Results 81 to 90 of about 295,537 (368)
Planet–planet scattering in circumstellar gas disks [PDF]
Astronomy and Astrophysics Letters, in ...
MARZARI, FRANCESCO+2 more
openaire +5 more sources
The axolotl's remarkable regenerative abilities decline with age, the causes may include the numerous repetitive elements within its genome. This study uncovers how Ty3 retrotransposons and coexpression networks involving muscle and immune pathways respond to aging and regeneration, suggesting that transposons respond to physiological shifts and may ...
Samuel Ruiz‐Pérez+8 more
wiley +1 more source
A Survey of Multiple Planet Systems [PDF]
As of August 2008, over 30 multiple exoplanet systems are known, and 28% of stars with planets show significant evidence of a second companion. I briefly review these 30 systems individually, broadly grouping them into five categories: 1) systems with 3 or more giant (Msini > 0.2 M_Jup) planets, 2) systems with two giant planets in mean motion ...
arxiv +1 more source
Water loss from terrestrial planets orbiting ultracool dwarfs: implications for the planets of TRAPPIST-1 [PDF]
Ultracool dwarfs (UCD) encompass the population of extremely low mass stars (later than M6-type) and brown dwarfs. Because UCDs cool monotonically, their habitable zone (HZ) sweeps inward in time.
É. Bolmont+6 more
semanticscholar +1 more source
Building giant-planet cores at a planet trap [PDF]
in press in Astronomy and ...
Morbidelli, A.+3 more
openaire +8 more sources
Maillard Type Reaction for Electroless Copper Plating onto Ceramic Nanoparticles
This work presents the manufacturing of copper‐plated ceramic nanoparticles in an environmentally friendly way. Supported by organic functionalizations with pectin an electroless plating step can be performed. Sustainable reagents like xylose, and several amino acids are used for the reduction process.
Lukas Mielewczyk+8 more
wiley +1 more source
Singing Planets Don't Sing; They Speak
Ancient Greek philosophers conceived a theory called Music of the Spheres. This ancient theory progressed for almost one thousand years before finally proving itself untrustworthy.
Joanna R. Lauer
doaj +1 more source
A dynamical perspective on additional planets in 55 Cancri [PDF]
Five planets are known to orbit the star 55 Cancri. The recently-discovered planet f at 0.78 AU (Fischer et al. 2008) is located at the inner edge of a previously-identified stable zone that separates the three close-in planets from planet d at 5.9 AU.
arxiv +1 more source
This study explores a process chain to produce dispersoid‐strengthened CuCr1Zr for applications requiring high strength and conductivity. Using gas‐atomized powder and copper‐plated alumina nanoparticles, additive manufacturing is performed via powder bed based additive manufacturing with green and red lasers, followed by heat treatment.
Heinrich von Lintel+7 more
wiley +1 more source
What the Upper Atmospheres of Giant Planets Reveal
The upper atmospheres of the Giant Planets, Jupiter, Saturn, Uranus and Neptune are transition regions between meteorological layers and outer space. As a result of their exceptionally rarefied nature, they are highly sensitive and therefore revealing ...
James O’Donoghue, Tom Stallard
doaj +1 more source