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Article
Open AccessNear-infrared sky background fluctuations at mid- and low latitudes
The emission of the upper atmosphere introduces an additional variable component into observations of astronomical objects in the NIR 700–3,000 nm range. The subtraction of this component is not easy because i...
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Article
Jets And Arcs In The Coma Of Comet Hale-Bopp From August 1996 To April 1997
An observation program for measuring the activity of Comet Hale-Bopp was conducted at the Observatoire de Haute Provence from August 1996 to April 1997. Narrow band images were obtained from the 120 cm telesco...
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Article
Corrigendum: Near-ultraviolet and visible spectrophotometry of comet Halley from Vega 2
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Article
Spectroscopic study of comet Halley by the Vega 2 three-channel spectrometer
The three-channel spectrometer (TKS) aboard the Vega 2 spacecraft recorded infrared and visible spectra near the nucleus of comet Halley. Spectra in the range 0.95–1.9 µm at a distance of 300 km from the nucle...
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Article
Near-ultraviolet and visible spectrophotometry of comet Halley from Vega 2
We report results obtained by the near-ultraviolet and visible channel (V) of the TKS instrument1 carried by Vega 2 during the hour preceding its closest approach to comet Halley. The brightness of the OH (0, 0) ...