scholarly journals Resonant trans-Neptunian objects as a source of Jupiter-family comets

2006 ◽  
Vol 2 (S236) ◽  
pp. 31-34
Author(s):  
E. L. Kiseleva ◽  
V. V. Emel'yanenko

AbstractThe dynamical interrelation between resonant trans-Neptunian objects and short-period comets is studied. Initial orbits of resonant objects are based on computations in the model of the outward transport of objects during Neptune's migration in the early history of the outer Solar system. The dynamical evolution of this population is investigated for 4.5 Gyr, using a symplectic integrator. Our calculations show that resonant trans-Neptunian objects give a substantial contribution to the planetary region. We have estimated that the relative fraction of objects captured per year from the 2/3 resonance to Jupiter-family orbits with perihelion distances q<2.5 AU is 0.4×10−10 near the present epoch.

1986 ◽  
Vol 34 (2) ◽  
pp. 145-154 ◽  
Author(s):  
H. Alfvén ◽  
I. Axnäs ◽  
N. Brenning ◽  
P.A. Lindqvist

Science ◽  
1973 ◽  
Vol 182 (4109) ◽  
pp. 281-283 ◽  
Author(s):  
G. W. Wetherill ◽  
R. Mark ◽  
C. Lee-Hu

2011 ◽  
Vol 33 (2-3) ◽  
pp. 685-721 ◽  
Author(s):  
Philippe Lamy ◽  
Pierre Vernazza ◽  
Joel Poncy ◽  
Vincent Martinot ◽  
Emmanuel Hinglais ◽  
...  

1992 ◽  
Vol 9 ◽  
pp. 341-345
Author(s):  
T. Owen

AbstractValues of D/H measured in the methane on the giant planets and Titan indicate the presence of two distinct reservoirs of deuterium in the outer solar system. The dominant reservoir is in hydrogen gas, the second, multi-component reservoir is found in the hydrogen that is bound in condensed compounds. Both reservoirs appear to have originated in the interstellar medium. In contrast, the values of D/H in water vapor on Mars and Venus (especially) exhibit a large enrichment from the “condensed matter” starting value. Interpretation of this enrichment may illuminate the history of water on these two planets.


1992 ◽  
Vol 150 ◽  
pp. 97-101 ◽  
Author(s):  
T. Owen

Values of D/H measured in the methane on the giant planets and Titan indicate the presence of two distinct reservoirs of deuterium in the outer solar system. The dominant reservoir is in hydrogen gas, the second, multi-component reservoir is found in the hydrogen that is bound in condensed compounds. Both reservoirs appear to have originated in the interstellar medium. In contrast, the values of D/H in water vapor on Mars and Venus (especially) exhibit a large enrichment from the “condensed matter” starting value. Interpretation of this enrichment may illuminate the history of water on these two planets.


1994 ◽  
Vol 160 ◽  
pp. 31-44
Author(s):  
Jane Luu

The existence of a belt of comets in the outer solar system (the “Kuiper belt”) has been postulated for a variety of reasons, including the need for a source for the short-period comets. The existence of the belt seems supported by the discoveries of the trans-Neptunian objects 1992 QB1, 1993 FW, 1993 RO, 1993 RP, 1993 SB, and 1993 SC. If these objects are members of the Kuiper belt, crude lower limits on the belt population can be established from the discoveries. The Kuiper belt comets are likely to be primordial remnants of the disk from which the solar system accreted. According to the current theories of cometary nucleus evolution, these objects are expected to possess mantles (“irradiation mantles”) which are different from mantles of comets which have been heated to the point of sublimation (“rubble mantles”). Kuiper belt comets on their way to short-period comet orbits may exist among the Centaur objects.


1999 ◽  
Vol 172 ◽  
pp. 25-37
Author(s):  
S. Ferraz-Mello

AbstractThis paper reviews recent advances in several topics of resonant asteroidal dynamics as the role of resonances in the transportation of asteroids and asteroidal debris to the inner and outer solar system; the explanation of the contrast of a depleted 2/1 resonance (Hecuba gap) and a high-populated 3/2 resonance (Hilda group); the overall stochasticity created in the asteroid belt by the short-period perturbations of Jupiter’s orbit, with emphasis in the formation of significant three-period resonances, the chaotic behaviour of the outer asteroid belt, and the depletion of the Hecuba gap.


Nature ◽  
1918 ◽  
Vol 101 (2545) ◽  
pp. 447-449 ◽  
Author(s):  
HAROLD JEFFREYS

2020 ◽  
Author(s):  
Megan Schwamb ◽  
Michele Bannister ◽  
Michael Marsset ◽  
Wesley Fraser ◽  
Rosemary Pike ◽  
...  

&lt;p&gt;In August 2019, 2I/Borisov, the second interstellar object and first visibly active interstellar comet, was discovered on a trajectory nearly perpendicular to the ecliptic. Observations of planet forming disks and debris disks serve as probes of the ensemble properties of extrasolar planetesimals, but the passage of an active interstellar comet through our Solar System provides a rare opportunity to individually study these small bodies up close in the same ways in which we investigate objects originating from our own Outer Solar System. Ground-based observations of short period comet &lt;span&gt;67P/Churyumov&amp;#8211;Gerasimenko&lt;/span&gt; revealed a coma dust composition indistinguishable from what was measured on its nucleus by the orbiting &lt;em&gt;Rosetta&lt;/em&gt; spacecraft. Therefore when 2/I Borisov had a dust dominated tail, we attempted to study its composition with near-simultaneous griJ photometry with the Gemini North Telescope. We obtained two epochs of GMOS-N and NIRI observations in November 2019, separated by two weeks. We will report on the inferred optical-near-IR colors of 2I/I Borisov&amp;#8217;s dust coma/tail and nucleus. We will compare our measurements to other observations of 2I/Borisov and place the interstellar comet in context with the Col-OSSOS (Colours of the Outer Solar System Survey) sample of small KBOs and interstellar object &lt;span&gt;&amp;#699;Oumuamua&lt;/span&gt; observed in grJ with Gemini North, using the same setup.&lt;/p&gt;


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