Results 61 to 70 of about 1,511,102 (293)
Formation of Hεin the solar atmosphere
Astronomy & Astrophysics, 2023 Context.In the solar spectrum, the Balmer series line Hεis a weak blend on the wing of Ca IIH. Recent high-resolution Hεspectroheliograms reveal a reversed granulation pattern and in some cases, even unique structures. It is apparent that Hεcould potentially be a useful diagnostic tool for the lower solar atmosphere.Aims.Our aim is to understand how ...
K. Krikova +2 more
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Solar Flare Ribbon Fronts. I. Constraining Flare Energy Deposition with IRIS Spectroscopy
The Astrophysical Journal, 2023 Spectral lines formed at lower atmospheric layers show peculiar profiles at the “leading edge” of ribbons during solar flares. In particular, increased absorption of the BBSO/GST He i λ 10830 line, as well as broad and centrally reversed profiles in the ...
Vanessa Polito +4 more
doaj +1 more source
Advanced Functional Materials, EarlyView.We present a scalable EC/TC hybrid smart window using a DCPE that enables tunable solar modulation (ΔTsol:15–43%), fast electrochromic switching (<90 s), and strong thermal blocking (10–14°C reduction). HPMC improves thermal stability, while an optimized ISL enhances EC performance.
Soyeon Kim +4 more
wiley +1 more source
Polar mesosphere summer echoes during the July 2000 solar proton event [PDF]
, 2004 International audienceThe influence of the solar proton event (SPE) 14?16 July 2000 on Polar Mesosphere Summer Echoes (PMSE) is examined. PMSE were observed by the Esrange VHF MST Radar (ESRAD) at 67°53'N, 21°06'E.
V. Barabash +9 more
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Visual Observations of the Solar Atmosphere [PDF]
Proceedings of the National Academy of Sciences, 1926 The spectrohelioscope, an instrument for observing the sun in monochromatic light, has been briefly described in a previous article. (1) The same optical parts employed in the preliminary work are now rigidly mounted in a vertical position in my new Solar Laboratory in Pasadena (a branch of the Mount Wilson Observatory).
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Which Solar Latitude Follows the Sunspot Cycle Exactly?
The Astrophysical Journal LettersThe large-scale convection in the Sun known as supergranulation is manifested as a network structure on the solar surface. The network cells have an average lifetime of 24 hr, a size of about 30 Mm, and a lane width of about 6 Mm.
K. P. Raju
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The Astrophysical Journal, 2023 We begin here a series of papers examining the chromospheric and coronal properties of solar active regions. This first paper describes an extensive data set of images from the Atmospheric Imaging Assembly on the Solar Dynamics Observatory curated for ...
Karin Dissauer +2 more
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Bacterial Cellulose‐Based Bilayer Passive Cooler for High‐Performance Radiative/Evaporative Cooling
Advanced Functional Materials, EarlyView.A sustainable bilayer passive cooler based on bacterial cellulose integrates radiative and evaporative cooling for efficient zero‐energy temperature reduction. The scalable, low‐carbon material shows strong potential for food preservation, low‐temperature storage, and cold‐chain logistics.
Yibing Zhang +6 more
wiley +1 more source
The effect of colour on the thermal performance of building integrated solar collectors [PDF]
, 2010 The use of solar collectors with coloured absorbers for water heating is an area of particular interest when considering their integration with buildings.
Carson, James K. +2 more
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Alfven Waves and Turbulence in the Solar Atmosphere and Solar Wind [PDF]
The Astrophysical Journal, 2007 We solve the problem of propagation and dissipation of Alfvenic turbulence in a model solar atmosphere consisting of a static photosphere and chromosphere, transition region, and open corona and solar wind, using a phenomenological model for the turbulent dissipation based on wave reflection.
VERDINI, ANDREA, VELLI, MARCO
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