Results 41 to 50 of about 5,220,245 (377)
AGU Advances, 2021 Magnetic fields in the early solar system may have driven the inward accretion of the protoplanetary disk (PPD) and generated instabilities that led to the formation of planets and ring and gap structures.
Roger R. Fu +5 more
doaj +1 more source
Stochasticity & Predictability in Terrestrial Planet Formation [PDF]
, 2016 Terrestrial planets are thought to be the result of a vast number of gravitational interactions and collisions between smaller bodies. We use numerical simulations to show that practically identical initial conditions result in a wide array of final ...
Grimm, Simon L. +3 more
core +2 more sources
The Astrophysical Journal, 2023 We present observations of the Class 0 protostar IRAS 16544–1604 in CB 68 from the “Early Planet Formation in Embedded Disks (eDisk)” ALMA Large program. The ALMA observations target continuum and lines at 1.3 mm with an angular resolution of ∼5 au.
Miyu Kido +35 more
doaj +1 more source
Planet formation around low mass stars: the moving snow line and super-Earths [PDF]
, 2006 We develop a semi-analytic model for planet formation during the pre-main sequence contraction phase of a low mass star. During this evolution, the stellar magnetosphere maintains a fixed ratio between the inner disk radius and the stellar radius. As the
Baraffe I. +7 more
core +3 more sources
Catching a planet: A tidal capture origin for the exomoon candidate Kepler 1625b I [PDF]
, 2018 The (yet-to-be confirmed) discovery of a Neptune-sized moon around the ~3.2 Jupiter-mass planet in Kepler 1625 puts interesting constraints on the formation of the system.
Hamers, Adrian S. +1 more
core +3 more sources
INSIDE-OUT PLANET FORMATION [PDF]
The Astrophysical Journal, 2013 The compact multi-transiting planet systems discovered by Kepler challenge planet formation theories. Formation in situ from disks with radial mass surface density, $ $, profiles similar to the minimum mass solar nebula (MMSN) but boosted in normalization by factors $\gtrsim 10$ has been suggested.
Chatterjee, Sourav, Tan, Jonathan C.
openaire +2 more sources
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
doaj +1 more source
Long-Period Giant Companions to Three Compact, Multiplanet Systems [PDF]
, 2019 Understanding the relationship between long-period giant planets and multiple smaller short-period planets is critical for formulating a complete picture of planet formation. This work characterizes three such systems. We present Kepler-65, a system with
Boisvert, John H. +9 more
core +3 more sources
MINDS. The Detection of 13CO2 with JWST-MIRI Indicates Abundant CO2 in a Protoplanetary Disk
The Astrophysical Journal Letters, 2023 We present JWST-MIRI Medium Resolution Spectrometer (MRS) spectra of the protoplanetary disk around the low-mass T Tauri star GW Lup from the MIRI mid-INfrared Disk Survey Guaranteed Time Observations program. Emission from ^12 CO _2 , ^13 CO _2 , H _2 O,
Sierra L. Grant +45 more
doaj +1 more source
Connecting planet formation and astrochemistry [PDF]
Astronomy & Astrophysics, 2019 To understand the role that planet formation history has on the observable atmospheric carbon-to-oxygen ratio (C/O) we have produced a population of astrochemically evolving protoplanetary disks.
A. Cridland +3 more
semanticscholar +1 more source