Results 121 to 130 of about 71,588 (268)

MINDS. JWST/MIRI Reveals a Dynamic Gas-rich Inner Disk inside the Cavity of SY Cha

The Astrophysical Journal
SY Cha is a T Tauri star surrounded by a protoplanetary disk with a large cavity seen in the millimeter continuum but has the spectral energy distribution of a full disk.
Kamber R. Schwarz, Thomas Henning, Valentin Christiaens, Danny Gasman, Matthias Samland, Giulia Perotti, Hyerin Jang, Sierra L. Grant, Benoît Tabone, Maria Morales-Calderón, Inga Kamp, Ewine F. van Dishoeck, Manuel Güdel, Pierre-Olivier Lagage, David Barrado, Alessio Caratti o Garatti, Adrian M. Glauser, Tom P. Ray, Bart Vandenbussche, L. B. F. M. Waters, Aditya M. Arabhavi, Jayatee Kanwar, Göran Olofsson, Donna Rodgers-Lee, Jürgen Schreiber, Milou Temmink   +25 more
doaj   +1 more source

The Dead Zones of Protoplanetary Disks are Not Dead

EPJ Web of Conferences, 2013
We show that the “dead” zone of a protoplanetary disk fills with robust 3D vortices from a purely hydrodynamic instability. This new instability is not linear and requires a weak finite-amplitude initial perturbation.
Hassanzadeh Pedram, Pei Suyang, Jiang Chung-Hsiang, Marcus Philip S.   +3 more
doaj   +1 more source

Resolving Protoplanetary Disks at Millimeter Wavelengths by CARMA [PDF]

, 2015
We present continuum observations at 1.3 and 2.7 mm using the Combined Array for Research in Millimeter-wave Astronomy (CARMA) toward six protoplanetary disks in the Taurus molecular cloud: CI Tau, DL Tau, DO Tau, FT Tau, Haro 6-13, and HL Tau. We constrain physical properties of the disks with Bayesian inference using two disk models; flared power-law
arxiv   +1 more source

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

The 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

Planetary Migration in Protoplanetary Disks [PDF]

, 2018
The known exoplanet population displays a great diversity of orbital architectures, and explaining the origin of this is a major challenge for planet formation theories. The gravitational interaction between young planets and their protoplanetary disks provides one way in which planetary orbits can be shaped during the formation epoch.
openaire   +5 more sources

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

The 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

THE MAGNETIC FIELD IMPACT ON ACCRETION RATE IN A PROTOPLANETARY DISK

Odessa Astronomical Publications, 2012
Recent observations are the evidence of a large-scale magnetic field in discs around classical T Tauri stars. A model of the axisymmetric thin protoplanetary disk in a global magnetic field is considered.
M. M. Kuksa
doaj   +1 more source

Natural separation of two primordial planetary reservoirs in an expanding solar protoplanetary disk. [PDF]

Sci Adv, 2022
Liu B, Johansen A, Lambrechts M, Bizzarro M, Haugbølle T.   +4 more
europepmc   +1 more source

Radial and Vertical Constraints on the Icy Origin of H2CO in the HD 163296 Protoplanetary Disk

The Astrophysical Journal
H _2 CO is a small organic molecule widely detected in protoplanetary disks. As a precursor to grain-surface formation of CH _3 OH, H _2 CO is considered an important precursor of O-bearing organic molecules that are locked in ices.
Claudio Hernández-Vera, Viviana V. Guzmán, Elizabeth Artur de la Villarmois, Karin I. Öberg, L. Ilsedore Cleeves, Michiel R. Hogerheijde, Chunhua Qi, John Carpenter, Edith C. Fayolle   +8 more
doaj   +1 more source

Issue Information

Meteoritics &Planetary Science, Volume 60, Issue 2, Page 149-150, February 2025.
wiley   +2 more sources