Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Phillips, Kenneth J. H."'
We review the terms, spectral radiance and spectral irradiance, and show how their precise definitions are crucial for interpreting observations made with different instruments covering widely different energy or wavelength ranges. We show how the us
Externí odkaz:
http://arxiv.org/abs/2403.14845
We report on calcium abundance $A({\rm Ca})$ estimates during the decay phases of 194 solar X-ray flares using archived data from the Bent Crystal Spectrometer (BCS) on Solar Maximum Mission (operational 1980~--~1989). The abundances are derived from
Externí odkaz:
http://arxiv.org/abs/2302.14668
Autor:
Dudnik, Oleksiy V., Sylwester, Janusz, Kowalinski, Miroslaw, Podgorski, Piotr, Phillips, Kenneth J. H.
We analyze variations of high-energy charged particle populations filling various magnetospheric regions under, inside, and outside of the Van Allen inner and outer electron radiation belts in May 2009. The study is based on the experimental data obt
Externí odkaz:
http://arxiv.org/abs/2208.04154
Chandra HETG spectra of the coronally active binary stars sigma Gem and HR 1099 are among the highest fluence observations for such systems taken at high spectral resolution in x-rays with this instrument. We compare their properties to solar flare s
Externí odkaz:
http://arxiv.org/abs/1304.0408
Autor:
Preś, Paweł, Phillips, Kenneth J. H.
Several coronal bright points identified in a quiet region of the Sun from SOHO/EIT Fe XII images are found to have a time evolution from birth to decay which is extremely well correlated with the rise and fall of magnetic flux as determined from pho
Externí odkaz:
http://arxiv.org/abs/astro-ph/9810451
Publikováno v:
Scientific American, 2001 Jun 01. 284(6), 40-47.
Externí odkaz:
https://www.jstor.org/stable/26059247
Publikováno v:
Current Science, 1999 Dec 01. 77(11), 1511-1520.
Externí odkaz:
https://www.jstor.org/stable/24105239
Publikováno v:
Scientific American Special Edition. Sep2003 Special Edition, Vol. 13 Issue 3, p4-11. 8p. 6 Color Photographs, 1 Black and White Photograph.