Results 121 to 130 of about 399,848 (263)

The Effect of Stellar Evolution on Dispersal of Protoplanetary Disks: Disk Fraction in Star-forming Regions

open access: yesThe Astrophysical Journal
We study the effect of stellar evolution on the dispersal of protoplanetary disks by performing one-dimensional simulations of long-term disk evolution.
Ayano Komaki, Naoki Yoshida
doaj   +1 more source

Impact of the initial disk mass function on the disk fraction

open access: yes, 2015
The disk fraction, the percentage of stars with disks in a young cluster, is widely used to investigate the lifetime of the protoplanetary disk, which can impose an important constraint on the planet formation mechanism.
Ohsawa, Ryou   +2 more
core   +1 more source

Sensitive survey for 13CO, CN, H2CO, and SO in the disks of T Tauri and Herbig Ae stars II: Stars in $\rho$ Oph and upper Scorpius

open access: yes, 2015
We attempt to determine the molecular composition of disks around young low-mass stars in the $\rho$ Oph region and to compare our results with a similar study performed in the Taurus-Auriga region.
Di Folco, E.   +7 more
core   +3 more sources

The ALMA Survey of Gas Evolution of PROtoplanetary Disks (AGE-PRO). XI. Beam-corrected Gas Disk Sizes from Fitting 12CO Moment Zero Maps

open access: yesThe Astrophysical Journal
The inward drift of millimeter–centimeter sized pebbles in protoplanetary disks has become an important part of our current theories of planet formation and, more recently, planet composition as well.
Leon Trapman   +18 more
doaj   +1 more source

Planetesimal formation by the streaming instability in a photoevaporating disk

open access: yes, 2017
Recent years have seen growing interest in the streaming instability as a candidate mechanism to produce planetesimals. However, these investigations have been limited to small-scale simulations. We now present the results of a global protoplanetary disk
Carrera, Daniel   +3 more
core   +1 more source

SPECTRALLY RESOLVED PURE ROTATIONAL LINES OF WATER IN PROTOPLANETARY DISKS [PDF]

open access: bronze, 2010
K. M. Pontoppidan   +3 more
openalex   +1 more source

Gravitational Instability in Protoplanetary Disk with Cooling: 2D Global Analysis

open access: yesThe Astrophysical Journal
Self-gravity is important in protoplanetary disks for planet formation through gravitational instability (GI). We study the cooling effect on GI in a thin two-dimensional protoplanetary disk.
Zehao Su, Xing Wei
doaj   +1 more source

Theory of Disk Accretion onto Magnetic Stars

open access: yesEPJ Web of Conferences, 2014
Disk accretion onto magnetic stars occurs in a variety of systems, including accreting neutron stars (with both high and low magnetic fields), white dwarfs, and protostars.
Lai Dong
doaj   +1 more source

Observational diagnostics of gas in protoplanetary disks

open access: yes, 2009
Protoplanetary disks are composed primarily of gas (99% of the mass). Nevertheless, relatively few observational constraints exist for the gas in disks. In this review, I discuss several observational diagnostics in the UV, optical, near-IR, mid-IR, and (
A. Carmona   +129 more
core   +2 more sources

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