Zobrazeno 1 - 10
of 129
pro vyhledávání: '"Regály, Zs."'
Publikováno v:
A&A 686, A78 (2024)
The ring-like structures in protoplanetary discs that are observed in the cold dust emission by ALMA, might be explained by dust aggregates trapped aerodynamically in pressure maxima. The effect of a transient pressure maximum is investigated that de
Externí odkaz:
http://arxiv.org/abs/2402.11584
Publikováno v:
A&A 677, L6 (2023)
Context: Potentially hazardous asteroids (PHA) in Earth-crossing orbits pose a constant threat to life on Earth. Several mitigation methods have been proposed, and the most feasible technique appears to be the disintegration of the impactor and the g
Externí odkaz:
http://arxiv.org/abs/2308.02071
Excitation of Rossby wave instability and development of a large-scale vortex at the outer dead zone edge of protoplanetary discs is one of the leading theories that explains horseshoe-like brightness distribution in transition discs. Formation of su
Externí odkaz:
http://arxiv.org/abs/2302.03430
Gas rich dusty circumstellar discs observed around young stellar objects are believed to be the birthplace of planets and planetary systems. Recent observations revealed that large-scale horseshoe-like brightness asymmetries are present in dozens of
Externí odkaz:
http://arxiv.org/abs/2111.09073
Autor:
Dencs, Z., Regaly, Zs.
Publikováno v:
A&A 645, A65 (2021)
Protoplanets develop via collisions between planetesimals and planetary embryos in the final assembly stage of planet formation. The efficiency of the planet formation can be defined by the mass ratio between formed protoplanets and the initial mass
Externí odkaz:
http://arxiv.org/abs/2012.07683
It is believed that large-scale horseshoe-like brightness asymmetries found in dozens of transitional protoplanetary discs are caused by anticyclonic vortices. These vortices can play a key role in planet formation, as mm-sized dust -- the building b
Externí odkaz:
http://arxiv.org/abs/2002.02203
Recent sub-millimeter observations show non-axisymmetric brightness distributions with a horseshoe-like morphology for more than a dozen transition disks. The most accepted explanation for the observed asymmetries is the accumulation of dust in large
Externí odkaz:
http://arxiv.org/abs/1711.03548
One possible explanation of the cavity in debris discs is the gravitational perturbation of an embedded giant planet. Planetesimals passing close to a massive body are dynamically stirred resulting in a cleared region known as the chaotic zone. Theor
Externí odkaz:
http://arxiv.org/abs/1710.01524
Autor:
Regaly, Zs., Vorobyov, E.
Horseshoe-shaped brightness asymmetries of several transitional discs are thought to be caused by large-scale vortices. Anticyclonic vortices are efficiently collect dust particles, therefore they can play a major role in planet formation. Former stu
Externí odkaz:
http://arxiv.org/abs/1709.08334
Autor:
Regaly, Zs., Vorobyov, E.
Publikováno v:
A&A 601, A24 (2017)
Grid-based hydrodynamics simulations of circumstellar disks are often performed in the curvilinear coordinate system, in which the center of the computational domain coincides with the motionless star. However, the center of mass may be shifted from
Externí odkaz:
http://arxiv.org/abs/1701.04751