Search Results - "Blamont, J. E."
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European Venus Explorer: An in-situ mission to Venus using a balloon platform
Published in Advances in space research (01-07-2009)“…Planetary balloons have a long history already. A small super-pressure balloon was flown in the atmosphere of Venus in the eighties by the Russian-French VEGA…”
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Ultraviolet Spectrometer Observations of Neptune and Triton
Published in Science (American Association for the Advancement of Science) (15-12-1989)“…Results from the occultation of the sun by Neptune imply a temperature of 750 $\pm $ 150 kelvins in the upper levels of the atmosphere (composed mostly of…”
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Ultraviolet Spectrometer Observations of Uranus
Published in Science (American Association for the Advancement of Science) (04-07-1986)“…Data from solar and stellar occultations of Uranus indicate a temperature of about 750 kelvins in the upper levels of the atmosphere (composed mostly of atomic…”
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The Vega Venus Balloon Experiment
Published in Science (American Association for the Advancement of Science) (21-03-1986)“…In June 1985, two instrumented balloons were placed in the atmosphere of Venus as part of the VEGA mission. Each balloon traveled about 30 percent of the way…”
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Extreme Ultraviolet Observations from Voyager 1 Encounter with Saturn
Published in Science (American Association for the Advancement of Science) (10-04-1981)“…The global hydrogen Lyman α, helium (584 angstroms), and molecular hydrogen band emissions from Saturn are qualitatively similar to those of Jupiter, but the…”
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Extreme Ultraviolet Observations from Voyager 1 Encounter with Jupiter
Published in Science (American Association for the Advancement of Science) (01-06-1979)“…Observations of the optical extreme ultraviolet spectrum of the Jupiter planetary system during the Voyager 1 encounter have revealed previously undetected…”
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Overview of VEGA Venus Balloon in Situ Meteorological Measurements
Published in Science (American Association for the Advancement of Science) (21-03-1986)“…The VEGA balloons made in situ measurements of pressure, temperature, vertical wind velocity, ambient light, frequency of lightning, and cloud particle…”
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Implications of the VEGA Balloon Results for Venus Atmospheric Dynamics
Published in Science (American Association for the Advancement of Science) (21-03-1986)“…Both VEGA balloons encountered vertical winds with typical velocities of 1 to 2 meters per second. These values are consistent with those estimated from mixing…”
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Vertical profiles of dust and ozone in the martian atmosphere deduced from solar occultation measurements
Published in Nature (London) (19-10-1989)“…A research experiment conducted aboard the Phobos 2 spacecraft discovered that relatively large numbers of solid dust particles in the martian atmosphere open…”
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European Venus Explorer (EVE): an in-situ mission to Venus
Published in Experimental astronomy (01-03-2009)“…The European Venus Explorer (EVE) mission was proposed to the European Space Agency in 2007, as an M-class mission under the Cosmic Vision Programme. Although…”
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VEGA Balloon Dynamics and Vertical Winds in the Venus Middle Cloud Region
Published in Science (American Association for the Advancement of Science) (21-03-1986)“…The VEGA balloons provided a long-term record of vertical wind fluctuations in a planetary atmosphere other than Earth's. The vertical winds were calculated…”
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Extreme Ultraviolet Observations from Voyager 2 Encounter with Jupiter
Published in Science (American Association for the Advancement of Science) (23-11-1979)“…Extreme ultraviolet spectral observations of the Jovian planetary system made during the Voyager 2 encounter have extended our knowledge of many of the…”
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VEGA Balloon System and Instrumentation
Published in Science (American Association for the Advancement of Science) (21-03-1986)“…The VEGA Venus balloon radio transmissions received on Earth were used to measure the motion of the balloons and to obtain the data recorded by onboard sensors…”
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Thermal Structure of the Venus Atmosphere in the Middle Cloud Layer
Published in Science (American Association for the Advancement of Science) (21-03-1986)“…Thermal structure measurements obtained by the two VEGA balloons show the Venus middle cloud layer to be generally adiabatic. Temperatures measured by the two…”
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Vertical profile of stratospheric ozone by lidar sounding from the ground
Published in Nature (London) (01-11-1977)“…The laser experimental setup for measuring stratospheric ozone in the altitude range 18-25 km by a differential absorption technique at the Haute-Provence…”
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Solar occultation spectroscopic measurements of the martian atmosphere at 1.9 and 3.7 μm
Published in Nature (London) (19-10-1989)“…WE present solar occultation measurements, taken from Phobos 2, of the H2O and CO2 bands at 1.9 μm and of the dust absorption at 1.9 and 3.7 μin. From these,…”
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Determination of Venus Winds by Ground-based Radio Tracking of the VEGA Balloons
Published in Science (American Association for the Advancement of Science) (21-03-1986)“…A global array of 20 radio observatories was used to measure the three-dimensional position and velocity of the two meteorological balloons that were injected…”
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Possible evidence for penetration of interstellar dust into the Solar System
Published in Nature (London) (01-01-1976)“…Because of the motion of the Sun through the surrounding interstellar medium, interstellar dust particles may penetrate deep into the solar system. In this…”
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Temperature measurement of interplanetary-interstellar hydrogen
Published in Nature (London) (10-11-1977)“…Results obtained with a Ly-alpha photometer aboard the Prognoz-5 spacecraft are used to measure the temperature of interplanetary-interstellar hydrogen. A…”
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Composition of comet Halley dust particles from Vega observations
Published in Nature (London) (15-05-1986)“…The first direct measurements of the physical and chemical properties of cometary dust, obtained by the dust impact mass analyzer aboard Vega 1 and 2 studying…”
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