PLUTO - Department of Earth and Planetary Sciences, Northwestern
... Search for the 9th planet in the solar system has long been the ambition of many astronomers. Neptune has officially been claimed as the 8 th planet of our solar system since 1781 (although it's also observable to naked eyes) 9, but astronomers have been looking for a massive enough object (Planet X ...
... Search for the 9th planet in the solar system has long been the ambition of many astronomers. Neptune has officially been claimed as the 8 th planet of our solar system since 1781 (although it's also observable to naked eyes) 9, but astronomers have been looking for a massive enough object (Planet X ...
The Exploration of Neptune and Triton
... instruments on a Flagship mission would follow in the revolutionary footsteps of the Galileo and Cassini missions, but that does not imply a flagship mission is the only worthwhile platform for exploring the system. A smaller subset of those instruments, on a New Frontiers orbiter could address mult ...
... instruments on a Flagship mission would follow in the revolutionary footsteps of the Galileo and Cassini missions, but that does not imply a flagship mission is the only worthwhile platform for exploring the system. A smaller subset of those instruments, on a New Frontiers orbiter could address mult ...
The accretion of Uranus and Neptune by collisions among planetary
... long time. Owing to gas-drag, collisional damping, and resonant shepherding, the planetary embryos repel the planetesimals from their reach and that is why they stop growing. This problem persists independently of whether the accretion took place at the current locations of the ice giants or closer ...
... long time. Owing to gas-drag, collisional damping, and resonant shepherding, the planetary embryos repel the planetesimals from their reach and that is why they stop growing. This problem persists independently of whether the accretion took place at the current locations of the ice giants or closer ...
Early Dynamical Evolution of the Solar System: Pinning Down the
... extended periods of time. In fact, for slow enough migration rates and low enough eccentricities, resonant capture is certain (Peale 1986). When this happens, the gas between the two planets drains as the gaps overlap. Consequently, the torque balance on the resonant pair results from gas interior t ...
... extended periods of time. In fact, for slow enough migration rates and low enough eccentricities, resonant capture is certain (Peale 1986). When this happens, the gas between the two planets drains as the gaps overlap. Consequently, the torque balance on the resonant pair results from gas interior t ...
an ultradeep survey for irregular satellites of uranus
... detect objects that appeared in all three images from one night and which had a motion consistent with being beyond the orbit of Jupiter (speeds less than 2000 hr1). Second, all of the fields were examined by visually blinking them on a computer display screen for moving objects again with motions ...
... detect objects that appeared in all three images from one night and which had a motion consistent with being beyond the orbit of Jupiter (speeds less than 2000 hr1). Second, all of the fields were examined by visually blinking them on a computer display screen for moving objects again with motions ...
Accretion of Uranus and Neptune from inward
... by pebble accretion. The ice giants have large obliquities (spin axis inclinations relative to their orbital planes): about 90 degrees for Uranus and about 30 degrees for Neptune. A planet accreting only small bodies should have a null obliquity (Dones and Tremaine, 1993; Johansen and Lacerda, 2010) ...
... by pebble accretion. The ice giants have large obliquities (spin axis inclinations relative to their orbital planes): about 90 degrees for Uranus and about 30 degrees for Neptune. A planet accreting only small bodies should have a null obliquity (Dones and Tremaine, 1993; Johansen and Lacerda, 2010) ...
Solar System evolution from compositional mapping of the asteroid
... the other giant planets migrate outward. As Jupiter and Saturn cross their 1:2 mean motion resonance, the system is destabilized11. In the most recent version of this model, the interaction between the giant planets and a massive, distant Kuiper disk causes the system to destabilize13. At that point ...
... the other giant planets migrate outward. As Jupiter and Saturn cross their 1:2 mean motion resonance, the system is destabilized11. In the most recent version of this model, the interaction between the giant planets and a massive, distant Kuiper disk causes the system to destabilize13. At that point ...
Ultra Deep Survey for Irregular Satellites of Uranus
... instability models do not readily provide the hydrogen- and helium-depleted compositions of the two ice giants (Boss 2001). The massive hydrogen and helium gas giants Jupiter and Saturn likely formed quickly in the protoplanetary disk (106 yr). The less massive, deficient in hydrogen and helium, an ...
