WebFeb 1, 2016 · A recent paper questioned the Grand Tack’s explanation for the Late Heavy Bombardment, yet failed to find a suitable alternative scenario. The Grand Tack, … WebJun 12, 2012 · The Grand Tack scenario relies on two assumptions: Jupiter formed around the snow line, in the range 2.5 AU to 4.5 AU, and it reversed migration at 1.5 AU. Walsh et al. ( 2011 ) demonstrate that the asteroid belt can survive this migration of Jupiter and Saturn because scattering by Jupiter initially empties the belt when it migrates inwards ...
A Compelling New Hypothesis Could Finally Explain How Earth …
WebApr 7, 2024 · Abstract. Context: In the Grand Tack (GT) scenario for the young solar system, Jupiter formed beyond 3.5 AU from the Sun and migrated as close as 1.5 AU until it encountered an orbital resonance with Saturn. Both planets then supposedly migrated outward for several 10 5 superscript 10 5 10^{5} 10 start_POSTSUPERSCRIPT 5 … In planetary astronomy, the grand tack hypothesis proposes that Jupiter formed at a distance of 3.5 AU from the Sun, then migrated inward to 1.5 AU, before reversing course due to capturing Saturn in an orbital resonance, eventually halting near its current orbit at 5.2 AU. The reversal of Jupiter's … See more In the grand tack hypothesis Jupiter underwent a two-phase migration after its formation, migrating inward to 1.5 AU before reversing course and migrating outward. Jupiter's formation took place near the See more The hypothesis can be applied to multiple phenomena in the Solar System. Mars problem The "Mars problem" is a conflict between some simulations … See more Multiple hypotheses have been offered to explain the small mass of Mars. A small Mars may have been a low probability event as it occurs in a small, but non-zero, fraction of simulations that begin with planetesimals distributed across the entire inner Solar System. … See more Most of the accretion of Mars must have taken place outside the narrow annulus of material formed by the grand tack if Mars has a different … See more • Formation and evolution of the Solar System • Jumping-Jupiter scenario • Late Heavy Bombardment See more dialysis center employment
Constraints on terrestrial planet formation timescales and ...
WebJun 26, 2015 · In the Grand Tack (GT) scenario for the young solar system, Jupiter formed beyond 3.5 AU from the Sun and migrated as close as 1.5 AU until it encountered an orbital resonance with Saturn. Both planets then supposedly migrated outward for several 10 5 yr, with Jupiter ending up at ≈ 5 AU. The initial conditions of the GT and the timing ... WebMay 28, 2024 · Accretion in the Grand Tack scenario results in faster planet formation than classical accretion models because of higher planetesimal surface density induced by a migrating Jupiter. Planetary embryos that grow rapidly experience radiogenic ingrowth of mantle 182 W that is inconsistent with the measured terrestrial composition, ... WebFeb 1, 2016 · Two major problems arise from Kaib and Chambers’ proposal. The first is that, apart from the Grand Tack model, no other viable scenario (let alone detailed model) exists to explain the LHB. For example, the suggestion made more than a decade ago that a rogue star passed close enough to the Sun to disrupt its primordial comet and asteroid ... dialysis center columbus ohio