Results 261 to 270 of about 282,229 (301)

A complex structure of escaping helium spanning more than half the orbit of the ultra-hot Jupiter WASP-121 b. [PDF]

open access: yesNat Commun
Allart R   +21 more
europepmc   +1 more source

Lunar and Planetary Mass Concentrations

Science, 1969
Brian T. O'Leary   +2 more
openaire   +3 more sources

The System of Planetary Masses

Science, 1971
Michael E. Ash   +2 more
openaire   +3 more sources

Mass anisotropy and planetary motion

Il Nuovo Cimento, 1961
The consequences of mass anisotropy for planetary motion are investigated. A precession of the perihelion in the plane of the orbit is predicted. Application of the theory to Mercury establishes an upper limit for the mass anisotropy ratio of 1.57.10-10 for planetary systems.
E. V. Ivash, R. F. Sweet
openaire   +1 more source

Discovery of a Young Planetary-Mass Binary

Science, 2006
We have identified a companion to the young planetary-mass brown dwarf Oph 162225-240515. This pair forms a resolved binary consisting of two objects with masses comparable to those of extrasolar giant planets. Several lines of evidence confirm the coevality and youth of the two objects, suggesting that they form a physical binary.
Ray, Jayawardhana, Valentin D, Ivanov
openaire   +2 more sources

Producing Planetary-Mass Objects

Science, 2001
ASTROPHYSICS Models suggest that stars form by the gravitational collapse of a molecular cloud, whereas planets form in circumstellar disks around young stars by accretion. Recent observations have uncovered isolated planetary-mass objects, and neither model is adequate to explain these ...
openaire   +1 more source

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