Results 21 to 30 of about 349,443 (292)

Rapid Formation of Gas-giant Planets via Collisional Coagulation from Dust Grains to Planetary Cores. II. Dependence on Pebble Bulk Density and Disk Temperature

open access: yesThe 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

MINDS. The Detection of 13CO2 with JWST-MIRI Indicates Abundant CO2 in a Protoplanetary Disk

open access: yesThe 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

Long-Period Giant Companions to Three Compact, Multiplanet Systems [PDF]

open access: yes, 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

The Role of Multiplicity in Disk Evolution and Planet Formation [PDF]

open access: yes, 2011
The past decade has seen a revolution in our understanding of protoplanetary disk evolution and planet formation in single star systems. However, the majority of solar-type stars form in binary systems, so the impact of binary companions on ...
Hillenbrand, Lynne A.   +3 more
core   +3 more sources

Challenges in planet formation [PDF]

open access: yesJournal of Geophysical Research: Planets, 2016
AbstractOver the past two decades, large strides have been made in the field of planet formation. Yet fundamental questions remain. Here we review our state of understanding of five fundamental bottlenecks in planet formation. These are the following: (1) the structure and evolution of protoplanetary disks; (2) the growth of the first planetesimals; (3)
Morbidelli, Alessandro, Raymond, Sean N.
openaire   +3 more sources

The Effect of Dust Evolution and Traps on Inner Disk Water Enrichment

open access: yesThe Astrophysical Journal, 2023
Substructures in protoplanetary disks can act as dust traps that shape the radial distribution of pebbles. By blocking the passage of pebbles, the presence of gaps in disks may have a profound effect on pebble delivery into the inner disk, crucial for ...
Anusha Kalyaan   +8 more
doaj   +1 more source

Planet Formation and Disk-Planet Interactions [PDF]

open access: yes, 2019
This review is based on lectures given at the 45th Saas-Fee Advanced Course 'From Protoplanetary Disks to Planet Formation' held in March 2015 in Les Diablerets, Switzerland. Starting with an overview of the main characterictics of the Solar System and extrasolar planets, we describe the planet formation process in terms of the sequential accretion ...
openaire   +2 more sources

The planet formation imager [PDF]

open access: yesExperimental Astronomy, 2018
Published in Experimental Astronomy as part of topical collection "Future of Optical-infrared Interferometry in Europe"
Monnier, John D.   +38 more
openaire   +8 more sources

Formation of terrestrial planet cores inside giant planet embryos

open access: yes, 2010
Giant planet embryos are believed to be spawned by gravitational instability in massive extended (R ~ 100 AU) protostellar discs. In a recent paper we have shown that dust can sediment inside the embryos, as argued earlier by Boss (1998) in a slightly ...
Armitage   +52 more
core   +1 more source

HD 80606: Searching the chemical signature of planet formation [PDF]

open access: yes, 2015
(Abridged) Binary systems with similar components are ideal laboratories which allow several physical processes to be tested, such as the possible chemical pattern imprinted by the planet formation process. Aims.
Buccino, A., Flores, M., Saffe, C.
core   +2 more sources

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