446 citations · 4.9k across the 74 of their papers we have counts for
6 papers · 1 filter
Standing on the shoulders of giants: Trojan Earths and vortex trapping in low mass self-gravitating protoplanetary disks of gas and solids
W. Lyra, A. Johansen, H. Klahr +1
Centimeter and meter sized solid particles in protoplanetary disks are trapped within long lived high pressure regions, creating opportunities for collapse into planetesimals and p…
Embryos grown in the dead zone: Assembling the first protoplanetary cores in low mass self-gravitating circumstellar disks of gas and solids
W. Lyra, A. Johansen, H. Klahr +1
In the borders of the dead zones of protoplanetary disks, the inflow of gas produces a local density maximum that triggers the Rossby wave instability. The vortices that form are e…
A comparative study of disc-planet interaction
M. de Val-Borro, R. G. Edgar, P. Artymowicz +20
We perform numerical simulations of a disc-planet system using various grid-based and smoothed particle hydrodynamics (SPH) codes. The tests are run for a simple setup where Jupite…
On the difference between nuclear and contraction ages
W. Lyra, A. Moitinho, N. van der Bliek +1
Context:Ages derived from the low mass stars still contracting onto the main sequence often differ from ages derived from the high mass ones that have already evolved away from it.…
Spiral structure of the Third Galactic Quadrant and the solution to the Canis Major debate
A. Moitinho, R. A. Vazquez, G. Carraro +3
With the discovery of the Sagittarius dwarf spheroidal (Ibata et al. 1994), a galaxy caught in the process of merging with the Milky Way, the hunt for other such accretion events h…
A Link Between the Semi-Major Axis of Extrasolar Gas Giant Planets and Stellar Metallicity
R. Pinotti, L. Arany-Prado, W. Lyra +1
The fact that most extrasolar planets found to date are orbiting metal-rich stars lends credence to the core accretion mechanism of gas giant planet formation over its competitor,…