Results 21 to 30 of about 22,425 (264)

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

The origin of short-lived radionuclides and the astrophysical environment of solar system formation

, 2008
Based on early solar system abundances of short-lived radionuclides (SRs), such as $^{26}$Al (T$_{1/2} = 0.74$ Myr) and $^{60}$Fe (T$_{1/2} = 1.5$ Myr), it is often asserted that the Sun was born in a large stellar cluster, where a massive star ...
Amelin Y., Amelin Y., Anders Meibom, Boss A. P., de Graauw T., Knee L. B. G., Knodlseder J., Larson R. B., Matthieu Gounelle, Meyer B. S., Quitte G., Regelous M., Scalo J. M., Schaller G., Sugiura N., Tachibana S.   +15 more
core   +1 more source

Shadows, gaps, and ring-like structures in protoplanetary disks [PDF]

, 2011
We study the structure of passively heated disks around T Tauri and Herbig Ae stars, and present a vectorized Monte Carlo dust radiative transfer model of protoplanetary disks. The vectorization provides a speed up factor of 100 when compared to a scalar
Acke, Alexander, Alexander, Asplund, Beckwith, Bertout, Bjorkman, Bouwman, Brown, Brown, Calvet, Charnoz, Chiang, Cieza, Draine, Draine, Dullemond, Dullemond, Dullemond, Dullemond, Dullemond, Dullemond, D’Alessio, Edgar, Eisner, Espaillat, F. Heymann, Fitzpatrick, Fleck, Fukagawa, Furlan, Furlan, Gail, Hayashi, Huelamo, Ida, Isella, Ivezic, Kalas, Kama, Kemper, Kenyon, Kessler-Silacci, Klahr, Krijt, Krügel, Lagrange, Lommen, Lommen, Lubow, Lucy, Malfait, Mayama, McCaughrean, Millan-Gabet, Min, Min, Miroshnichenko, Mizuno, Mulders, Muzerolle, Najita, Najita, Natta, Natta, Nomura, Oliveira, Olofsson, Ozernoy, Pascucci, Pinte, Pinte, Pinte, Pontoppidan, Pontoppidan, R. Siebenmorgen, Ratzka, Ricci, Robitaille, Robitaille, Schegerer, Schegerer, Schisano, Siebenmorgen, Siebenmorgen, Sterzik, Strom, Testi, Thalmann, Tielens, Tutukov, van Boekel, van den Ancker, Verhoeff, Vinkovic, Visser, Voshchinikov, Walker, Waters, Watson, Watson, Whitney, Witt, Wolf, Zubko   +104 more
core   +2 more sources

A numerical approach to model chemistry of complex organic molecules in a protoplanetary disk

Open Astronomy, 2022
Multiphase astrochemical modeling presents a numerical challenge especially for the simulation of objects with the wide range of physical parameters such as protoplanetary disks.
Kiskin Mikhail Yu., Vasyunin Anton I., Akimkin Vitaly V.   +2 more
doaj   +1 more source

Scattered light mapping of protoplanetary disks

, 2016
High-contrast scattered light observations have revealed the surface morphology of several dozens of protoplanetary disks at optical and near-infrared wavelengths.
Avenhaus, H., Dominik, C., Garufi, A., Min, M., Mulders, G. D., Stolker, T.   +5 more
core   +1 more source

Transport of First Rocks of The Solar System by X-winds [PDF]

, 2010
It has been suggested that chondrules and calcium-aluminum-rich inclusions (CAIs) were formed at the inner edge of the protoplanetary disk and then entrained in magnetocentrifugal X-winds. We study trajectories of such solid bodies with the consideration
Desch, Desch, Hartmann, Jones, Renyu Hu, Shang, Shu, Tayler, Weidenschilling, Youdin   +9 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

THE PROTOPLANETARY SYSTEM FORMATION AS A RESULT OF THE MERGING OF CLOSE BINARY STAR CONSISTING OF THE LOW MASS PRE-MS STARS

Odessa Astronomical Publications, 2017
The mechanism of protoplanetary system formation as a result of a merge of binary star consisting of the low mass (0.5-1M⊙) pre-MS stars is considered. During the merging the more massive component is destroyed. The substance of the destroyed component
F. V. Sirotkin, V. G. Karetnikov
doaj   +1 more source

An ALMA Survey of Protoplanetary Disks in the $\sigma$ Orionis Cluster [PDF]

, 2017
The $\sigma$ Orionis cluster is important for studying protoplanetary disk evolution, as its intermediate age ($\sim$3-5 Myr) is comparable to the median disk lifetime. We use ALMA to conduct a high-sensitivity survey of dust and gas in 92 protoplanetary
Ansdell, Megan, Facchini, Stefano, Manara, Carlo F., Miotello, Anna, Testi, Leonardo, van der Marel, Nienke, van Dishoeck, Ewine F., Williams, Jonathan P.   +7 more
core   +3 more sources

Rapid Formation of Gas-giant Planets via Collisional Coagulation from Dust Grains to Planetary Cores. II. Dependence on Pebble Bulk Density and Disk Temperature

The Astrophysical Journal, 2023
Thanks to “dust-to-planet” simulations (DTPSs), which treat the collisional evolution directly from dust to giant-planet cores in a protoplanetary disk, we showed that giant-planet cores are formed in ≲10 au in several 10 ^5 yr, because porous pebbles ...
Hiroshi Kobayashi, Hidekazu Tanaka
doaj   +1 more source