Results 121 to 130 of about 398,118 (263)

Light Echoes of Time-resolved Flares and Application to Kepler Data

The Open Journal of Astrophysics
Light echoes of stellar flares provide an intriguing option for exploring protoplanetary disks in young stellar systems. Previous work on light echoes of circumstellar disks made use of delta-function flares for modeling.
Austin King, Benjamin C. Bromley
doaj   +1 more source

Dust growth in protoplanetary disks - a comprehensive experimental/theoretical approach

, 2010
More than a decade of dedicated experimental work on the collisional physics of protoplanetary dust has brought us to a point at which the growth of dust aggregates can - for the first time - be self-consistently and reliably modelled.
Dominik, Dullemond, Furlan, Güttler, Johansen, Jürgen Blum, Kessler-Silacci, Kothe, Langkowski, Natta, Poppe, Poppe, Schräpler, Stwart, Terquem, Wada, Wada, Wada, Weidenschilling, Weidenschilling, Weidling   +20 more
core   +1 more source

Dust retention in protoplanetary disks

, 2009
Context: Protoplanetary disks are observed to remain dust-rich for up to several million years. Theoretical modeling, on the other hand, raises several questions.
Andrews, Blum, Blum, Brauer, Brauer, Brauer, C. P. Dullemond, Dominik, Dullemond, F. Brauer, Furlan, Hueso, Johansen, Kessler-Silacci, Kretke, Lynden-Bell, Lyra, Nakagawa, Nakamoto, Ormel, Piétu, Shakura, Stewart, T. Birnstiel, van Boekel, Weidenschilling, Weidenschilling, Weidenschilling, Weidenschilling, Youdin   +29 more
core   +1 more source

JVLA Measurement of Grain Size in the Compact Dust Ring Around Class I Protostar WL 17

The Astronomical Journal
The maximum grain size in protoplanetary disks is a critical parameter for planet formation, as the efficiency of mechanisms like streaming instability and pebble accretion depend on grain size.
Jun Hashimoto, Hauyu Baobab Liu, Ruobing Dong, Beibei Liu, Takayuki Muto   +4 more
doaj   +1 more source

Dust Evolution in Protoplanetary Disks

, 2014
(abridged) In the core accretion scenario for the formation of planetary rocky cores, the first step toward planet formation is the growth of dust grains into larger and larger aggregates and eventually planetesimals.
Andrews, Sean, Birnstiel, Tilman, Blum, Juergen, Carpenter, John, Dominik, Carsten, Isella, Andrea, Natta, Antonella, Ricci, Luca, Testi, Leonardo, Williams, Jonathan, Wilner, David   +10 more
core   +1 more source

exoALMA. I. Science Goals, Project Design, and Data Products

The Astrophysical Journal Letters
Planet formation is a hugely dynamic process requiring the transport, concentration, and assimilation of gas and dust to form the first planetesimals and cores.
Richard Teague, Myriam Benisty, Stefano Facchini, Misato Fukagawa, Christophe Pinte, Sean M. Andrews, Jaehan Bae, Marcelo Barraza-Alfaro, Gianni Cataldi, Nicolás Cuello, Pietro Curone, Ian Czekala, Daniele Fasano, Mario Flock, Maria Galloway-Sprietsma, Himanshi Garg, Cassandra Hall, Iain Hammond, Thomas Hilder, Jane Huang, John D. Ilee, Andrés F. Izquierdo, Kazuhiro Kanagawa, Geoffroy Lesur, Giuseppe Lodato, Cristiano Longarini, Ryan A. Loomis, Frédéric Masset, Francois Menard, Ryuta Orihara, Daniel J. Price, Giovanni Rosotti, Jochen Stadler, Leonardo Testi, Hsi-Wei Yen, Gaylor Wafflard-Fernandez, David J. Wilner, Andrew J. Winter, Lisa Wölfer, Tomohiro C. Yoshida, Brianna Zawadzki   +40 more
doaj   +1 more source

Dust Ejection from Planetary Bodies by Temperature Gradients: Laboratory Experiments

, 2011
Laboratory experiments show that dusty bodies in a gaseous environment eject dust particles if they are illuminated. We find that even more intense dust eruptions occur when the light source is turned off.
Balme, Blum, Brauer, Brüche, Calvet, Ciesla, Dennis Reiss, Dominik, Einstein, Gerhard Wurm, Greeley, Jozef Klačka, Kantorovich, Knudsen, Kocifaj, Kocifaj, Mamajek, Maxwell, Miroslav Kocifaj, Muntz, Olofsson, Paraskov, Reiss, Reynolds, Rohatschek, Ryan, Sicilia-Aguilar, Takeuchi, Teiser, Thomas, Thorben Kelling, Weidenschilling, Wood, Wurm, Wurm, Wurm, Wurm, Zheng   +37 more
core   +1 more source

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

, 2010
K. M. Pontoppidan, Colette Salyk, Geoffrey A. Blake, Hans Ulrich Käufl   +3 more
openalex   +1 more source

Spatial distribution of isotopes and compositional mixing in the inner protoplanetary disk

, 2023
Kang Shuai, Hejiu Hui, Li-Yong Zhou, Weiqiang Li   +3 more
openalex   +1 more source

Asymmetric Temperature Variations In Protoplanetary Disks. I. Linear Theory, Corotating Spirals, and Ring Formation

The Astrophysical Journal
Protoplanetary disks can exhibit asymmetric temperature variations due to phenomena such as shadows cast by the inner disk or localized heating by young planets. We investigate the disk features induced by these asymmetric temperature variations. We find
Zhaohuan Zhu, Shangjia Zhang, Ted M. Johnson   +2 more
doaj   +1 more source