Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Comet dynamics"'
Publikováno v:
The Astrophysical Journal Letters, Vol 967, Iss 1, p L5 (2024)
The discovery of the transient Jupiter co-orbital comet P/2019 LD2 (ATLAS) drew significant interest. Not only will LD2 transition between being a Centaur and a Jupiter-family comet (JFC) in 2063, the first time this process can be observed as it hap
Externí odkaz:
https://doaj.org/article/e4049ce9812e4085b7646dfb92b4beec
Autor:
Anastasios Gkotsinas, David Nesvorný, Aurélie Guilbert-Lepoutre, Sean N. Raymond, Nathan Kaib
Publikováno v:
The Planetary Science Journal, Vol 5, Iss 11, p 243 (2024)
Born as ice-rich planetesimals, cometary nuclei were gravitationally scattered onto their current orbits in the Kuiper Belt and the Oort Cloud during the giant planets’ dynamical instability in the early stages of our solar system’s history. Here
Externí odkaz:
https://doaj.org/article/45ca7fd8e8cd4fe6a309a2132121cfe0
Autor:
William J. Oldroyd, Colin Orion Chandler, Chadwick A. Trujillo, Scott S. Sheppard, Henry H. Hsieh, Jay K. Kueny, William A. Burris, Jarod A. DeSpain, Kennedy A. Farrell, Michele T. Mazzucato, Milton K. D. Bosch, Tiffany Shaw-Diaz, Virgilio Gonano
Publikováno v:
The Astrophysical Journal Letters, Vol 957, Iss 1, p L1 (2023)
We have discovered two epochs of activity on quasi-Hilda 2009 DQ _118 . Small bodies that display comet-like activity, such as active asteroids and active quasi-Hildas, are important for understanding the distribution of water and other volatiles thr
Externí odkaz:
https://doaj.org/article/b587144677c34e008b54ee2cf479ae4f
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
Autor:
Matthew J. Holman, Arya Akmal, Davide Farnocchia, Hanno Rein, Matthew J. Payne, Robert Weryk, Daniel Tamayo, David M. Hernandez
Publikováno v:
The Planetary Science Journal, Vol 4, Iss 4, p 69 (2023)
We introduce ASSIST, a software package for ephemeris-quality integrations of test particles. ASSIST is an extension of the REBOUND framework and makes use of its IAS15 integrator to integrate test-particle trajectories in the field of the Sun, Moon,
Externí odkaz:
https://doaj.org/article/179fe2dacee74ad1aaa73663d779a22c
Publikováno v:
The Astrophysical Journal, Vol 942, Iss 2, p 92 (2023)
It was recently proposed that there exists a “gateway” in the orbital parameter space through which Centaurs transition to Jupiter-family comets (JFCs). Further studies have implied that the majority of objects that eventually evolve into JFCs sh
Externí odkaz:
https://doaj.org/article/70916d185b7840faba226d0ab98eec56
Publikováno v:
The Astrophysical Journal, Vol 943, Iss 1, p 26 (2023)
Comet 60P/Tsuchinshan is a Jupiter family comet. Since the discovery of 60P/Tsuchinshan, little research for cometary activity has been conducted on this comet, though it has returned to perihelion several times. To study the physical properties and
Externí odkaz:
https://doaj.org/article/0d7c65efef574e698b61d478631d2e32
Autor:
Davide Farnocchia, Darryl Z. Seligman, Mikael Granvik, Olivier Hainaut, Karen J. Meech, Marco Micheli, Robert Weryk, Steven R. Chesley, Eric J. Christensen, Detlef Koschny, Jan T. Kleyna, Daniela Lazzaro, Michael Mommert, Richard J. Wainscoat
Publikováno v:
The Planetary Science Journal, Vol 4, Iss 2, p 29 (2023)
We report a statistically significant detection of nongravitational acceleration on the subkilometer near-Earth asteroid (523599) 2003 RM. Due to its orbit, 2003 RM experiences favorable observing apparitions every 5 yr. Thus, since its discovery, 20
Externí odkaz:
https://doaj.org/article/f54a7814665c466c9e9d074134e250fb
Publikováno v:
The Planetary Science Journal, Vol 4, Iss 2, p 28 (2023)
We analyze jet features found in the coma of comet 21P/Giacobini–Zinner (21P/GZ) during its 2018 perihelion passage using narrowband CN photometric imaging in order to determine the comet’s rotational period, and we constrain the CN gas outflow v
Externí odkaz:
https://doaj.org/article/df91ea72d2d445318f1042baac5aa423
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