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Distribution and escape of molecular hydrogen in Titan's thermosphere and exosphere
10 10 cm � 2 s � 1 , referred to the surface. This is a factor of � 3 higher than the Jeans flux of 4.5 � 10 9 cm � 2 s � 1 , corresponding to a temperature of 152.5 ± 1.7 K, derived from the…
The Scattered Disk as the Source of the Jupiter Family Comets
- K. Volk, R. Malhotra
- Geology, Physics
- 26 February 2008
The short-period Jupiter family comets (JFCs) are thought to originate in the Kuiper Belt; specifically, a dynamical subclass of the Kuiper Belt known as the “scattered disk” is argued to be the…
CORRALLING A DISTANT PLANET WITH EXTREME RESONANT KUIPER BELT OBJECTS
- R. Malhotra, K. Volk, Xianyu Wang
- Physics, Geology
- 7 March 2016
The four longest period Kuiper Belt objects have orbital periods close to integer ratios with each other. A hypothetical planet with an orbital period of ∼17,117 years and a semimajor axis ∼665 au…
OSSOS. VI. Striking Biases in the Detection of Large Semimajor Axis Trans-Neptunian Objects
- C. Shankman, J. Kavelaars, K. Volk
- Geology, Physics
- 16 June 2017
The accumulating but small set of large semimajor axis trans-Neptunian objects (TNOs) shows an apparent clustering in the orientations of their orbits. This clustering must either be representative…
CONSOLIDATING AND CRUSHING EXOPLANETS: DID IT HAPPEN HERE?
- K. Volk, B. Gladman
- Physics, Geology
- 23 February 2015
The Kepler mission results indicate that systems of tightly packed inner planets (STIPs) are present around of order 5% of FGK field stars (whose median age is ∼5 Gyr). We propose that STIPs…
29P/Schwassmann–Wachmann 1, A Centaur in the Gateway to the Jupiter-family Comets
- G. Sarid, K. Volk, J. Steckloff, W. Harris, M. Womack, L. Woodney
- Physics, GeologyThe Astrophysical Journal
- 12 August 2019
Jupiter-family comets (JFCs) are the evolutionary products of trans-Neptunian objects (TNOs) that evolve through the giant planet region as Centaurs and into the inner solar system. Through numerical…
THE OUTER SOLAR SYSTEM ORIGINS SURVEY. I. DESIGN AND FIRST-QUARTER DISCOVERIES
- M. Bannister, J. Kavelaars, Shiang‐Yu Wang
- Geology
- 9 November 2015
We report the discovery, tracking, and detection circumstances for 85 trans-Neptunian objects (TNOs) from the first 42 deg2 of the Outer Solar System Origins Survey. This ongoing r-band solar system…
Grain size distributions and photoelectric heating in ionized media
- P. V. Hoof, J. Weingartner, P. Martin, K. Volk, G. Ferland
- Physics
- 16 February 2004
Ever since the pioneering study of Spitzer, it has been widely recognized that grains play an important role in the heating and cooling of photoionized environments. This includes the diffuse…
All planetesimals born near the Kuiper belt formed as binaries
- W. Fraser, M. Bannister, C. Trujillo
- Geology, Physics
- 4 April 2017
The discovery of several Kuiper belt objects (KBOs) with anomalous properties (they are blue-coloured, whereas KBOs of the same type are red, and they are all binaries) gives constraints on formation…
Accurate determination of the free-free Gaunt factor; I - non-relativistic Gaunt factors
- P. V. Hoof, R. Williams, Y. Wang
- Computer Science, Physics
- 18 July 2014
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