Results 21 to 30 of about 893,483 (290)
Science, 1998 A planet orbiting in a disk of planetesimals can experience an instability in which it migrates to smaller orbital radii. Resonant interactions between the planet and planetesimals remove angular momentum from the planetesimals, increasing their eccentricities.
Murray, Norm +3 more
openaire +3 more sources
Spatial-temporal change of the geomagnetic field: environmental aspect
Геофизический журнал, 2020 The geomagnetic field, along with other environmental factors, is a necessary component of life on the Earth. Currently, there are relevant ecological standards for the values of constant and variable fields.
M.I. Orlyuk, A.A. Romenets
doaj +1 more source
Direct Measurement of the Radius and Density of the Transiting Exoplanet HD 189733B with the CHARA Array [PDF]
, 2007 We have measured the angular diameter of the transiting extrasolar planet host star HD 189733 using the CHARA O/IR interferometric array. Combining our new angular diameter of 0.377+/-0.024 mas with the Hipparcos parallax leads to a linear radius for the
Baraffe I. +12 more
core +4 more sources
PLANET-PLANET SCATTERING IN PLANETESIMAL DISKS [PDF]
The Astrophysical Journal, 2009 We study the final architecture of planetary systems that evolve under the combined effects of planet-planet and planetesimal scattering. Using N-body simulations we investigate the dynamics of marginally unstable systems of gas and ice giants both in isolation and when the planets form interior to a planetesimal belt.
Raymond, Sean N. +2 more
openaire +2 more sources
Applicability study of four atmospheric correction methods in the remote sensing of lake water color
Geocarto International, 2023 Due to the complexity of spectral characteristics for inland lake water, high-precision atmospheric correction methods play an essential role in remote sensing.
Aimin Li, Xiangyu Yan, Xuan Kang
doaj +1 more source
Remote Sensing, 2021 With the ability to capture daily imagery of Earth at very high spatial resolutions, commercial smallsats are emerging as a key resource for the remote sensing community.
Amy E. Frazier, Benjamin L. Hemingway
doaj +1 more source
Empirical Study of Simulated Two-planet Microlensing Event [PDF]
, 2014 We undertake the first study of two-planet microlensing models recovered from simulations of microlensing events generated by realistic multi-planet systems in which 292 planetary events including 16 two-planet events were detected from 6690 simulated ...
Mao, Shude +5 more
core +3 more sources
Analysis of PlanetScope Dove Digital Surface Model Accuracy Using Geometrically Simulated Images
Remote Sensing, 2023 Many objectives in geoscience and engineering require Earth surface elevations at greater temporospatial resolution and coverage than are currently available.
Myoung-Jong Noh, Ian M. Howat
doaj +1 more source
A New Planet Around an M Dwarf: Revealing a Correlation Between Exoplanets and Stellar Mass [PDF]
, 2007 We report precise Doppler measurements of GJ317 (M3.5V) that reveal the presence of a planet with a minimum mass Msini = 1.2 Mjup in an eccentric, 692.9 day orbit. GJ317 is only the third M dwarf with a Doppler-detected Jovian planet.
Debra A. Fischer +11 more
core +2 more sources
A Third Planet Orbiting HIP 14810 [PDF]
, 2009 We present new precision radial velocities and a three-planet Keplerian orbit fit for the V = 8.5, G5 V star HIP 14810. We began observing this star at Keck Observatory as part of the N2K Planet Search Project. Wright et al.
A. W. Howard +26 more
core +2 more sources