Results 191 to 200 of about 3,039 (228)
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Ultraviolet Astronomy: Progress with the OAO
Science, 1970Allen L Hammond, A L Hammond
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THE RISE OF ULTRAVIOLET ASTRONOMY IN FRANCE
Journal of Astronomical History and Heritage, 2021France was one of the few countries able to launch rockets soon after the end of WWII. Some of these rockets were used to observe the Sun and other astronomical targets in the ultraviolet in the early 1960s. This program continued with the placement of French UV cameras and spectrographs in the French satellite D2B-Aura (1975), in two Soviet satellites
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Galactic Astronomy in the Ultraviolet
Solar System Research, 2017We propose a number of prospective observational programs for the ultraviolet space observatory WSO-UV, which seem to be of great importance to modern galactic astronomy. The programs include the search for binary Cepheids; the search and detailed photometric study and the analysis of radial distribution of UV-bright stars in globular clusters (“blue ...
A. S. Rastorguev +2 more
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Galactic ultraviolet astronomy
Reports on Progress in Physics, 1987A general presentation of astrophysical observations in the ultraviolet is given. First the particular nature of ultraviolet studies is emphasises. This is followed by a brief historical presentation of some of the typical instrumentation used. Then, in the framework of galactic observations, some of the most important results obtained concerning the ...
A Vadal-Madjar +5 more
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Aspheric grating for extreme ultraviolet astronomy
Applied Optics, 1978A family of plane curves is developed which can diffract incident parallel rays to a point focus. These curves, termed diffractoidal curves, are rotated around an axis to produce surfaces of revolution correspondingly termed diffractoids, whose imaging properties for sources at infinity are studied by ray tracing in a few examples.
S O, Kastner, C, Wade
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2003
This text describes the development of astronomy in the Extreme Ultraviolet (EUV) wavelength range, from the first rocket-based experiments in the late 1960s through to later satellite missions. Discussions of the results from important space projects are followed by an analysis of the contributions made by EUV astronomy to the study of specific groups
Martin A. Barstow, Jay B. Holberg
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This text describes the development of astronomy in the Extreme Ultraviolet (EUV) wavelength range, from the first rocket-based experiments in the late 1960s through to later satellite missions. Discussions of the results from important space projects are followed by an analysis of the contributions made by EUV astronomy to the study of specific groups
Martin A. Barstow, Jay B. Holberg
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A Discussion on astronomy in the ultraviolet - A study of variable stars in the ultraviolet
Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1975Abstract Some of the OAO-2 ultraviolet observations of intrinsically variable stars are discussed. New data is presented for the Ap variable t Cassiopeiae. The cepheid variables are illustrated by a Ursae Minoris. The explosive variables Nova Serpentis 1970, Nova Aquilae 1918, SS Cygni, and the 1972 supernova in NGC 5253 are compared.
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3A. Ultraviolet Astronomy (Non-IUE)
Transactions of the International Astronomical Union, 1988Results from the IUE satellite, summarized in the section which follows this one, continue to dominate the literature for research topics which rely on observations in the ultraviolet. This trend may be accentuated in the near future, as we experience the natural attrition of papers based on results from previous major missions which are no longer ...
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