Results 21 to 30 of about 112,391 (274)

Long term changes in EUV and X-ray emissions from the solar corona and chromosphere as measured by the response of the Earth’s ionosphere during total solar eclipses from 1932 to 1999 [PDF]

Annales Geophysicae, 2001
Measurements of the ionospheric E region during total solar eclipses in the period 1932–1999 have been used to investigate the fraction of Extreme Ultra Violet and soft X-ray radiation, 8, that is emitted from the limb corona and chromosphere.
C. J. Davis, C. J. Davis, E. M. Clarke, R. A. Bamford, M. Lockwood, S. A. Bell   +5 more
doaj   +1 more source

The radial evolution of solar wind speeds [PDF]

, 2011
The WSA-ENLIL model predicts significant evolution of the solar wind speed. Along a flux tube the solar wind speed at 1.0 AU and beyond is found to be significantly altered from the solar wind speed in the outer corona at 0.1 AU, with most of the change ...
Arge, C. N., Hughes, W. J., McGregor, S. L., Odstrcil, D., Schwadron, Nathan A.   +4 more
core   +3 more sources

Seamlessly Overcoming Biological Barriers with a Small Photosensitizer to Treat Metastatic Tumors with Photodynamic Therapy

Angewandte Chemie, EarlyView.
LUZ 51 is a relatively small and amphiphilic photosensitizer that accumulates in poorly‐vascularized tumors, is rapidly internalized by cancer cells, does not elicit skin photosensitivity and triggers robust immunological responses that reduce spontaneous metastasis.
Mafalda Penetra, Bárbara Lima, João P. A. Campos, Sara M. A. Pinto, Fábio A. Schaberle, Mariette M. Pereira, Luis G. Arnaut, Lígia C. Gomes‐da‐Silva   +7 more
wiley   +2 more sources

Co-existence of two plasma phases in solar and AGN coronas [PDF]

Serbian Astronomical Journal, 1998
Here we have juxtaposed two distant cosmic locations of the Sun and AGN where neutral hydrogen appears in a close connection with hot coronas. Besides the solar photosphere, chromosphere and prominences where the presence of neutral hydrogen is ...
Kubičela A., Arsenijević J., Popović L.Č., Trajković N., Bon E.   +4 more
doaj   +1 more source

ORFEES – a radio spectrograph for the study of solar radio bursts and space weather applications

Journal of Space Weather and Space Climate, 2021
Radio bursts are sensitive tracers of non-thermal electron populations in the solar corona. They are produced by electron beams and shock waves propagating through the corona and the heliosphere, and by trapped electron populations in coronal mass ...
Hamini Abdallah, Auxepaules Gabriel, Birée Lionel, Kenfack Guy, Kerdraon Alain, Klein Karl-Ludwig, Lespagnol Patrice, Masson Sophie, Coutouly Lucile, Fabrice Christian, Romagnan Renaud   +10 more
doaj   +1 more source

Chromospheric Anemone Jets as Evidence of Ubiquitous Reconnection

, 2008
The heating of the solar chromosphere and corona is a long-standing puzzle in solar physics. Hinode observations show the ubiquitous presence of chromospheric anemone jets outside sunspots in active regions.
A. M. Title, B. W. Lites, Cirtain, H. Watanabe, K. Ichimoto, K. Otsuji, K. Shibata, Katsukawa, N. Nishizuka, Okamoto, R. A. Shine, R. Kitai, S. Nagata, S. Nozawa, S. Tsuneta, S. UeNo, T. D. Tarbell, T. E. Berger, T. J. Okamoto, T. Kawate, T. Matsumoto, T. Nakamura, T. Shimizu, Y. Katsukawa, Y. Suematsu   +24 more
core   +1 more source

Editorial to the Special Issue “Solar Wind Structures and Phenomena: Origins, Properties, Geoeffectiveness, and Prediction”

Universe, 2023
The heliosphere is filled with solar wind, which is formed due to the expansion of the plasma of hot solar corona [...]
Yuri I. Yermolaev, Vladimir A. Slemzin, Volker Bothmer   +2 more
doaj   +1 more source

Alfvén Wave Connection between the Chromosphere and the Corona of the Sun: An Analytical Study

The Astrophysical Journal, 2023
Alfvén waves are closely relevant to the three outstanding problems in the solar corona: coronal heating, solar wind acceleration, and the fractionization of low first ionization potential (FIP) elements.
Jongchul Chae, Kyoung-Sun Lee
doaj   +1 more source

Tsallis non-extensive statistics, intermittent turbulence, SOC and chaos in the solar plasma. Part two: Solar Flares dynamics

, 2012
In the second part of this study and similarly with part one, the nonlinear analysis of the solar flares index is embedded in the non-extensive statistical theory of Tsallis [1].
Abramenko, Arimitsu, Arimitsu, Arimitsu, Arimitsu, Arimitsu, Arimitsu, Binney, Chang, Chang, Chang, Chen, de Moura, Elsner, Ferri, Frisch, Frisch, G.P. Pavlos, Grassberger, Kolmogorov, Krommes, L.P. Karakatsanis, Lyra, M.N. Xenakis, Marsch, Meneveau, Meneveau, Pavlos, Pavlos, Pavlos, Pavlos, Sano, Shlesinger, Strauss, Takens, Tarasov, Tarasov, Tarasov, Tarasov, Theiler, Theiler, Tsallis, Tsallis, Tsallis, Tsallis, Zaslavsky, Zelenyi, Zhang   +47 more
core   +1 more source

Multiwavelength Observations of a B-class Flare Using XSM, AIA, and XRT

The Astrophysical Journal, 2023
We present multiwavelength observations by Chandrayaan-2/Solar X-ray Monitor, Solar Dynamics Observatory/Atmospheric Imaging Assembly, and Hinode/X-Ray Telescope (XRT) of a B-class flare observed on 2021 February 25, originating from an active region (AR
Yamini K. Rao, B. Mondal, Giulio Del Zanna, N. P. S. Mithun, S. V. Vadawale, K. K. Reeves, Helen E. Mason, Anil Bhardwaj   +7 more
doaj   +1 more source