Results 31 to 40 of about 18,502 (219)
Odessa Astronomical Publications, 2017 The mechanism of protoplanetary system formation as a result of a merge of binary star consisting of the low mass (0.5-1M⊙) pre-MS stars is considered. During the merging the more massive component is destroyed. The substance of the destroyed component
F. V. Sirotkin, V. G. Karetnikov
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A numerical approach to model chemistry of complex organic molecules in a protoplanetary disk
Open Astronomy, 2022 Multiphase astrochemical modeling presents a numerical challenge especially for the simulation of objects with the wide range of physical parameters such as protoplanetary disks.
Kiskin Mikhail Yu. +2 more
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Resonant Relaxation in Protoplanetary Disks [PDF]
The Astronomical Journal, 1998 19 pages, 1 figure, LaTeX, submitted to ...
openaire +2 more sources
The origin of short-lived radionuclides and the astrophysical environment of solar system formation
, 2008 Based on early solar system abundances of short-lived radionuclides (SRs), such as $^{26}$Al (T$_{1/2} = 0.74$ Myr) and $^{60}$Fe (T$_{1/2} = 1.5$ Myr), it is often asserted that the Sun was born in a large stellar cluster, where a massive star ...
Amelin Y. +15 more
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An ALMA Survey of Protoplanetary Disks in the $\sigma$ Orionis Cluster [PDF]
, 2017 The $\sigma$ Orionis cluster is important for studying protoplanetary disk evolution, as its intermediate age ($\sim$3-5 Myr) is comparable to the median disk lifetime. We use ALMA to conduct a high-sensitivity survey of dust and gas in 92 protoplanetary
Ansdell, Megan +7 more
core +3 more sources
Vortices in Protoplanetary Disks [PDF]
The Astrophysical Journal, 1999 We use a high order accuracy spectral code to carry out two-dimensional time-dependent numerical simulations of vortices in accretion disks. In particular, we examine the stability and the life time of vortices in circumstellar disks around young stellar objects. The results show that cyclonic vortices dissipate quickly, while anticyclonic vortices can
Godon, Patrick., Livio, Mario.
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On the accuracy of mass and size measurements of young protoplanetary disks
Frontiers in Astronomy and Space SciencesKnowing the masses and sizes of protoplanetary disks is of fundamental importance for the contemporary theories of planet formation. However, their measurements are associated with large uncertainties. In this proof of concept study, we focus on the very
Eduard I. Vorobyov +7 more
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The Astrophysical Journal, 2023 Thanks to “dust-to-planet” simulations (DTPSs), which treat the collisional evolution directly from dust to giant-planet cores in a protoplanetary disk, we showed that giant-planet cores are formed in ≲10 au in several 10 ^5 yr, because porous pebbles ...
Hiroshi Kobayashi, Hidekazu Tanaka
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Long Term Evolution of Planet-Induced Vortices in Protoplanetary Disks
, 2014 Recent observations of large-scale asymmetric features in protoplanetary disks suggest that large-scale vortices exist in such disks. Massive planets are known to be able to produce deep gaps in protoplanetary disks.
Fu, Wen +3 more
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The composition of the protosolar disk and the formation conditions for comets [PDF]
, 2015 Conditions in the protosolar nebula have left their mark in the composition of cometary volatiles, thought to be some of the most pristine material in the solar system.
A. Dutrey +227 more
core +3 more sources