Results 61 to 70 of about 399,848 (263)

The ALMA Survey of Gas Evolution of PROtoplanetary Disks (AGE-PRO). X. Dust Substructures, Disk Geometries, and Dust-disk Radii

The Astrophysical Journal
We perform visibility fitting to the dust continuum Band 6 1.3 mm data of the 30 protoplanetary disks in the Atacama Large Millimeter/submillimeter Array Survey of Gas Evolution of PROtoplanetary Disks (AGE-PRO) Large Program.
Miguel Vioque, Nicolás T. Kurtovic, Leon Trapman, Anibal Sierra, Laura M. Pérez, Ke Zhang, Pietro Curone, Giovanni P. Rosotti, John Carpenter, Benoît Tabone, Paola Pinilla, Dingshan Deng, Ilaria Pascucci, James Miley, Carolina Agurto-Gangas, Lucas A. Cieza, Rossella Anania, Dary A. Ruiz-Rodriguez, Camilo González-Ruilova, Estephani E. TorresVillanueva, Aleksandra Kuznetsova   +20 more
doaj   +1 more source

Three-dimensional SPH Simulations of FU Orionis Star Flares in the Clumpy Accretion Model

The Astrophysical Journal, 2023
One of the early hypotheses about the origin of FU Orionis star (FUORs) outbursts explains them based on the fall of gas clumps from the remnants of protostellar clouds onto protoplanetary disks surrounding young stars.
Tatiana V. Demidova, Vladimir P. Grinin
doaj   +1 more source

Orbital Evolution of Moons in Weakly Accreting Circumplanetary Disks

, 2017
We investigate the formation of hot and massive circumplanetary disks (CPDs) and the orbital evolution of satellites formed in these disks. Because of the comparatively small size-scale of the sub-disk, quick magnetic diffusion prevents the ...
Fujii, Yuri I., Gressel, Oliver, Kobayashi, Hiroshi, Takahashi, Sanemichi Z.   +3 more
core   +1 more source

On the Evolution of Dust Mineralogy, From Protoplanetary Disks to Planetary Systems [PDF]

, 2011
Mineralogical studies of silicate features emitted by dust grains in protoplanetary disks and Solar System bodies can shed light on the progress of planet formation.
Beckwith, Beichman, Blaauw, Bockelée-Morvan, Bouwman, Brown, Bruno Merín, Bryden, Carpenter, Carpenter, Dahm, de Zeeuw, Dullemond, Dzib, Ewine F. van Dishoeck, Fabian, Forrest, Furlan, Gautier, Haisch, Harker, Harker, Hartmann, Hernández, Houck, Isa Oliveira, Jean-Charles Augereau, Johan Olofsson, Juhász, Juhász, Kemper, Kessler-Silacci, Kessler-Silacci, Klaus M. Pontoppidan, Kóspál, Lahuis, Li, Lisse, Luhman, Luhman, Malfait, Mamajek, Megeath, Merín, Merín, Oliveira, Oliveira, Pascucci, Rieke, Sargent, Sicilia-Aguilar, Straizys, Su, Watson, Wooden, Wooden   +55 more
core   +3 more sources

A Three-dimensional View of Turbulence: Constraints on Turbulent Motions in the HD 163296 Protoplanetary Disk Using DCO+ [PDF]

, 2017
Gas kinematics are an important part of the planet formation process. Turbulence influences planetesimal growth and migration from the scale of submicron dust grains through gas-giant planets.
K. Flaherty, A. Hughes, Sanaea C. Rose, J. Simon, J. Simon, C. Qi, S. Andrews, Á. Kóspál, Á. Kóspál, D. Wilner, E. Chiang, P. Armitage, X. Bai   +12 more
semanticscholar   +1 more source

CO destruction in protoplanetary disk midplanes: Inside versus outside the CO snow surface [PDF]

Astronomy & Astrophysics, 2018
Context. The total gas mass is one of the most fundamental properties of disks around young stars, because it controls their evolution and their potential to form planets.
A. Bosman, C. Walsh, E. V. van Dishoeck
semanticscholar   +1 more source

The Qingzhen reaction, a fine‐grained mineral assemblage associated with djerfisherite in some EH3 chondrites: Alteration on the EH parent body

Meteoritics &Planetary Science, EarlyView.
Abstract Enstatite chondrites formed under extremely reducing conditions in the protoplanetary disk. They are derived from two or more parent bodies, EH and EL, and both EH and EL groups contain petrologic type 3–6 samples. The rare lithophile‐ and halogen‐bearing sulfide, djerfisherite, occurs in low abundance in enstatite chondrites, most frequently ...
Peter Mc Ardle, Rhian H. Jones, Luke Daly, Romain Tartèse, Patricia L. Clay, Brian O'Driscoll, Ray Burgess, William Smith, Colin How, Lewis Hughes   +9 more
wiley   +1 more source

The Empirical and Radiative Transfer Hybrid (EaRTH) Disk Model: Merging Analyses of Protoplanetary Dust Disk Mineralogy and Structure

The Astrophysical Journal
Our understanding of how exoplanets form and evolve relies on analyses of both the mineralogy of protoplanetary disks and their detailed structures; however, these key complementary aspects of disks are usually studied separately.
William Grimble, Joel Kastner, Christophe Pinte, Beth Sargent, David A. Principe, Annie Dickson-Vandervelde, Aurora Belén Aguayo, Claudio Caceres, Matthias R. Schreiber, Keivan G. Stassun   +9 more
doaj   +1 more source

PAHs in protoplanetary disks: emission and X-ray destruction [PDF]

, 2012
We study the PAH emission from protoplanetary disks. First, we discuss the dependence of the PAH band ratios on the hardness of the absorbed photons and the temperature of the stars.
Acke, Acke, Armitage, Asplund, Augereau, Baes, Bianchi, Bjorkman, Chase, Chiang, Compiegne, Doucet, Draine, Draine, Dullemond, Dwek, Ercolano, F. Heymann, Fleck, Galliano, Geers, Gordon, Guhathakurta, Habart, Hayashi, Heymann, Jayawardhana, Juvela, Keller, Krijt, Lagage, Lucy, Mathis, Mattioda, Mattioda, Min, Min, Miroshnichenko, Misselt, Peeters, Preibisch, R. Siebenmorgen, Robitaille, Robitaille, Salama, Schräpler, Schutte, Sellgren, Siebenmorgen, Siebenmorgen, Siebenmorgen, Siebenmorgen, Siebenmorgen, Siebenmorgen, Stelzer, Tielens, Uchida, van den Ancker, Vinkovic, Youdin, Zubko   +60 more
core   +1 more source

Shadowing and multiple rings in the protoplanetary disk of HD 139614 [PDF]

Astronomy & Astrophysics, 2019
Context. Shadows in scattered light images of protoplanetary disks are a common feature and support the presence of warps or misalignments between disk regions.
G. Muro-Arena, M. Benisty, C. Ginski, C. Dominik, S. Facchini, M. Villenave, R. Boekel, G. Chauvin, A. Garufi, T. Henning, M. Janson, M. Keppler, A. Matter, F. Ménard, T. Stolker, A. Zurlo, P. Blanchard, D. Maurel, O. Moeller-Nilsson, C. Petit, A. Roux, A. Sevin, F. Wildi   +22 more
semanticscholar   +1 more source