.F. Drake, J.W. Cirtain, K. A. P. Singh, K. Koyama, K. Nishida, K. Nishida, K. Ohki, K. Shibata, K. Shibata, K. Shibata, K. Shibata, K. Shibata, K. Shibata, K. Shibata, K. Shibata, K. Shibata, K. Shibata, K.A.P. Singh, K.A.P. Singh, L. Ni, L.-J. Guo, M. Aschwanden, M. Bárta, M. Karlicky, M. Ohyama, M. Ohyama, M. Shimizu, M. Shimojo, M. Shimojo, M. Takamoto, M. Yamada, M.G. Linton, Masamitsu Ohyama, N. Nishizuka, N. Nishizuka, N. Nishizuka, N. Nishizuka, N.F. Loureiro, N.F. Loureiro, P.A. Cassak, P.A. Cassak, P.A. Sturrock, P.F. Wyper, R. Samtaney, R.A. Kopp, R.C. Carrington, R.L. Fermo, S. Masuda, S. Notsu, S. Takasao, S. Takasao, S. Tanuma, S. Tsuneta, S. Tsuneta, S. Tsuneta, S. Zenitani, S. Zenitani, T. Hirayama, T. Magara, T. Shibayama, T. Tajima, T. Terasawa, T. Yokoyama, T. Yokoyama, T. Yokoyama, T. Yokoyama, U. Feldman, V. Archontis, W. Daughton, Y. Notsu, Y. Ono, Y.-M. Huang, Y.-M. Huang, Y.-M. Huang, Yuta Notsu, Z. Mei   +110 more
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Hot Jupiters and the evolution of stellar angular momentum [PDF]

, 2009
Giant planets orbiting main-sequence stars closer than 0.1 AU are called hot Jupiters. They interact with their stars affecting their angular momentum. Recent observations provide suggestive evidence of excess angular momentum in stars with hot Jupiters ...
A. F. Lanza, Alonso, Ammler-von Eiff, Anderson, Bakos, Bakos, Bakos, Bakos, Bakos, Bakos, Barbieri, Barge, Barnes, Barnes, Barnes, Bazot, Bean, Berger, Bessell, Bouchy, Bouchy, Bouchy, Bouvier, Burke, Cameron, Cameron, Catala, Chandrasekhar, Chandrasekhar, Charbonneau, Cohen, Cuntz, Deleuil, Demory, Dittmann, Dobbs-Dixon, Donati, Díaz, Fabrycky, Fares, Fernandez, Fischer, Flyer, Gibson, Gillon, Gillon, Gillon, Gu, Hartman, Hartman, Hebb, Hellier, Hellier, Henry, Heyvaerts, Holman, Irwin, Johns-Krull, Johnson, Johnson, Johnson, Joshi, Kashyap, Kjeldsen, Konacki, Konacki, Kovács, Lanza, Lanza, Lanza, Latham, Leger, Leigh, Levrard, Lin, Lister, Loeillet, Lovelace, Low, Mamajek, Mamajek, Maness, Mardling, Matsumura, McCullough, Minniti, Montalto, Moutou, Moutou, Moutou, Nagasawa, Narita, Narita, Neukirch, Noyes, Ohta, Papaloizou, Petit, Pollacco, Pont, Pont, Pont, Pont, Pont, Pont, Pont, Pál, Pál, Queloz, Rauer, Reiners, Régnier, Santos, Sato, Schmitt, Scholz, Shkolnik, Shkolnik, Shkolnik, Shporer, Shporer, Siess, Skillen, Smith, Snellen, Sozzetti, Sozzetti, Stempels, Terquem, Tinker, Torres, Torres, Torres, Triaud, Udalski, Udry, Vidotto, West, West, Winn, Winn, Winn, Winn, Winn, Winn, Winn, Winn, Wittenmyer, Wolf, Zhang, Zhang, Zhang   +151 more
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Constraining Stellar Coronal Mass Ejections through Multi-wavelength Analysis of the Active M Dwarf EQ Peg [PDF]

The Astrophysical Journal, 2018
Abstract Stellar coronal mass ejections remain experimentally unconstrained, unlike their stellar flare counterparts, which are observed ubiquitously across the electromagnetic spectrum. Low-frequency radio bursts in the form of a type II burst offer the best means of identifying and constraining the rate and properties of stellar CMEs ...
M. K. Crosley, R. A. Osten
openaire   +2 more sources