Results 121 to 130 of about 55,496 (241)

Consequences of the simultaneous formation of giant planets by the core accretion mechanism [PDF]

, 2010
The core accretion mechanism is presently the most widely accepted cause of the formation of giant planets. For simplicity, most models presently assume that the growth of planetary embryos occurs in isolation.
A. Brunini, Adachi, Alibert, Alibert, Balbus, Benvenuto, Bodenheimer, Brunini, Chambers, Dodson-Robinson, Fortier, Fortier, Gammie, Guillot, Haisch, Hasegawa, Hayashi, Hubickyj, Ida, Ida, Inaba, Inaba, Johansen, Kokubo, Kokubo, Kokubo, Kornet, Lissauer, Lodders, Matsumura, Mayer, Militzer, Mizuno, Morbidelli, Mordasini, O. G. Benvenuto, O. M. Guilera, Ohtsuki, Ormel, Pollack, Pringle, Sano, Shakura, Shiraishi, Tanaka, Tanaka, Teiser, Thommes, Tsiganis, Wetherill, Zhou   +50 more
core   +5 more sources

Application of Magnetohydrodynamic Disk Wind Solutions to Planetary and Protoplanetary Nebulae [PDF]

The Astrophysical Journal, 2004
Winds from accretion disks have been proposed as the driving source for precessing jets and extreme bipolar morphologies in Planetary Nebulae (PNe) and proto-PNe (pPNe). In this paper we address the applicability MHD disk wind models to PNe and pPNe. We first review Pelletier & Pudritz's (1992) non self-similar approach to magneto-centrifugal disk ...
E. G. Blackman, Adam Frank
openaire   +3 more sources

Detection and quantification of organosulfur species in the Tagish Lake Meteorite by highly sensitive LC‐MS

Meteoritics &Planetary Science, Volume 59, Issue 9, Page 2241-2259, September 2024.
Abstract We analyzed the methanol extracts of six pristine specimens of the Tagish Lake meteorite (TL1, TL4, TL5A, TL6, TL7, and TL10a) and heated and unheated samples of Allende using high‐performance liquid chromatography coupled with high‐resolution, accurate mass–mass spectrometry (HPLC‐HRAM‐MS).
N. Randazzo, R. W. Hilts, M. C. Holt, C. D. K. Herd, B. Reiz, R. M. Whittal   +5 more
wiley   +1 more source

Discovery of Radio Recombination Lines from Proplyds in the Orion Nebula Cluster

The Astrophysical Journal
We present new Atacama Large Millimeter/submillimeter Array observations that, for the first time, detect hydrogen and helium radio recombination lines from a protoplanetary disk.
Ryan D. Boyden, Kimberly L. Emig, Nicholas P. Ballering, Charles J. Law, Thomas J. Haworth, Jonathan C. Tan, L. Ilsedore Cleeves, Zhi-Yun Li   +7 more
doaj   +1 more source

Evolution of oxygen isotopic composition in the inner solar nebula

, 2005
Changes in the chemical and isotopic composition of the solar nebula with time are reflected in the properties of different constituents that are preserved in chondritic meteorites. CR carbonaceous chondrites are among the most primitive of all chondrite
Aleon J., Alexander N. Krot, Cassen P., Catanzaro E., Desch S. J., Edward R. D. Scott, Guy Libourel, Hisayoshi Yurimoto, Ian D. Hutcheon, Jeffrey N. Cuzzi, Jerome Aleon, Kevin D. McKeegan, Klerner S., Kobayashi S., Krot A. N., Krot A. N., Krot A. N., Krot A. N., Krot A. N., Krot A. N., Lee T., MacPherson G. J., Marc Chaussidon, Marhas K. K., Marhas K. K., McKeegan K. D., McKeegan K. D., Michael I. Petaev, Scott E. R. D., Weidenschilling S. J., Woolum D. S.   +30 more
core   +1 more source

