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pro vyhledávání: '"SOLAR INSTRUMENTS"'
Akademický článek
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Publikováno v:
The Astrophysical Journal, Vol 975, Iss 2, p 283 (2024)
We present progress on the translational tomography technique for measuring the three-dimensional structure of the corona from near-perihelion Wide-field Imager for Parker Solar Probe (WISPR) image sequences. Translational tomography makes use of non
Externí odkaz:
https://doaj.org/article/468a6b9215c14d9a8db79727a046b845
Publikováno v:
The Astrophysical Journal, Vol 974, Iss 1, p 32 (2024)
Coronal mass ejections (CMEs) expel multithermal, magnetized plasma from the Sun, and when directed toward Earth, can cause extensive damage to space and ground-based electronics. To better understand the triggering, acceleration, and evolution of CM
Externí odkaz:
https://doaj.org/article/e93bfc0871104caf8fb03e75a10c7df9
Publikováno v:
The Astrophysical Journal, Vol 967, Iss 2, p 162 (2024)
Full-disk spectroscopic observations of the solar corona are highly desired to forecast solar eruptions and their impact on planets and to uncover the origin of solar wind. In this paper, we introduce a new multislit design (five slits) to obtain ext
Externí odkaz:
https://doaj.org/article/c9a94ebba6a847f4a06b10caa8f5e4a4
Autor:
Devojyoti Kansabanik, Surajit Mondal, Divya Oberoi, James O. Chibueze, N. E. Engelbrecht, R. D. Strauss, E. P. Kontar, G. J. J. Botha, P. J. Steyn, Amoré E. Nel
Publikováno v:
The Astrophysical Journal, Vol 961, Iss 1, p 96 (2024)
Solar radio emissions provide several unique diagnostics to estimate different physical parameters of the solar corona, which are otherwise simply inaccessible. However, imaging the highly dynamic solar coronal emissions spanning a large range of ang
Externí odkaz:
https://doaj.org/article/5b923b5b7fc94e46a8a7d5f8defc4d6a
Autor:
Xiya Wei, Changhui Rao
Publikováno v:
The Astrophysical Journal, Vol 961, Iss 1, p 52 (2024)
Correlating the Shack–Hartmann wave front sensor (SH-WFS) with extended targets is widely used in solar adaptive optics systems. This paper aims to introduce a theoretical analysis that evaluates the accuracy of the SH-WFS on extended sources, with
Externí odkaz:
https://doaj.org/article/ae03787044ed473cb6ed6307f808c7d8
Publikováno v:
The Astrophysical Journal, Vol 952, Iss 2, p 138 (2023)
Judge et al. recently argued that a region of the solar spectrum in the near-UV between about 250 and 290 nm is optimal for studying magnetism in the solar chromosphere, due to an abundance of Mg ii , Fe ii , and Fe i lines that sample various height
Externí odkaz:
https://doaj.org/article/6f193c3aa55c4b70966fe8dca2f6a318
Publikováno v:
The Astrophysical Journal, Vol 950, Iss 2, p 100 (2023)
We use observations taken with a novel solar telescope spectroheliograph to investigate the association between the early filament rise and coronal mass ejections (CMEs). The instrument allows the H _α full line profile to be registered in each pixe
Externí odkaz:
https://doaj.org/article/495e6fa690b740cd8f98bb7fcecc5c25
Autor:
Giulio Del Zanna, Jenna Samra, Austin Monaghan, Chad Madsen, Paul Bryans, Edward DeLuca, Helen Mason, Ben Berkey, Alfred de Wijn, Yeimy J. Rivera
Publikováno v:
The Astrophysical Journal Supplement Series, Vol 265, Iss 1, p 11 (2023)
The Airborne Infrared Spectrometer (AIR-Spec) offers an unprecedented opportunity to explore the near-infrared (NIR) wavelength range. It has been flown at two total solar eclipses, in 2017 and 2019. The wavelength range of the much-improved instrume
Externí odkaz:
https://doaj.org/article/15a25daed2544b598d570a2340d29a68
Autor:
Eunsu Park, Harim Lee, Yong-Jae Moon, Jin-Yi Lee, Il-Hyun Cho, Kyoung-Sun Lee, Daye Lim, Hyun-Jin Jeong, Jae-Ok Lee
Publikováno v:
The Astrophysical Journal Supplement Series, Vol 264, Iss 2, p 33 (2023)
In this study, we suggest a pixel-to-pixel image translation method among similar types of filtergrams such as solar extreme-ultraviolet (EUV) images. For this, we consider a deep-learning model based on a fully connected network in which all pixels
Externí odkaz:
https://doaj.org/article/5c4ccf45e50a45abbe9bcf63423a369d