Results 71 to 80 of about 19,742 (238)

Protoplanetary Disk Polarization at Multiple Wavelengths: Are Dust Populations Diverse?

The Astrophysical Journal
Millimeter and submillimeter observations of continuum linear dust polarization provide insight into dust grain growth in protoplanetary disks, which are the progenitors of planetary systems.
Rachel E. Harrison, Zhe-Yu Daniel Lin, Leslie W. Looney, Zhi-Yun Li, Haifeng Yang, Ian W. Stephens, Manuel Fernández-López   +6 more
doaj   +1 more source

How Large Is a Disk—What Do Protoplanetary Disk Gas Sizes Really Mean?

The Astrophysical Journal, 2023
It remains unclear what mechanism is driving the evolution of protoplanetary disks. Direct detection of the main candidates, either turbulence driven by magnetorotational instabilities or magnetohydrodynamical disk winds, has proven difficult, leaving ...
Leon Trapman, Giovanni Rosotti, Ke Zhang, Benoît Tabone   +3 more
doaj   +1 more source

Extinction Values toward Embedded Planets in Protoplanetary Disks Estimated from Hydrodynamic Simulations

The Astrophysical Journal
Upcoming new coronographs with deeper contrast limits, together with planned and current high-contrast imaging campaigns, will push the detectability limit of protoplanets.
Felipe Alarcón, Edwin A. Bergin, Gabriele Cugno   +2 more
doaj   +1 more source

Petrofabrics in the CM chondrite Kolang: Evidence for non‐spherical chondrules in the protoplanetary disk

Meteoritics &Planetary Science, Volume 60, Issue 2, Page 190-205, February 2025.
Abstract The alignment of non‐spherical “flattened” chondrules into a petrofabric is a common feature of hydrated carbonaceous chondrite meteorites. This texture can form as a result of impacts at peak shock pressures exceeding 10 GPa. However, many carbonaceous chondrites with petrofabrics are unshocked.
Laura E. Jenkins, Martin R. Lee, Luke Daly, Ashley J. King, Cameron J. Floyd, Peter Chung, Sammy Griffin   +6 more
wiley   +1 more source

Dust Coagulation Reconciles Protoplanetary Disk Observations with the Vertical Shear Instability. I. Dust Coagulation and the VSI Dead Zone

The Astrophysical Journal, 2023
Protoplanetary disks exhibit a vertical gradient in angular momentum, rendering them susceptible to the vertical shear instability (VSI). The most important condition for the onset of this mechanism is a short timescale of thermal relaxation (≲0.1 ...
Thomas Pfeil, Tilman Birnstiel, Hubert Klahr   +2 more
doaj   +1 more source

Search for pre‐accretionary irradiation effects in calcium‐aluminum inclusions from the CV3 chondrite Allende

Meteoritics &Planetary Science, Volume 60, Issue 2, Page 247-272, February 2025.
Abstract Calcium‐aluminum‐rich inclusions (CAIs) are the first objects that formed in the solar accretion disk and therefore provide valuable insights into the evolution of the early solar system. A long‐standing question regarding this earliest formative period relates to the storage of CAIs in the 1–4 Myr time period between their formation and later
P. Ghaznavi, C. Burkhardt, F. L. H. Tissot, I. Leya   +3 more
wiley   +1 more source

Radiation hydrodynamics including irradiation and adaptive mesh refinement with AZEuS. I. Methods

, 2014
Aims. The importance of radiation to the physical structure of protoplanetary disks cannot be understated. However, protoplanetary disks evolve with time, and so to understand disk evolution and by association, disk structure, one should solve the ...
Dullemond, C. P., Ramsey, J. P.
core   +1 more source

The Meteoritical Society: Business from 2023 to 2024

Meteoritics &Planetary Science, Volume 60, Issue 3, Page 680-696, March 2025.
Nancy L. Chabot, Jutta Zipfel, Tasha L. Dunn   +2 more
wiley   +1 more source

Zirconium isotope composition indicates s‐process depletion in samples returned from asteroid Ryugu

Meteoritics &Planetary Science, Volume 60, Issue 1, Page 3-16, January 2025.
Abstract Nucleosynthetic isotope variations are powerful tracers to determine genetic relationships between meteorites and planetary bodies. They can help to link material collected by space missions to known meteorite groups. The Hayabusa 2 mission returned samples from the Cb‐type asteroid (162173) Ryugu.
Maria Schönbächler, Manuela A. Fehr, Tetsuya Yokoyama, Ikshu Gautam, Nao Nakanishi, Yoshinari Abe, Jérôme Aléon, Conel Alexander, Sachiko Amari, Yuri Amelin, Ken‐ichi Bajo, Martin Bizzarro, Audrey Bouvier, Richard W. Carlson, Marc Chaussidon, Byeon‐Gak Choi, Nicolas Dauphas, Andrew M. Davis, Tommaso Di Rocco, Wataru Fujiya, Ryota Fukai, Makiko K. Haba, Yuki Hibiya, Hiroshi Hidaka, Hisashi Homma, Peter Hoppe, Gary R. Huss, Kiyohiro Ichida, Tsuyoshi Iizuka, Trevor Ireland, Akira Ishikawa, Shoichi Itoh, Noriyuki Kawasaki, Noriko T. Kita, Koki Kitajima, Thorsten Kleine, Shintaro Komatani, Alexander N. Krot, Ming‐Chang Liu, Yuki Masuda, Mayu Morita, Kazuko Motomura, Frédéric Moynier, Izumi Nakai, Kazuhide Nagashima, Ann Nguyen, Larry Nittler, Morihiko Onose, Andreas Pack, Changkun Park, Laurette Piani, Liping Qin, Sara Russell, Naoya Sakamoto, Lauren Tafla, Haolan Tang, Kentaro Terada, Yasuko Terada, Tomohiro Usui, Sohei Wada, Meenakshi Wadhwa, Richard J. Walker, Katsuyuki Yamashita, Qing‐Zhu Yin, Shigekazu Yoneda, Edward D. Young, Hiroharu Yui, Ai‐Cheng Zhang, Tomoki Nakamura, Hiroshi Naraoka, Takaaki Noguchi, Ryuji Okazaki, Kanako Sakamoto, Hikaru Yabuta, Masanao Abe, Akiko Miyazaki, Aiko Nakato, Masahiro Nishimura, Tatsuaki Okada, Toru Yada, Kasumi Yogata, Satoru Nakazawa, Takanao Saiki, Satoshi Tanaka, Fuyuto Terui, Yuichi Tsuda, Sei‐ichiro Watanabe, Makoto Yoshikawa, Shogo Tachibana, Hisayoshi Yurimoto   +89 more
wiley   +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