Results 1 to 10 of about 5,848,153 (284)

The fine structure of the rotational periods of the solar mean magnetic field

open access: yesOpen Astronomy, 2021
The data of mean magnetic field (MMF) of the Sun obtained at the Wilcox Solar Observatory (Stanford, USA) in 1975–2020 are analysed. It was concluded that the MMF maximum occurs, on average, 1.5–2 years later relative to the maximum of Wolf numbers.
Haneychuk Vasily Ivanovich   +1 more
doaj   +1 more source

Satellite Data Processing System (SDPS) users manual V1.0 [PDF]

open access: yes, 1989
SDPS is a menu driven interactive program designed to facilitate the display and output of image and line-based data sets common to telemetry, modeling and remote sensing.
Caruso, Michael, Dunn, Chris
core   +2 more sources

Sun Sensor Based on a Luminance Spiking Pixel Array [PDF]

open access: yes, 2017
We present a novel sun sensor concept. It is the very first sun sensor built with an address event representation spiking pixel matrix. Its pixels spike with a frequency proportional to illumination.
Carmona Galán, Ricardo   +4 more
core   +1 more source

The Sun’s Supergranulation [PDF]

open access: yesLiving Reviews in Solar Physics, 2010
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~megameters, a dynamical evolution time of 24--48~h, a strong 300--400~m/s (rms) horizontal flow component and a much weaker 20--30~m/s vertical
Rincon, Francois, Rieutord, Michel
openaire   +5 more sources

Isolated Sunspot with a Dark Patch in the Coronal Emission

open access: yesOpen Astronomy, 2012
On the base of the 17 GHz radio maps of the Sun taken with the Nobeyama Radio Heliograph we estimate plasma parameters in the specific region of the sunspot atmosphere in the active region AR 11312.
Bezrukov D. A.   +2 more
doaj   +1 more source

Optical instrumentation for chromospheric monitoring during solar cycle 25 at Paris and Côte d’Azur observatories

open access: yesJournal of Space Weather and Space Climate, 2020
We present the observing program proposed by Paris and Côte d’Azur Observatories for monitoring solar activity during the upcoming cycle 25 and providing near real time images and movies of the chromosphere for space-weather research and applications ...
Malherbe Jean-Marie   +2 more
doaj   +1 more source

Revealing Fifth-Grade Students’ Understanding of the Universe

open access: yesMimbar Sekolah Dasar, 2022
Previous research has shown that students at almost all levels have misconceptions about both the shapes and sizes of celestial bodies in space. This study is essential to conduct on the students who take space topic in their schools for the first time ...
Fatma Coştu   +2 more
doaj   +1 more source

The quiet sun at mm wavelengths as seen by ALMA

open access: yesFrontiers in Astronomy and Space Sciences, 2022
Solar observations at sub-mm, mm and cm wavelengths offer a straightforward diagnostic of physical conditions in the solar atmosphere because they yield measurement of brightness temperature which, for optically thick features, equals intrinsic ...
Costas E. Alissandrakis   +2 more
doaj   +1 more source

Latitudinal Distribution of Sunspot and North-South Asymmetry Revisited [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2018
The solar magnetic field plays a central role in the field of solar research, both theoretically and practically. Sunspots are an important observational constraint since they are considered a discernable tracer of emerged magnetic flux tubes, providing ...
Heon-Young Chang
doaj   +1 more source

Evaluation Data of Dried Vegetables and Fruits

open access: yesTurkish Journal of Agriculture: Food Science and Technology, 2021
Drying is the process of removing of the water that has destroying effect in food products by evaporation and. Research project on the basis of direct sun drying and solar greenhouse.
Necla Çağlarırmak   +1 more
doaj   +1 more source

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