Results 21 to 30 of about 16,676 (207)

Dust Coagulation and Settling in Layered Protoplanetary Disks [PDF]

, 2006
Previous models of dust growth in protoplanetary disks considered either uniformly laminar or turbulent disks. This Letter explores how dust growth occurs in a layered protoplanetary disk in which the magnetorotational instability generates turbulence ...
Ciesla, Fred J.
core   +2 more sources

Ionization and heating by X-rays and cosmic rays*

EPJ Web of Conferences, 2015
High-energy radiation from the central T Tauri and protostars plays an important role in shaping protoplanetary disks and influences their evolution. Such radiation, in particular X-rays and extreme-ultraviolet (EUV) radiation, is predominantly generated
Güdel Manuel
doaj   +1 more source

CHEMICAL PROCESSES IN PROTOPLANETARY DISKS [PDF]

The Astrophysical Journal, 2010
24 pages, 13 figures, accepted for publication in ...
Walsh, C, Millar, TJ, Nomura, H
openaire   +5 more sources

Scattered Radiation of Protoplanetary Disks

Universe, 2022
Scattered radiation of circumstellar (CS) dust plays an important role in the physics of young stars. Its observational manifestations are various but more often they are connected with the appearance of intrinsic polarization in young stars and their CS
Vladimir P. Grinin, Larisa V. Tambovtseva   +1 more
doaj   +1 more source

Influence of the C/O ratio on titanium and vanadium oxides in protoplanetary disks [PDF]

, 2013
Context. The observation of carbon-rich disks have motivated several studies questioning the influence of the C/O ratio on their gas phase composition in order to establish the connection between the metallicity of hot-Jupiters and that of their parent ...
Ali-Dib, M., Lunine, J. I., Madhusudhan, N., Mousis, O., Pekmezci, G. S., Petit, J. -M.   +5 more
core   +1 more source

Three-dimensional, Time-dependent MHD Simulation of Disk–Magnetosphere–Stellar Wind Interaction in a T Tauri, Protoplanetary System

The Astrophysical Journal, 2023
We present a three-dimensional, time-dependent MHD simulation of the short-term interaction between a protoplanetary disk and the stellar corona in a T Tauri system.
Ofer Cohen, Cecilia Garraffo, Jeremy J. Drake, Kristina Monsch, Igor V. Sokolov, Julián D. Alvarado-Gómez, Federico Fraschetti   +6 more
doaj   +1 more source

Dust Properties of Protoplanetary Disks in the Taurus-Auriga Star Forming Region from Millimeter Wavelengths [PDF]

, 2009
We present the most sensitive 3 mm-survey to date of protoplanetary disks carried in the Taurus-Auriga star forming region (average rms of about 0.3 mJy), using the IRAM PdBI.
A. Natta, Altenhoff, Andrews, Andrews, Andrews, Baraffe, Barge, Beckwith, Beckwith, Bertout, Bessell, Bouwman, Brauer, Briceño, Briceño, Calvet, Calvet, Calvet, Carpenter, Chiang, Davies, Draine, Draine, Dullemond, Dutrey, G. J. Herczeg, Gullbring, Gullbring, Hartigan, Hartmann, Herczeg, Hughes, Isella, Itoh, Jensen, Jensen, Kenyon, Kessler-Silacci, Kitamura, Klahr, Klein, Koerner, Kwon, L. Ricci, L. Testi, Leggett, Leinert, Lommen, Lommen, Luhman, Malfait, Mannings, Mathieu, Mathis, Miyake, Mundy, Natta, Ohashi, Padgett, Palla, Pinte, Pollack, Pollack, R. Neri, Reipurth, Rieke, Rodmann, S. Cabrit, Safronov, Schaefer, Scholz, Simon, Simon, Takeuchi, Tanaka, Testi, Testi, Throop, Valenti, Weidenschilling, Weingartner, Wilner, Zubko   +82 more
core   +2 more sources

PROTOPLANETARY DISK STRUCTURES IN OPHIUCHUS [PDF]

The Astrophysical Journal, 2009
ApJ in press: 51 pages, 13 ...
Andrews, Sean M., Wilner, D. J., Hughes, A. M., Qi, Chunhua, Dullemond, C. P.   +4 more
openaire   +2 more sources

Protoplanetary gas disks in the far infrared

, 2009
The physical and chemical conditions in young protoplanetary disks set the boundary conditions for planet formation. Although the dust in disks is relatively easily detected as a far-IR photometric ``excess'' over the expected photospheric emission, much
Goicoechea, Javier R., Swinyard, Bruce
core   +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