Results 51 to 60 of about 45,836 (218)

Conditions for arrival of solar energetic protons in Earth after strong solar flares

Solar-Terrestrial Physics, 2022
We analyze the Sun-to-Earth transport of energetic protons accelerated in solar flares. We use a model which assumes that protons move earthward in the Parker electromagnetic field.
Kichigin G. N., Kravtsova M. V., Sdobnov V. E.   +2 more
doaj   +1 more source

New classification parameter of solar flares based on the maximum flux in soft X-rays and on duration of flare

, 2020
Solar flare activity is characterised by different classification systems, both in optical and X-ray ranges. The most generally accepted classifications of solar flares describe important parameters of flares such as the maximum of brightness of the ...
Bruevich, Elena
core  

X-ray flares in Orion young stars. I. Flare characteristics

, 2008
Pre-main sequence (PMS) stars are known to produce powerful X-ray flares which resemble magnetic reconnection solar flares scaled by factors up to 10^4.
Drake J. J., Eric D. Feigelson, Giuseppina Micela, Gordon P. Garmire, Hiei E., Isobe H., Jardine M., Konstantin V. Getman, Patrick S. Broos, Reale F., Reale F., Serio S., Siess L., Sylwester B.   +13 more
core   +1 more source

Commission 10: Solar Activity [PDF]

, 2007
Commission 10 aims at the study of various forms of solar activity, including networks, plages, pores, spots, fibrils, surges, jets, filaments/prominences, coronal loops, flares, coronal mass ejections (CMEs), solar cycle, microflares, nanoflares ...
Benz, A.O., Craig, Ian J.D., Gopalswamy, N., Harrison, R.A., Klimchuk, James A., Kozlovsky, B.Z., Melrose, Donald B., Poletto, G., Schrijver, K.J., Van Driel-Gesztelyi, L., Wang, J.-X.   +10 more
core   +2 more sources

Research Direction and Science Evaluation: The Role of Coherence and Alignment

Journal of Economics &Management Strategy, EarlyView.
ABSTRACT The decisions of funding agencies greatly influence the direction of scientific research; however, our understanding of how applicants' research directions affect the selection process remains limited. In this study, we investigate how a project's coherence with a scientist's previous work and its alignment with current scientific trends ...
Charles Ayoubi, Sandra Barbosu, Michele Pezzoni, Fabiana Visentin   +3 more
wiley   +1 more source

Unified Relationship between Cold Plasma Ejections and Flare Energies Ranging from Solar Microflares to Giant Stellar Flares

The Astrophysical Journal, 2023
We often find spectral signatures of chromospheric cold plasma ejections accompanied by flares in a wide range of spatial scales in the solar and stellar atmospheres.
Yuji Kotani, Kazunari Shibata, Takako T. Ishii, Daiki Yamasaki, Kenichi Otsuji, Kiyoshi Ichimoto, Ayumi Asai   +6 more
doaj   +1 more source

Scaling laws of solar and stellar flares

, 2007
In this study we compile for the first time comprehensive data sets of solar and stellar flare parameters, including flare peak temperatures T_p, flare peak volume emission measures EM_p, and flare durations t_f from both solar and stellar data, as well ...
Doyle J. G., Jakimiec J., Maggio A., Manuel Gudel, Markus J. Aschwanden, Mewe R., Pan H. C., Robert A. Stern, Shimizu T., Tsuru T.   +9 more
core   +1 more source

Analysis and modeling of high temporal resolution spectroscopic observations of flares on AD Leo [PDF]

, 2006
We report the results of a high temporal resolution spectroscopic monitoring of the flare star AD Leo. During 4 nights, more than 600 spectra were taken in the optical range using the Isaac Newton Telescope (INT) and the Intermediate Dispersion ...
Abada-Simon, Abdul-Aziz, Abranin, Arzner, Audard, Ayres, B. H. Foing, Balega, Berdyugina, Butler, Byrne, Byrne, Canfield, Cargill, Chabrier, Crespo-Chacón, Cully, D. García-Alvarez, D. Montes, Datlowe, Delfosse, Ding, Donati-Falchi, Doyle, Doyle, Doyle, Doyle, Doyle, Drake, Eason, Favata, Forbes, Fuhrmeister, Gan, Garcia-Alvarez, García-Alvarez, Gershberg, Gershberg, Gray, Gunn, Gunn, Güdel, Güdel, Güdel, Haisch, Hawley, Hawley, Hawley, Heinzel, Henry, Houdebine, Houdebine, Houdebine, Houdebine, I. Crespo-Chacón, Ivanova, J. López-Santiago, Jevremovic, Johns-Krull, Kashyap, Katsova, Konstantinova-Antova, Kopp, Kunkel, Lang, Lin, López-Santiago, M. J. Fernández-Figueroa, Maggio, Mauas, Mirzoyan, Moffett, Montes, Montes, Montes, Pallavicini, Pallavicini, Pettersen, Pettersen, Pettersen, Pettersen, Pettersen, Phillips, Reale, Robrade, Saar, Sanz-Forcada, Simon, Smith, Spiesman, Sundland, Toner, Torczon, van den Besselaar   +93 more
core   +3 more sources

Econometrics at the Extreme: From Quantile Regression to QFAVAR1

Journal of Economic Surveys, EarlyView.
ABSTRACT This paper surveys quantile modelling from its theoretical origins to current advances. We organize the literature and present core econometric formulations and estimation methods for: (i) cross‐sectional quantile regression; (ii) quantile time series models and their time series properties; (iii) quantile vector autoregressions for ...
Stéphane Goutte, Konstantinos N. Konstantakis, Dimitris Konstantios, Panayotis G. Michaelides, Arsenios‐Georgios N. Prelorentzos   +4 more
wiley   +1 more source

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

Experimental Physiology, EarlyView.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source