Results 31 to 40 of about 7,837,864 (382)
High Energy Electron Signals from Dark Matter Annihilation in the Sun [PDF]
, 2010 In this paper we discuss two mechanisms by which high energy electrons resulting from dark matter annihilations in or near the Sun can arrive at the Earth.
Schuster, Philip +3 more
core +1 more source
Isolated Sunspot with a Dark Patch in the Coronal Emission
Open 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
Journal 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
Mimbar 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
Sun Sensor Based on a Luminance Spiking Pixel Array [PDF]
, 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
Detection of Planetary Transits Across a Sun-like Star [PDF]
Astrophysical Journal, 1999 We report high-precision, high-cadence photometric measurements of the star HD 209458, which is known from radial velocity measurements to have a planetary-mass companion in a close orbit.
D. Charbonneau +3 more
semanticscholar +1 more source
Latitudinal Distribution of Sunspot and North-South Asymmetry Revisited [PDF]
Journal 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
SUN: A Bayesian framework for saliency using natural statistics.
Journal of Vision, 2008 We propose a definition of saliency by considering what the visual system is trying to optimize when directing attention. The resulting model is a Bayesian framework from which bottom-up saliency emerges naturally as the self-information of visual ...
Lingyun Zhang +4 more
semanticscholar +1 more source
Insufficient Sun Exposure Has Become a Real Public Health Problem
International Journal of Environmental Research and Public Health, 2020 This article aims to alert the medical community and public health authorities to accumulating evidence on health benefits from sun exposure, which suggests that insufficient sun exposure is a significant public health problem. Studies in the past decade
L. Alfredsson +14 more
semanticscholar +1 more source
Is the Polar Region Different from the Quiet Region of the Sun?
, 2010 Observations of the polar region of the Sun are critically important for understanding the solar dynamo and the acceleration of solar wind. We carried out precise magnetic observations on both the North polar region and the quiet Sun at the East limb ...
Bellot Rubio +17 more
core +1 more source