Results 101 to 110 of about 4,034,717 (373)
A Role of Proto-Accretion Disk Heating Proto-Planets to Evaporation [PDF]
Journal of Astronomy and Space Sciences, 2002 We study a role of the proto-accretion disk during the formation of the planetary system, which is motivated with recent X-ray observations. There is an observational correlation of the mass of extrasolar planets with their orbital period, which also ...
Heon-Young Chang, Chul-Sung Choi
doaj +1 more source
Asteroid masses obtained with INPOP planetary ephemerides
Monthly Notices of the Royal Astronomical Society, 2019 ABSTRACT In this paper, we present masses of 103 asteroids deduced from their perturbations on the orbits of the inner planets, in particular Mars and the Earth. These determinations and the INPOP19a planetary ephemerides are improved by the recent Mars orbiter navigation data and the updated orbit of Jupiter based on the Juno mission ...
Agnes Fienga +3 more
openaire +4 more sources
A Survey for Planetary-mass Brown Dwarfs in the Chamaeleon I Star-forming Region [PDF]
, 2017 We have performed a search for planetary-mass brown dwarfs in the Chamaeleon I star-forming region using proper motions and photometry measured from optical and infrared images from the Spitzer Space Telescope, the Hubble Space Telescope, and ground ...
T. Esplin +5 more
semanticscholar +1 more source
Factors Affecting the Radii of Close-in Transiting Exoplanets [PDF]
, 2012 The radius of an exoplanet may be affected by various factors, including irradiation, planet mass and heavy element content. A significant number of transiting exoplanets have now been discovered for which the mass, radius, semi-major axis, host star ...
A. Collier Cameron +54 more
core +2 more sources
Advanced Functional Materials, EarlyView.[001]‐oriented Sb2Se3 film with improved crystallinity and adjusted composition is achieved via a new thermal treatment approach consisting of preliminary annealing of the Sb layer before its selenization. The findings of this work demonstrate enhanced charge carriers' transportation, a stable performance, and an improvement of H2 generation from ...
Magno B. Costa +7 more
wiley +1 more source
Convective Mixing in Gas Giant Planets with Primordial Composition Gradients
The Astrophysical JournalLinking atmospheric measurements to the bulk planetary composition and ultimately the planetary origin is a key objective in planetary science. In this work, we identify the cases in which the atmospheric composition represents the bulk composition.
Henrik Knierim, Ravit Helled
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Development of the low backlash planetary gearbox for humanoid robots [PDF]
FME Transactions, 2017 The low backlash planetary gearbox as a substitute for a harmonic drive in humanoid robotics, is presented in this paper. After analysis of the contemporary designs of the low backlash coaxial toothed gearboxes, a concept of planetary gearbox with taper ...
Penčić Marko +2 more
doaj
Lessons from the Ionised and Molecular Mass of Post-CE PNe
Galaxies, 2022 Close binary evolution is widely invoked to explain the formation of axisymmetric planetary nebulae after a brief common envelope phase. The evolution of the primary would be interrupted abruptly, its still quite massive envelope being fully ejected to ...
Miguel Santander-García +4 more
doaj +1 more source
Optical and Near-infrared Spectra of σ Orionis Isolated Planetary-mass Objects [PDF]
, 2017 We have obtained low-resolution optical (0.7–0.98 μm) and near-infrared (1.11–1.34 μm and 0.8–2.5 μm) spectra of 12 isolated planetary-mass candidates (J = 18.2–19.9 mag) of the 3 Myr σ Orionis star cluster with the aim of determining the spectroscopic ...
M. Z. Zapatero Osorio +2 more
semanticscholar +1 more source