Zobrazeno 1 - 10
of 268
pro vyhledávání: '"David Nesvorný"'
Publikováno v:
The Astrophysical Journal Letters, Vol 966, Iss 1, p L8 (2024)
The solar system’s distant reaches exhibit a wealth of anomalous dynamical structure, hinting at the presence of a yet-undetected, massive trans-Neptunian body—Planet Nine (P9). Previous analyses have shown how orbital evolution induced by this o
Externí odkaz:
https://doaj.org/article/3aa8a35d9be04a51bd073427d84d9126
Publikováno v:
The Astrophysical Journal Supplement Series, Vol 274, Iss 2, p 25 (2024)
The proper elements of asteroids are obtained from the instantaneous orbital elements by removing periodic oscillations produced by gravitational interactions with planets. They are unchanged in time, at least if chaotic dynamics and nongravitational
Externí odkaz:
https://doaj.org/article/7d190bc1e6d84921939721588e14d058
Publikováno v:
The Planetary Science Journal, Vol 5, Iss 8, p 170 (2024)
We estimate the loss of nitrogen from Pluto over its lifetime, including the giant planet instability period, which we term the “Wild Years.” We analyze the orbital migration of 53 simulated Plutinos, which are Kuiper Belt Objects (KBOs) captured
Externí odkaz:
https://doaj.org/article/7e3645a86729445db482ee327aaa8854
Publikováno v:
The Astrophysical Journal, Vol 968, Iss 1, p 47 (2024)
Modified Newtonian dynamics (MOND), which postulates a breakdown of Newton's laws of gravity/dynamics below some critical acceleration threshold, can explain many otherwise puzzling observational phenomena on galactic scales. MOND competes with the h
Externí odkaz:
https://doaj.org/article/b4e65740c8494bbd9f43002bed0e497b
Autor:
Rogerio Deienno, David Nesvorný, Matthew S. Clement, William F. Bottke, André Izidoro, Kevin J. Walsh
Publikováno v:
The Planetary Science Journal, Vol 5, Iss 5, p 110 (2024)
The main asteroid belt (MAB) is known to be primarily composed of objects from two distinct taxonomic classes, generically defined here as S- and C-complex. The former probably originated from the inner solar system (interior to Jupiter’s orbit), w
Externí odkaz:
https://doaj.org/article/f6c86c4e955c4859b0ab19445cfa1654
Autor:
William F. Bottke, David Vokrouhlický, David Nesvorný, Raphael Marschall, Alessandro Morbidelli, Rogerio Deienno, Simone Marchi, Michelle Kirchoff, Luke Dones, Harold F. Levison
Publikováno v:
The Planetary Science Journal, Vol 5, Iss 4, p 88 (2024)
The origins of the giant planet satellites are debated, with scenarios including formation from a protoplanetary disk, sequential assembly from massive rings, and recent accretion after major satellite–satellite collisions. Here, we test their pred
Externí odkaz:
https://doaj.org/article/cdc07a077a9440ac97b73119fe9f9e07
Autor:
David Vokrouhlický, David Nesvorný, Miroslav Brož, William F. Bottke, Rogerio Deienno, Carson D. Fuls, Frank C. Shelly
Publikováno v:
The Astronomical Journal, Vol 167, Iss 3, p 138 (2024)
Jupiter Trojans (JTs) librate about the Lagrangian stationary centers L4 and L5 associated with this planet on typically small-eccentricity and moderate-inclination heliocentric orbits. The physical and orbital properties of JTs provide important clu
Externí odkaz:
https://doaj.org/article/f0268f2f19da4509bfccba5fe54f4dcd
Autor:
Martin Bizzarro, Martin Schiller, Tetsuya Yokoyama, Yoshinari Abe, Jérôme Aléon, Conel M. O’D. Alexander, Sachiko Amari, Yuri Amelin, Ken-ichi Bajo, Audrey Bouvier, Richard W. Carlson, Marc Chaussidon, Byeon-Gak Choi, Nicolas Dauphas, Andrew M. Davis, Tommaso Di Rocco, Wataru Fujiya, Ryota Fukai, Ikshu Gautam, Makiko K. Haba, Yuki Hibiya, Hiroshi Hidaka, Hisashi Homma, Peter Hoppe, Gary R. Huss, Kiyohiro Ichida, Tsuyoshi Iizuka, Trevor R. Ireland, Akira Ishikawa, Shoichi Itoh, Noriyuki Kawasaki, Noriko T. Kita, Kouki Kitajima, Thorsten Kleine, Shintaro Komatani, Alexander N. Krot, Ming-Chang Liu, Yuki Masuda, Mayu Morita, Fréderic Moynier, Kazuko Motomura, Izumi Nakai, Kazuhide Nagashima, David Nesvorný, Ann Nguyen, Larry Nittler, Morihiko Onose, Andreas Pack, Changkun Park, Laurette Piani, Liping Qin, Sara S. Russell, Naoya Sakamoto, Maria Schönbächler, 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
Publikováno v:
The Astrophysical Journal Letters, Vol 958, Iss 2, p L25 (2023)
The nucleosynthetic isotope composition of planetary materials provides a record of the heterogeneous distribution of stardust within the early solar system. In 2020 December, the Japan Aerospace Exploration Agency Hayabusa2 spacecraft returned to Ea
Externí odkaz:
https://doaj.org/article/54d24c5baaac4f4990a9d2861c903077
Autor:
William F. Bottke, David Vokrouhlický, Raphael Marschall, David Nesvorný, Alessandro Morbidelli, Rogerio Deienno, Simone Marchi, Luke Dones, Harold F. Levison
Publikováno v:
The Planetary Science Journal, Vol 4, Iss 9, p 168 (2023)
The tumultuous early era of outer solar system evolution culminated when Neptune migrated across the primordial Kuiper Belt (PKB) and triggered a dynamical instability among the giant planets. This event led to the ejection of ∼99.9% of the PKB (he
Externí odkaz:
https://doaj.org/article/17a3eb0a82994695bcb959d9068cc1ef
Publikováno v:
The Planetary Science Journal, Vol 4, Iss 8, p 139 (2023)
Previous studies of cometary impacts in the outer solar system used the spatial distribution of ecliptic comets (ECs) from dynamical models that assumed ECs began on low-inclination orbits (≲5°) in the Kuiper Belt. In reality, the source populatio
Externí odkaz:
https://doaj.org/article/9c3e84008bb24ff08630fa19580fd7b4