Results 21 to 30 of about 40,288 (103)

Planetary Collisions: Electromagnetic Signals

, 2003
We investigate the electromagnetic signals accompanied with planetary collisions and their event rate, and explore the possibility of directly detecting such events.
Sigurdsson, Steinn, Zhang, Bing
core   +1 more source

Gliese 581d is the first discovered terrestrial-mass exoplanet in the habitable zone [PDF]

, 2011
It has been suggested that the recently discovered exoplanet GJ581d might be able to support liquid water due to its relatively low mass and orbital distance.
Goody, Kaltenegger, Montmessin, Pierrehumbert, Reynolds, Spiegel, Tanigawa, Tian, Vogt, von Braun   +9 more
core   +3 more sources

The Nature of Scientific Proof in the Age of Simulations

, 2014
Is numerical mimicry a third way of establishing truth?Comment: Published in American Scientist: Volume 102, Number 3, Pages 174 to 177 (http://www.americanscientist.org/issues/pub/2014/3/the-nature-of-scientific-proof-in-the-age-of ...
Heng, Kevin
core   +1 more source

Shape: A 3D Modeling Tool for Astrophysics

, 2010
We present a flexible interactive 3D morpho-kinematical modeling application for astrophysics. Compared to other systems, our application reduces the restrictions on the physical assumptions, data type and amount that is required for a reconstruction of ...
Koning, Nicholas, Magnor, Marcus, Morisset, Christophe, Steffen, Wolfgang, Wenger, Stephan   +4 more
core   +2 more sources

The Ability of Significant Tidal Stress to Initiate Plate Tectonics [PDF]

, 2019
Plate tectonics is a geophysical process currently unique to Earth, has an important role in regulating the Earth's climate, and may be better understood by identifying rocky planets outside our solar system with tectonic activity.
Triaud, Amaury H. M. J., Zanazzi, J. J.
core   +2 more sources

The triaxial ellipsoid dimensions, rotational pole, and bulk density of ESA Rosetta target asteroid (21) Lutetia

, 2010
We seek the best size estimates of the asteroid (21) Lutetia, the direction of its spin axis, and its bulk density, assuming its shape is well described by a smooth featureless triaxial ellipsoid, and to evaluate the deviations from this assumption ...
A. Conrad, B. Carry, Barucci, Barucci, Belskaya, Birlan, Bowell, C. Dumas, C. R. Chapman, Carry, Carry, Chapman, Chapman, Clark, Conan, Conrad, Consolmagno, DeMeo, Drummond, Drummond, Drummond, Drummond, Fienga, Flynn, Fujiwara, Gaffey, H. A. Weaver, J. C. Christou, J. D. Drummond, Kryszczyńska, Lazzarin, Lazzarin, Lazzarin, Macke, Magri, Magri, McCord, Morrison, Mueller, Mugnier, Nedelcu, P. M. Tamblyn, Perna, Rivkin, Rivkin, Shepard, Tedesco, Torppa, Vernazza, Vernazza, W. J. Merline, Weaver, Zellner   +52 more
core   +2 more sources

Elemental ratios in stars vs planets

, 2015
Context. The chemical composition of planets is an important constraint for planet formation and subsequent differentiation. While theoretical studies try to derive the compositions of planets from planet formation models in order to link the composition
Alibert, Yann, Leya, Ingo, Marboeuf, Ulysse, Mezger, Klaus, Thiabaud, Amaury   +4 more
core   +1 more source

First preliminary tests of the general relativistic gravitomagnetic field of the Sun and new constraints on a Yukawa-like fifth force from planetary data

, 2007
The general relativistic Lense-Thirring precessions of the perihelia of the inner planets of the Solar System are about 10^-3 arcseconds per century. Recent improvements in planetary orbit determination may yield the first observational evidence of such ...
Adelberger, Ashby, Barker, Bertolami, Bertotti, Ciufolini, Ciufolini, Ciufolini, Ciufolini, Cugusi, Damour, de Sitter, Dvali, Everitt, Everitt, Fienga, Fischbach, Fitch, Iorio, Iorio, Iorio, Iorio, Iorio, Iorio, Iorio, Krasinsky, L. Iorio, Lense, Lucchesi, Lucchesi, Lue, Mashhoon, Mecheri, Murphy, Newhall, Nordtevdt, Nordtvedt, Nordtvedt, Paternò, Pijpers, Pijpers, Pitjeva, Pitjeva, Reynaud, Ries, Ruggiero, Schiff, Sereno, Sereno, Sereno, Soffel, Standish, Stella, Thorne, Will   +54 more
core   +1 more source

The great dichotomy of the Solar System: small terrestrial embryos and massive giant planet cores

, 2015
The basic structure of the solar system is set by the presence of low-mass terrestrial planets in its inner part and giant planets in its outer part. This is the result of the formation of a system of multiple embryos with approximately the mass of Mars ...
Bitsch, B., Jacobson, S., Lambrechts, M., Morbidelli, A.   +3 more
core   +1 more source

Earth-like Habitats in Planetary Systems

, 2014
Understanding the concept of habitability is related to an evolutionary knowledge of the particular planet-in-question. Additional indications so-called "systemic aspects" of the planetary system as a whole governs a particular planet's claim on ...
Bitsch, Bertram, Fernandes, Vera A., Fritz, Jörg, Grenfell, Lee J., Kührt, Ekkehard, Morbidelli, Alessandro, Rauer, Heike, Tornow, Carmen, Wagner, Roland, Werner, Stephanie C., Wünnemann, Kai   +10 more
core   +1 more source