Results 41 to 50 of about 473,596 (201)
The Occurrence Rate of Small Planets around Small Stars [PDF]
, 2013 We use the optical and near-infrared photometry from the Kepler Input Catalog to provide improved estimates of the stellar characteristics of the smallest stars in the Kepler target list. We find 3897 dwarfs with temperatures below 4000K, including 64 planet candidate host stars orbited by 95 transiting planet candidates. We refit the transit events in
arxiv +1 more source
Tilted circumbinary planetary systems as efficient progenitors of free-floating planets [PDF]
arXiv, 2023 The dominant mechanism for generating free-floating planets has so far remained elusive. One suggested mechanism is that planets are ejected from planetary systems due to planet-planet interactions. However, instability around a single star requires a very compactly spaced planetary system.
arxiv
The Magnetic Field of Planet Earth
Space Science Reviews, 2010 The magnetic field of the Earth is by far the best documented magnetic field of all known planets. Considerable progress has been made in our understanding of its charac- teristics and properties, thanks to the convergence of many different approaches and to the remarkable fact that surface rocks have quietly recorded much of its history.
Hulot, G. +4 more
openaire +6 more sources
Earth and Terrestrial Planet Formation
, 2015 The growth and composition of Earth is a direct consequence of planet formation throughout the Solar System. We discuss the known history of the Solar System, the proposed stages of growth and how the early stages of planet formation may be dominated by ...
Agnor +145 more
core +1 more source
On The History and Future of Cosmic Planet Formation [PDF]
, 2015 We combine constraints on galaxy formation histories with planet formation models, yielding the Earth-like and giant planet formation histories of the Milky Way and the Universe as a whole. In the Hubble Volume (10^13 Mpc^3), we expect there to be ~10^20 Earth-like and ~10^20 giant planets; our own galaxy is expected to host ~10^9 and ~10^10 Earth-like
arxiv +1 more source
Dynamical Constraints on Outer Planets in Super-Earth Systems [PDF]
, 2015 This paper considers secular interactions within multi-planet systems. In particular we consider dynamical evolution of known planetary systems resulting from an additional hypothetical planet on an eccentric orbit. We start with an analytical study of a general two-planet system, showing that a planet on an elliptical orbit transfers all of its ...
arxiv +1 more source
Radiative Transfer on Perturbations in Protoplanetary Disks
, 2003 We present a method for calculating the radiative tranfer on a protoplanetary disk perturbed by a protoplanet. We apply this method to determine the effect on the temperature structure within the photosphere of a passive circumstellar disk in the ...
Dimitar D. Sasselov +3 more
core +1 more source
Comparison of volcanic explosions in Japan using impulsive ionospheric disturbances
Earth, Planets and Space, 2021 Using the ionospheric total electron content (TEC) data from ground-based Global Navigation Satellite System (GNSS) receivers in Japan, we compared ionospheric responses to five explosive volcanic eruptions 2004–2015 of the Asama, Shin-Moe, Sakurajima ...
Mokhamad Nur Cahyadi +3 more
doaj +1 more source
EARTH AS PRIMORDIALLY HYDROGEN-RICH PLANET: HYPOTHESIS AND REALITY
Геодинамика и тектонофизика, 2021 The article is focused on the role of natural hydrogen in the Earth geodynamics and energy potential. With a proper consideration of the physical parameters of the Earth’s core and mantle, we discuss the aspects of the Hydridic Earth (or Primordially ...
А. V. Pospeev
doaj +1 more source