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Advanced materials for multilayer mirrors for extreme ultraviolet solar astronomy
Applied Optics, 2016We provide an analysis of contemporary multilayer optics for extreme ultraviolet (EUV) solar astronomy in the wavelength ranges: λ=12.9-13.3 nm, λ=17-21 nm, λ=28-33 nm, and λ=58.4 nm. We found new material pairs, which will make new spaceborne experiments possible due to the high reflection efficiencies, spectral resolution, and long-term ...
S A, Bogachev +7 more
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Scientific American, 1994
▪ Abstract Astronomical studies in the extreme ultraviolet (EUV) band of the spectrum were dismissed during the early years of space astronomy as impossible, primarily because of the mistaken view that radiation in this band would be absorbed by the interstellar medium.
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▪ Abstract Astronomical studies in the extreme ultraviolet (EUV) band of the spectrum were dismissed during the early years of space astronomy as impossible, primarily because of the mistaken view that radiation in this band would be absorbed by the interstellar medium.
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Astronomy and the Extreme Ultraviolet Explorer satellite
Science, 1994The extreme ultraviolet wave band (100 to 912 angstroms) was thought until recently to be useless to astronomy, primarily because the opacity of the interstellar medium would prevent observations at these wavelengths. However, the interstellar medium has been found to be markedly inhomogeneous in both density and ionization state and the sun is ...
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Innovations in Optical Technologies for Extreme Ultraviolet Astronomy
Space Optics for Astrophysics and Earth and Planetary Remote Sensing, 1988Extreme ultraviolet (EUV) astronomy has been a late arrival to the scene of space astronomy. Part of the reason for this was an incorrect appraisal of incomplete astronomical knowledge, which lead to the belief that, intrinsically, this kind of astronomy could not be carried out.
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Polarimetry of extreme ultraviolet lines in solar astronomy
Optical Engineering, 1991Ways are suggested in which recent advancements in the fabrication of ultrasmooth, low scatter flow-polished mirror substrates and high-quality multilayer and interference film coatings can be used to create novel optical instruments for observing linear-polarization effects in the outer solar atmosphere.
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<title>Normal Incidence Multilayer Mirrors For Extreme Ultraviolet Astronomy</title>
SPIE Proceedings, 1984Robert A. Stern +3 more
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The Solar Orbiter EUI instrument: The Extreme Ultraviolet Imager
Astronomy and Astrophysics, 2020Hardi Peter +2 more
exaly
Ca II H&K stellar activity parameter: a proxy for extreme ultraviolet stellar fluxes
Astronomy and Astrophysics, 2020Kevin France +2 more
exaly