... instability models do not readily provide the hydrogen- and helium-depleted compositions of the two ice giants (Boss 2001). The massive hydrogen and helium gas giants Jupiter and Saturn likely formed quickly in the protoplanetary disk (106 yr). The less massive, deficient in hydrogen and helium, an ...
Planetary migration in a planetesimal disk: why did
... (1999) proposed a radical dierent view, in which Uranus and Neptune formed between Jupiter and Saturn and were scattered outwards, where the interactions with the disk of planetesimals damped their eccentricities and inclinations. Despite the importance of planetary migration, not much work has bee ...
... (1999) proposed a radical dierent view, in which Uranus and Neptune formed between Jupiter and Saturn and were scattered outwards, where the interactions with the disk of planetesimals damped their eccentricities and inclinations. Despite the importance of planetary migration, not much work has bee ...
ABSTRACT
... Part II is on the resonant interaction and evolution of the small Neptunian satellites, in which I focus on the small inclinations of the blue planet’s six small satellites and try to build a resonant history of the system based on their current orbits. Chapter 3 provides background information abou ...
... Part II is on the resonant interaction and evolution of the small Neptunian satellites, in which I focus on the small inclinations of the blue planet’s six small satellites and try to build a resonant history of the system based on their current orbits. Chapter 3 provides background information abou ...
Observing Uranus and its satellites (2006
... For the recording of the partial occultation I used a C11 SCT and an ATK 2HS camera. The images of Uranus and its satellites were made at the prime focus of the telescope. Frames were collected with an exposure time of 3 seconds per frame. The first image was made at 2h40m UT and the last at 3h17m ...
... For the recording of the partial occultation I used a C11 SCT and an ATK 2HS camera. The images of Uranus and its satellites were made at the prime focus of the telescope. Frames were collected with an exposure time of 3 seconds per frame. The first image was made at 2h40m UT and the last at 3h17m ...
the instability of venus trojans
... of the outer planets driven by planetesimal encounters. Planetesimals originating far outside of Jupiter’s orbit are transported by close encounters with the outer planets toward Jupiter’s orbit. As a consequence, the three outer planets migrate outward, while Jupiter migrates slightly toward the Su ...
... of the outer planets driven by planetesimal encounters. Planetesimals originating far outside of Jupiter’s orbit are transported by close encounters with the outer planets toward Jupiter’s orbit. As a consequence, the three outer planets migrate outward, while Jupiter migrates slightly toward the Su ...
Instructors` Guide
... Arrange all of the ingredients to build a comet on a large surface where students will not be working and where the comet will be clearly visible. Cover the surface with one garbage bag and then line the bowl with the other garbage bag. Discussion Activity and Questions: Begin by building a comet. A ...
... Arrange all of the ingredients to build a comet on a large surface where students will not be working and where the comet will be clearly visible. Cover the surface with one garbage bag and then line the bowl with the other garbage bag. Discussion Activity and Questions: Begin by building a comet. A ...
Making More Terrestrial Planets
... 1 AU. This dependency was chosen, since unlike Paper I, the initial embryos have masses that decrease with distance from the Sun (for a > 0.7 AU) rather than increasing in order to explore a new part of parameter space. In addition, it was hoped that using smaller embryos far from the Sun would help ...
... 1 AU. This dependency was chosen, since unlike Paper I, the initial embryos have masses that decrease with distance from the Sun (for a > 0.7 AU) rather than increasing in order to explore a new part of parameter space. In addition, it was hoped that using smaller embryos far from the Sun would help ...
Models of the collisional damping scenario for ice
... 40 and 47 AU. With the planets gone, this disk can become dynamically cold enough to allow large objects to grow in it, producing a second generation of KBOs on low-eccentricity and low-inclination orbits. These objects should be identified, in Chiang et al.’s (2007) scenario, with the observed cold ...
