Results 171 to 180 of about 9,625 (210)
V3101 Cyg: A Cataclysmic Variable Born with a Brown Dwarf Donor
Ramirez S +7 more
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Space Science Reviews, 1965
A review is given of the present state of the problem of upper atmospheric emission, in relation to the processes which take place in that region.
V. I. Krasovskij, N. N. Šefov
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A review is given of the present state of the problem of upper atmospheric emission, in relation to the processes which take place in that region.
V. I. Krasovskij, N. N. Šefov
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Journal of Scientific Instruments, 1960
A simple, direct-reading and sensitive photometer which is easily transported and is independent of external power supplies is described. Details of the optical system and the electronic circuitry are given, and the performance of the apparatus is discussed.
B J O'Brien, G de la Harpe
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A simple, direct-reading and sensitive photometer which is easily transported and is independent of external power supplies is described. Details of the optical system and the electronic circuitry are given, and the performance of the apparatus is discussed.
B J O'Brien, G de la Harpe
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HF induced airglow: Double patches!
Physics and Chemistry of the Earth, Part B: Hydrology, Oceans and Atmosphere, 2000Abstract HF induced airglow has been observed at high latitudes on 21 February 1999 during a geomagnetically quiet period (Kp=1). This observation is unique because two patches were generated simultaneously on one occasion. The EISCAT Heating experiment (69.59° N, 19.23° E) was operated at 4.04 MHz (O-mode) in the local zenith from 16:48 to 18:28 UT ...
Kosch, M. +3 more
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Physics Today, 1950
The airglow is that part of the light from the night sky which originates in the upper atmosphere.
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The airglow is that part of the light from the night sky which originates in the upper atmosphere.
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Airglow I: Four Main Airglow Emissions
2002Airglowln a dark moonless night away from city light, a certain amount of light is observed to come from space whereby big letters can be read. Excluding light from stars, zodiac, galaxies and that scattered by the atmosphere, it is observed that the remaining light, which is about 40%, is produced by self luminescence of atmosphere.
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Planetary and Space Science, 1992
Abstract Airglow OH emissions originate from the mesopause and provide optical signatures of various physical and chemical processes occurring in this region of the upper atmosphere. Emissions from different vibrational levels of the mesopause OH (in the ground electronic state) may peak at different heights. roughly between 80 and 90 km.
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Abstract Airglow OH emissions originate from the mesopause and provide optical signatures of various physical and chemical processes occurring in this region of the upper atmosphere. Emissions from different vibrational levels of the mesopause OH (in the ground electronic state) may peak at different heights. roughly between 80 and 90 km.
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Jupiter's Nightside Airglow and Aurora
Science, 2007Observations of Jupiter's nightside airglow (nightglow) and aurora obtained during the flyby of the New Horizons spacecraft show an unexpected lack of ultraviolet nightglow emissions, in contrast to the case during the Voyager flybys in 1979. The flux and average energy of precipitating electrons generally decrease with increasing local time across the
Gladstone, GR +14 more
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Journal of Photochemistry, 1984
Abstract This survey of excitation processes for singlet O 2 in planetary atmospheres is intended to provide an introduction to the following papers in which laboratory investigations and field measurements are discussed in more detail. The three singlet states, a 1 Δ g , b 1 Σ g + and c 1 Σ u − , contribute to features in the airglows of ...
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Abstract This survey of excitation processes for singlet O 2 in planetary atmospheres is intended to provide an introduction to the following papers in which laboratory investigations and field measurements are discussed in more detail. The three singlet states, a 1 Δ g , b 1 Σ g + and c 1 Σ u − , contribute to features in the airglows of ...
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Ultraviolet Night Airglow of Venus
Science, 1979The night airglow spectrum of Venus in the ultraviolet is dominated by the v ′ = 0 progressions of the gamma and delta bands of nitric oxide. The bands are produced by two-body radiative recombination of nitrogen and oxygen atoms. Since the source of these atoms is in the dayside thermosphere, the night airglow is a
A I, Stewart, C A, Barth
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