Results 31 to 40 of about 45,836 (218)

No Evidence Supporting Flare Driven High-Frequency Global Oscillations

, 2012
The underlying physics that generates the excitations in the global low-frequency, < 5.3 mHz, solar acoustic power spectrum is a well known process that is attributed to solar convection; However, a definitive explanation as to what causes excitations in
A. Ambastha, A.C. Donea, A.G. Kosovichev, A.G. Kosovichev, A.G. Kosovichev, B. Kumar, B. Kumar, B. Kumar, B. Kumar, C. Karoff, C.L. Wolff, D.A. Haber, D.C. Braun, F. Hill, F. Hill, J.R. Kennedy, J.R. Kennedy, K. G. Stassun, M. Richardson, R. Howe, R.W. Komm, S. Chakraborty, T. Foglizzo, V.G. Gavryusev   +23 more
core   +1 more source

Solar Radio Bursts with Spectral Fine Structures in Preflares [PDF]

, 2014
A good observation of preflare activities is important for us to understand the origin and triggering mechanism of solar flares, and to predict the occurrence of solar flares.
Huang, Jing, Karlický, Marian, Mészárosová, Hana, Simões, Paulo, Tan, Baolin, Tan, Chengming, Zhang, Yin   +6 more
core   +2 more sources

Statistical research into low-power solar flares. Main phase duration

Solar-Terrestrial Physics, 2017
This paper is a sequel to earlier papers on time parameters of solar flares in the Hα line. Using data from the International Flare Patrol, an electronic database of solar flares for the period 1972–2010 has been created.
Borovik A.V., Zhdanov A.A.
doaj   +1 more source

Modeling Solar Energetic Neutral Atoms from Solar Flares and CME-driven Shocks

The Astrophysical Journal, 2023
We examine the production of energetic neutral atoms (ENAs) in solar flares and coronal mass ejection (CME)-driven shocks and their subsequent propagation to 1 au. Time profiles and fluence spectra of solar ENAs at 1 au are computed for two scenarios: (1)
Gang Li, Albert Y. Shih, Robert C. Allen, George C. Ho, Christina M. S. Cohen, Mihir Desai, Maher A. Dayeh, Glenn M. Mason   +7 more
doaj   +1 more source

Lithium-6 from Solar Flares [PDF]

, 2000
By introducing a hitherto ignored Li-6 producing process, due to accelerated He-3 reactions with He-4, we show that accelerated particle interactions in solar flares produce much more Li-6 than Li-7.
Benzion Kozlovsky, J. P. Thibaud, Mandzhavidze N., Murphy R. J., Natalie Mandzhavidze, Ramaty R., Reames D. V., Reuven Ramaty, Ritzenhoff S., Vincent Tatischeff   +9 more
core   +2 more sources

Solar Fuels Via Methane Valorization: Thermochemical Pathways, Unified Metrics, and Techno‐Economic Perspectives

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A first‐of‐its‐kind review benchmarks three solar methane valorization pathways with unified performance metrics for clean fuel production. Meeting global climate targets and sustainable energy demands requires carbon‐neutral fuels and innovative conversion pathways.
Muhammad Abdulmoez, Amjad Othman, Majid Linjawi, Amro Al‐Qutub   +3 more
wiley   +1 more source

Properties of Flares-Generated Seismic Waves on the Sun

, 2005
The solar seismic waves excited by solar flares (``sunquakes'') are observed as circular expanding waves on the Sun's surface. The first sunquake was observed for a flare of July 9, 1996, from the Solar and Heliospheric Observatory (SOHO) space mission ...
A. G. Kosovichev, A.-C. Donea, A.-C. Donea, A.G. Kosovichev, A.G. Kosovichev, A.G. Kosovichev, A.G. Kosovichev, A.G. Kosovichev, C.L. Wolff, D.C. Braun, G.H. Fisher, G.J. Hurford, G.J. Hurford, J.J. Podesta, J.J. Podesta, K. Shibata, M. Medrek, M.A. Livshits, N.D. Kostiuk, P.A. Sturrock, P.H. Scherrer, T.E. Abdelatif, T.L. Duvall Jr., Z. Svestka   +23 more
core   +1 more source

On the flare induced high-frequency global waves in the Sun [PDF]

, 2010
Recently, Karoff and Kjeldsen (2008) presented evidence of strong correlation between the energy in the high-frequency part (5 ...
Chaplin, Donea, Donea, García, Haber, Harvey, Jiménez, Jiménez-Reyes, Karoff, Kumar, Kumar, Leibacher, Scherrer, Torrence, Ulrich, Ulrich, Venkatakrishnan, Zharkova   +17 more
core   +1 more source

Sequential Reduction of Chromite Pellets Using Hydrogen and Silicon Carbide for Carbon Emission Abatement During Ferrochrome Production

steel research international, EarlyView.
H2 prereduction selectively metallizes Fe in UG2 chromite pellets at 1100°C, while silicon carbide becomes active at 1300°C to convert remaining Cr2O3 to carbides and promote Cr metallization. By separating the roles of H2 and SiC, the sequential route reaches up to 65.7% Cr metallization and suppresses in‐furnace CO generation by ≈75% versus ...
D. Coertzen, M. Tangstad, J. P. Beukes, P. G. van Zyl, D. G. Bessarabov, S. P. du Preez   +5 more
wiley   +1 more source

Konus-Wind and Helicon-Coronas-F Observations of Solar Flares

, 2014
Results of solar flare observations obtained in the Konus-Wind experiment from November, 1994 to December, 2013 and in the Helicon Coronas-F experiment during its operation from 2001 to 2005, are presented.
Aptekar, R. L., Charikov, Yu. E., Frederiks, D. D., Golenetskii, S. V., Kokomov, A. A., Pal'shin, V. D., Sokolova, Z. Ya., Svinkin, D. S., Tsvetkova, A. E., Ulanov, M. V.   +9 more
core   +1 more source