Hydrogen in magnetite from asteroid Ryugu

Meteoritics &Planetary Science, Volume 59, Issue 8, Page 2058-2072, August 2024.
Abstract In order to gain insights on the conditions of aqueous alteration on asteroid Ryugu and the origin of water in the outer solar system, we developed the measurement of water content in magnetite at the micrometer scale by secondary ion mass spectrometry (NanoSIMS) and determined the H and Si content of coarse‐grained euhedral magnetite grains ...
J. Aléon, S. Mostefaoui, H. Bureau, D. Vangu, H. Khodja, K. Nagashima, N. Kawasaki, Y. Abe, C. M. O'D. Alexander, S. Amari, Y. Amelin, K. Bajo, M. Bizzarro, A. Bouvier, R. W. Carlson, M. Chaussidon, B.‐G. Choi, N. Dauphas, A. M. Davis, T. Di Rocco, W. Fujiya, R. Fukai, I. Gautam, M. K. Haba, Y. Hibiya, H. Hidaka, H. Homma, P. Hoppe, G. R. Huss, K. Ichida, T. Iizuka, T. R. Ireland, A. Ishikawa, S. Itoh, N. T. Kita, K. Kitajima, T. Kleine, S. Komatani, A. N. Krot, M.‐C. Liu, Y. Masuda, M. Morita, K. Motomura, F. Moynier, I. Nakai, A. Nguyen, L. R. Nittler, M. Onose, A. Pack, C. Park, L. Piani, L. Qin, S. S. Russell, N. Sakamoto, M. Schönbächler, L. Tafla, H. Tang, K. Terada, Y. Terada, T. Usui, S. Wada, M. Wadhwa, R. J. Walker, K. Yamashita, Q.‐Z. Yin, T. Yokoyama, S. Yoneda, E. D. Young, H. Yui, A.‐C. Zhang, T. Nakamura, H. Naraoka, T. Noguchi, R. Okazaki, K. Sakamoto, H. Yabuta, M. Abe, A. Miyazaki, A. Nakato, M. Nishimura, T. Okada, T. Yada, K. Yogata, S. Nakazawa, T. Saiki, S. Tanaka, F. Terui, Y. Tsuda, S. Watanabe, M. Yoshikawa, S. Tachibana, H. Yurimoto   +91 more
wiley   +1 more source

Unraveling the Cr Isotopes of Ryugu: An Accurate Aqueous Alteration Age and the Least Thermally Processed Solar System Material

The Astrophysical Journal
The analysis of samples returned from the C-type asteroid Ryugu has drastically advanced our knowledge of the evolution of early solar system materials.
Ryoji Tanaka, Dilan M. Ratnayake, Tsutomu Ota, Noah Miklusicak, Tak Kunihiro, Christian Potiszil, Chie Sakaguchi, Katsura Kobayashi, Hiroshi Kitagawa, Masahiro Yamanaka, Masanao Abe, Akiko Miyazaki, Aiko Nakato, Satoru Nakazawa, Masahiro Nishimura, Tatsuaki Okada, Takanao Saiki, Satoshi Tanaka, Fuyuto Terui, Yuichi Tsuda, Tomohiro Usui, Sei-ichiro Watanabe, Toru Yada, Kasumi Yogata, Makoto Yoshikawa, Eizo Nakamura   +25 more
doaj   +1 more source

Two-Dimensional Transport of Solids in Viscous Protoplanetary Disks [PDF]

, 2008
Large-scale radial transport of solids appears to be a fundamental consequence of protoplanetary disk evolution based on the presence of high temperature minerals in comets and the outer regions of protoplanetary disks around other stars. Further, inward transport of solids from the outer regions of the solar nebula has been postulated to be the manner
arxiv   +1 more source

Magnetic Fields Recorded by Chondrules Formed in Nebular Shocks

, 2018
Recent laboratory efforts (Fu et al., 2014) have constrained the remanent magnetizations of chondrules and the magnetic field strengths at which the chondrules were exposed to as they cooled below their Curie points.
Boley, Aaron C., Desch, Steven J., Mai, Chuhong, Weiss, Benjamin P.   +3 more
core   +1 more source

Models of a protoplanetary disk forming in-situ the Galilean and smaller nearby satellites before Jupiter is formed [PDF]

arXiv, 2019
We fit an isothermal oscillatory density model of Jupiter's protoplanetary disk to the present-day Galilean and other nearby satellites and we determine the radial scale length of the disk, the equation of state and the central density of the primordial gas, and the rotational state of the Jovian nebula. Although the radial density profile of Jupiter's
arxiv