Absence of a metallicity effect for ultra-short-period planets [PDF]
, 2017 Ultra-short-period (USP) planets are a newly recognized class of planets with periods shorter than one day and radii smaller than about 2 Earth radii.
Cargile, Phillip +9 more
core +3 more sources
Evolutionary models for cool brown dwarfs and extrasolar giant planets. The case of HD 209458 [PDF]
, 2003 We present evolutionary models for cool brown dwarfs and extra-solar giant planets. The models re- produce the main trends of observed methane dwarfs in near-IR color-magnitude diagrams.
I. Baraffe +4 more
semanticscholar +1 more source
No large population of unbound or wide-orbit Jupiter-mass planets [PDF]
Nature, 2017 Planet formation theories predict that some planets may be ejected from their parent systems as result of dynamical interactions and other processes. Unbound planets can also be formed through gravitational collapse, in a way similar to that in which ...
P. Mróz +11 more
semanticscholar +1 more source
Two Distinct Magma Storage Regions at Ambrym Volcano Detected by Satellite Geodesy
Geophysical Research Letters, 2023 The flux of eruptible magma into a magmatic plumbing system influences eruption size and timing. If magma transfer is possible between two hydraulically‐connected magma lenses, system destabilization can tap a larger magma volume than stored in any one ...
T. Shreve +4 more
doaj +1 more source
Metallicity of solar-type stars with debris discs and planets [PDF]
, 2012 Around 16% of the solar-like stars in our neighbourhood show IR-excesses due to debris discs and a fraction of them are known to host planets. We aim to determine in a homogeneous way the metallicity of a sample of stars with known debris discs and ...
A. Mora +63 more
core +3 more sources
Possible Transfer of Life by Earth-Grazing Objects to Exoplanetary Systems
Life, 2020 Recently, a 30-cm object was discovered to graze the Earth’s atmosphere and shift into a Jupiter-crossing orbit. We use the related survey parameters to calibrate the total number of such objects.
Amir Siraj, Abraham Loeb
doaj +1 more source
The Densities of Planets in Multiple Stellar Systems [PDF]
, 2017 We analyze the effect of companion stars on the bulk density of 29 planets orbiting 15 stars in the Kepler field. These stars have at least one stellar companion within 2", and the planets have measured masses and radii, allowing an estimate of their ...
Furlan, E., Howell, S. B.
core +2 more sources
Ready functions for calculating the Martian radiation environment
Journal of Space Weather and Space Climate, 2019 It is extremely important to understand and model the Martian radiation environment in preparation for future human missions to Mars, especially during extreme and elevated conditions such as an intense solar energetic particle (SEP) event.
Guo Jingnan +4 more
doaj +1 more source
A Revised Exoplanet Yield from the Transiting Exoplanet Survey Satellite (TESS) [PDF]
, 2018 The Transiting Exoplanet Survey Satellite (TESS) has a goal of detecting small planets orbiting stars bright enough for mass determination via ground-based radial velocity observations.
Barclay, Thomas +2 more
core +3 more sources
The California-Kepler Survey. IV. Metal-rich Stars Host a Greater Diversity of Planets [PDF]
, 2017 Probing the connection between a star’s metallicity and the presence and properties of any associated planets offers an observational link between conditions during the epoch of planet formation and mature planetary systems. We explore this connection by
E. Petigura +9 more
semanticscholar +1 more source