Results 11 to 20 of about 135,512,841 (342)
The Chemical Composition of the Sun [PDF]
Annual Review of Astronomy and Astrophysics, 2009 We present a redetermination of the solar abundances of all available elements. The new results have very recently been published by Asplund et al. (Annu. Rev. Astron. Astrophys. 47:481, 2009).
Pat Scott +2 more
exaly +2 more sources
Global seismology of the Sun [PDF]
Living Reviews in Solar Physics, 2016 The seismic study of the Sun and other stars offers a unique window into the interior of these stars. Thanks to helioseismology, we know the structure of the Sun to admirable precision. In fact, our knowledge is good enough to use the Sun as a laboratory.
Sarbani Basu
exaly +2 more sources
The Sun’s supergranulation [PDF]
Living Reviews in Solar Physics, 2018 Supergranulation is a fluid-dynamical phenomenon taking place in the solar photosphere, primarily detected in the form of a vigorous cellular flow pattern with a typical horizontal scale of approximately 30–35 Mm, a dynamical evolution time of 24–48 h, a
F. Rincon, M. Rieutord
semanticscholar +6 more sources
The chemical make-up of the Sun: A 2020 vision [PDF]
Astronomy & Astrophysics, 2021 Context. The chemical composition of the Sun is a fundamental yardstick in astronomy, relative to which essentially all cosmic objects are referenced. As such, having accurate knowledge of the solar elemental abundances is crucial for an extremely broad ...
M. Asplund, A. Amarsi, N. Grevesse
semanticscholar +1 more source
Staring at the Sun with the Keck Planet Finder: An Autonomous Solar Calibrator for High Signal-to-noise Sun-as-a-star Spectra [PDF]
Publications of the Astronomical Society of the Pacific, 2023 Extreme precision radial velocity (EPRV) measurements contend with internal noise (instrumental systematics) and external noise (intrinsic stellar variability) on the road to 10 cm s−1 “exo-Earth” sensitivity.
R. Rubenzahl +13 more
semanticscholar +1 more source
PROGRESS IN THE STUDY OF DECAMETER-WAVELENGTH SOLAR RADIO EMISSION WITH UKRAINIAN RADIO TELESCOPES. Part 1. (Invited paper) [PDF]
Radio Physics and Radio Astronomy, 2023 Subject and Purpose. Results are presented of the solar corona investigations performed with the world famous Ukrainian radio telescopes. The work has been aimed at offering a consistent review of recent achievements in observations of a variety of low ...
A. A. Stanislavsky +3 more
doaj +1 more source
PROGRESS IN THE STUDY OF DECAMETER-WAVELENGTH SOLAR RADIO EMISSION WITH UKRAINIAN RADIO TELESCOPES. Part 2 [PDF]
Radio Physics and Radio Astronomy, 2023 Subject and Purpose. This part of the paper continues presentation of results of the solar radio emission studies performed with Ukrainian radio telescopes over the past 20 years.
A. A. Stanislavsky +3 more
doaj +1 more source
Short-Lived Radionuclides in Meteorites and the Sun's Birth Environment [PDF]
Astronomical Society of the Pacific Conference Series, 2022 The solar nebula contained a number of short-lived radionuclides (SLRs) with half-lives of tens of Myr or less, comparable to the timescales for formation of protostars and protoplanetary disks.
S. Desch +4 more
semanticscholar +1 more source
Downward and Upward Propagating Magneto-Acoustic Waves Over a Solar Limb Prominence [PDF]
Iranian Journal of Astronomy and Astrophysics, 2023 Prominences are cold and dense chromospheric material suspended in the solar atmosphere with the support of coronal magnetic fields. Oscillatory behavior of a limb core prominence is studied in the AIA 171, 193, 211, 335, and 94 \AA\ passbands of AIA ...
Neda Dadashi, Maryam Ghiassi
doaj +1 more source
A Study of the Sublime in Rumi's Masnavi and Diwan-e Shams in Light of Kant's Sublime Theory [PDF]
Matn/Pizhūhī-i Adabī, 2020 According to Kant, the sublime is found in a phenomenon that can be conceived in infinity. The grandeur and glory of a high mountain or the magnitude and greatness of a sea impart an admirable sense of helplessness and fear (hope and fear).
Farzad Baloo
doaj +1 more source