Results 41 to 50 of about 3,193 (251)
Photometry of Irregular Satellites of Uranus and Neptune [PDF]
The Astrophysical Journal, 2004 13 pages (including 3 figures and 2 tables).
Grav, Tommy +2 more
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Direct imaging of irregular satellite discs in scattered light [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT Direct imaging surveys have found that long-period super-Jupiters are rare. By contrast, recent modelling of the widespread gaps in protoplanetary discs revealed by Atacama Large Millimetre Array suggests an abundant population of smaller Neptune to Jupiter-mass planets at large separations.
Loic Nassif-Lachapelle, Daniel Tamayo
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Vestnik MGTU, 2018 Results of observations of variations of temperature, electron concentration and total electron content of the high-latitude region of the ionosphere during its modification by powerful short radio waves of the heating complex EISCAT/Heating (Tromsø ...
Tereshchenko E. D. +4 more
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Colors of Irregular Satellites of Saturn with DECam
, 2022 We report g-r and r-i new colors for 21 Saturn Irregular Satellites, among them, 4 previously unreported. This is the highest number of Saturn Irregular satellites reported in a single survey. These satellites were measured by "stacking" their observations to increase their signal without trailing.
Peña, J., Fuentes, C.
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Colors and Shapes of the Irregular Planetary Satellites [PDF]
The Astronomical Journal, 2018 Abstract It is widely recognized that the irregular satellites of the giant planets were captured from initially heliocentric orbits. However, the mechanism of capture and the source region from which they were captured both remain unknown. We present an optical color survey of 43 irregular satellites of the outer planets conducted using
Graykowski, Ariel, Jewitt, David
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The Planetary Science JournalWe report the discovery and careful orbital determination of 64 new irregular moons of Saturn found in images taken using the Canada–France–Hawaii Telescope from 2019 to 2021, bringing the total number of Saturnian irregulars to 122.
Edward Ashton +3 more
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LIGHT POLLUTION IN LEO-SATELLITE TRACKING
Odessa Astronomical Publications, 2016 Because of the high level of the light pollution in Odessa city, only the observations of LEO (low Earth orbit)-satellites are performed in the main office of the Astronomical observatory of Odessa National University named after I.I. Mechnikov.
L. S. Shakun +5 more
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Frontiers in Remote Sensing, 2022 This paper investigates the backscatter evolution and surface changes of ice aprons (IAs) by exploiting time series of X- and C-band SAR images from PAZ and Sentinel-1 satellites.
Suvrat Kaushik +8 more
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Advanced Engineering Materials, EarlyView.Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar +7 more
wiley +1 more source
New Moons of Uranus and Neptune from Ultradeep Pencil-beam Surveys
The Astronomical JournalWe have conducted extremely ultradeep pencil-beam observations for new satellites around both Uranus and Neptune. Tens of images on several different nights in 2021, 2022, and 2023 were obtained, shifted, and added together to reach as faint as 26.9 and ...
Scott S. Sheppard +6 more
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