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A Discussion on astronomy in the ultraviolet - A search for ultraviolet objects
Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1975Abstract The observations of the sky-survey telescope in the TD-1A satellite are being searched for ultraviolet objects. The first results, covering about 10 % of the sky, are presented and rough limits on space density and luminosity are derived.
D. J. Carnochan +4 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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A Discussion on astronomy in the ultraviolet - Stellar studies in the balloon ultraviolet
Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1975Abstract Observations with a spectral resolution of 0.01 nm have been made for several stars in the balloon ultraviolet. For the two coolest stars studied ((3 Ori and a Lyr) wavelengths of all observed spectral features in the range 273-288 nm are given with an accuracy of approximately ± 0.004 nm.
B. Bates +6 more
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Skylab ultraviolet stellar astronomy experiment S019
Applied Optics, 1977An objective-prism stellar spectrograph of 15-cm aperture was flown on all three Skylab missions. The wavelength region from 1300 A to 5000 A was covered by a special optical system containing a combination of reflecting telescope optics, a CaF(2) objective prism, and an achromatized field corrector lens system of CaF(2) and LiF.
F G, O'Callaghan, K G, Henize, J D, Wray
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Ultraviolet, optical and infrared astronomy
Physics Today, 1982While it is possible to trace the history of ultraviolet, optical and infrared astronomy to an era before that of the pre-Christian Greek astronomers at Alexandria, the field is not as static as this maturity might suggest. The flowering of space astronomy and the orders-of-magnitude improvement in detector technology give us exploratory capabilities ...
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A Discussion on astronomy in the ultraviolet - Interstellar gas studies in the balloon ultraviolet
Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1975Abstract Spectral observations at a resolution of 0.1 A covering the region 2870—2740 A have been made of several stars with an objective grating spectrograph mounted on a balloon-borne star-stabilized platform. We report our measurements of the interstellar lines of Mg II at 2795.53 A and 2802.70 A and Mg i at 2852.13 A.
A. Boksenberg +8 more
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Ultraviolet Astronomy: Observational Aspects
1967The several disciplines which are incorporated under the heading ‘space research’ can be placed into the two broad categories of geophysics and astronomy. No hard and fast demarcation can be drawn and a considerable region of overlap exists, including, for example, the moon and planets.
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Ultraviolet and X-Ray Astronomy
2016This chapter discusses the astrophysics with photons having an energy up to hundreds of keV. X-rays are not able to penetrate atmosphere and space based observatories are needed. Telescopes for UV and softX-rays use reflective elements based on grazing incidence.
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A Discussion on astronomy in the ultraviolet - The ultraviolet spectrum of ζ Tauri
Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1975Abstract This report describes a study of the ultraviolet spectrum of the B-shell star, Tauri. The observational material consists of high-dispersion spectrograms obtained from a rocket experiment launched in November 1972. The spectra cover the wavelength interval, 1100-2050 A, with a resolution of about 0.1 A. The u.v. stellar lines
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