... 40 and 47 AU. With the planets gone, this disk can become dynamically cold enough to allow large objects to grow in it, producing a second generation of KBOs on low-eccentricity and low-inclination orbits. These objects should be identified, in Chiang et al.’s (2007) scenario, with the observed cold ...
High-resolution simulations of the final assembly of Earth
... mals, although these are still many orders of magnitude more massive than realistic planetesimals. The total mass in planetesimals and planetary embryos is 9.4 M⊕ , with roughly two thirds of the mass in planetesimals in the outer disk. The difference in total solid mass between simulations 0, 1 and ...
... mals, although these are still many orders of magnitude more massive than realistic planetesimals. The total mass in planetesimals and planetary embryos is 9.4 M⊕ , with roughly two thirds of the mass in planetesimals in the outer disk. The difference in total solid mass between simulations 0, 1 and ...
Lunar and terrestrial planet formation in the Grand Tack scenario
... inner disc of embryos and planetesimals, required to produce a small Mars as in Hansen’s model. Because of the prominent reversal of Jupiter’s migration that it assumes, the Walsh et al. [31] scenario is nicknamed the Grand Tack. A crucial diagnostic of the Grand Tack scenario is the survival of the ...
... inner disc of embryos and planetesimals, required to produce a small Mars as in Hansen’s model. Because of the prominent reversal of Jupiter’s migration that it assumes, the Walsh et al. [31] scenario is nicknamed the Grand Tack. A crucial diagnostic of the Grand Tack scenario is the survival of the ...
orbital resonances and chaos in the solar system
... young child is delighted in a playground swing when an older companion drives the swing at its natural frequency and rapidly increases the swing amplitude; the older child accomplishes the same on her own without outside assistance by driving the swing at a frequency twice that of its natural freque ...
... young child is delighted in a playground swing when an older companion drives the swing at its natural frequency and rapidly increases the swing amplitude; the older child accomplishes the same on her own without outside assistance by driving the swing at a frequency twice that of its natural freque ...
Pluto http://cseligman.com/text/planets/pluto.htm Pluto / The Rotation
... summary of how Pluto's unusual rotation affects its atmosphere. ...
... summary of how Pluto's unusual rotation affects its atmosphere. ...
Ultra Deep Survey for Irregular Satellites of Uranus: Limits to
... 15µm pixels give a scale of 0.′′ 20 pixel−1 at prime focus and a field-of-view that is about 34′ × 27′ with the North-South direction aligned with the long axis. Gaps between the chips are about 16′′ in the North-South direction and only 3′′ in the East-West direction. Images were obtained with a Kr ...
... 15µm pixels give a scale of 0.′′ 20 pixel−1 at prime focus and a field-of-view that is about 34′ × 27′ with the North-South direction aligned with the long axis. Gaps between the chips are about 16′′ in the North-South direction and only 3′′ in the East-West direction. Images were obtained with a Kr ...
Earth Venus Mars Mercury - Me=darwah
... Wind speeds can reach 250 m/s (900 km/h, 560 mph) It is the first planet discovered with a telescope. ...
... Wind speeds can reach 250 m/s (900 km/h, 560 mph) It is the first planet discovered with a telescope. ...
Disk planet interaction during the formation of extrasolar planets
... orbital migration and is due to interactions between the planet and a disc of gas or dust particles in the infancy of a planetary system. We have examined the dependance of the exchange in the specific angular momentum, derived through an impulse approximation, on the distance from the planet. This ...
... orbital migration and is due to interactions between the planet and a disc of gas or dust particles in the infancy of a planetary system. We have examined the dependance of the exchange in the specific angular momentum, derived through an impulse approximation, on the distance from the planet. This ...
Saturn - Heroku
... saturn owner assistance gm com - saturn owner assistance here you ll find the answers to all of your saturn questions browse below to find what you re looking for if you want additional, saturn overview planets nasa solar system exploration - the second largest planet in our solar system adorned wit ...
... saturn owner assistance gm com - saturn owner assistance here you ll find the answers to all of your saturn questions browse below to find what you re looking for if you want additional, saturn overview planets nasa solar system exploration - the second largest planet in our solar system adorned wit ...