On disc driven inward migration of resonantly coupled planets with
... We consider two protoplanets gravitationally interacting with each other and a protoplanetary disc. The two planets orbit interior to a tidally maintained disc cavity while the disc interaction induces inward migration. This migration is of type II and so is regulated by the magnitude of the disc vi ...
... We consider two protoplanets gravitationally interacting with each other and a protoplanetary disc. The two planets orbit interior to a tidally maintained disc cavity while the disc interaction induces inward migration. This migration is of type II and so is regulated by the magnitude of the disc vi ...
Chapter 13 Problems
... rotates about a star (Fig. P13.51). The tangential speed of the ring is 1.25 106 m/s, and its radius is 1.53 1011 m. (a) Show that the centripetal acceleration of the inhabitants is 10.2 m/s2. (b) The inhabitants of this ring world live on the starlit inner surface of the ring. Each person exper ...
... rotates about a star (Fig. P13.51). The tangential speed of the ring is 1.25 106 m/s, and its radius is 1.53 1011 m. (a) Show that the centripetal acceleration of the inhabitants is 10.2 m/s2. (b) The inhabitants of this ring world live on the starlit inner surface of the ring. Each person exper ...
The model of the formation of solar system formation in The Urantia
... Traditionally, the solar system has been considered to have nine planets. However, the recent discovery of two large objects in the Kuiper Belt has led to a debate about the definition of the word "planet" and whether Pluto should have that status, and if it does whether the new objects should as we ...
... Traditionally, the solar system has been considered to have nine planets. However, the recent discovery of two large objects in the Kuiper Belt has led to a debate about the definition of the word "planet" and whether Pluto should have that status, and if it does whether the new objects should as we ...
The gorilla connection
... Gould et al.1 analysed data obtained using a different technique, microlensing. Here, a relatively faint star passing in front of a distant bright star acts as a gravitational lens, focusing light from the distant object, magnifying it and causing it to brighten and fade with a characteristic ‘light ...
... Gould et al.1 analysed data obtained using a different technique, microlensing. Here, a relatively faint star passing in front of a distant bright star acts as a gravitational lens, focusing light from the distant object, magnifying it and causing it to brighten and fade with a characteristic ‘light ...
6th Grade Great Barrier Reef
... The Universe: Big and Getting Bigger! Beyond the Milky Way, there are billions more stars in the galaxies that are our closest neighbors. One of our close neighbors is the Andromeda galaxy, but don’t expect to travel there soon. Even though Andromeda is closer to us than most other galaxies, i ...
... The Universe: Big and Getting Bigger! Beyond the Milky Way, there are billions more stars in the galaxies that are our closest neighbors. One of our close neighbors is the Andromeda galaxy, but don’t expect to travel there soon. Even though Andromeda is closer to us than most other galaxies, i ...
Chapter 1: Introduction to Earth Science Indiana State Standards 1
... planets have been identified orbiting stars other than the sun. SCI.ES.2.3 2010 Recognize that the sun is the main source of external energy for the Earth. Describe the cycles of solar energy and some of their impacts on the Earth. SCI.ES.2.4 2010 Describe the motions of the various kinds of objects ...
... planets have been identified orbiting stars other than the sun. SCI.ES.2.3 2010 Recognize that the sun is the main source of external energy for the Earth. Describe the cycles of solar energy and some of their impacts on the Earth. SCI.ES.2.4 2010 Describe the motions of the various kinds of objects ...
Transit detecion on eclipsing binary systems
... EB Transit detection algorithm (TDA) development Jenkins,Doyle & Cullers 1996: propose a matching filter TDA.The detection statistics C is obtained from a scalar multiplication of the vectors representing model-lc and observed data. Jenkins et al. present this TDA in the context of the transit dete ...
... EB Transit detection algorithm (TDA) development Jenkins,Doyle & Cullers 1996: propose a matching filter TDA.The detection statistics C is obtained from a scalar multiplication of the vectors representing model-lc and observed data. Jenkins et al. present this TDA in the context of the transit dete ...
Gemini - Sochias
... brown dwarfs around 86 stars – 1.6 m 5 sensitivity to > 0.5” m = 9.5 at 0.5” m = 12.9 at 1” – or 2 Mjup for 100 Myr old K0 star at d ~ 22 pc at 40-200 AU separation Second epoch observations of 48 stars confirm all candidates as unrelated background stars 95% upper limit of fractions of st ...
... brown dwarfs around 86 stars – 1.6 m 5 sensitivity to > 0.5” m = 9.5 at 0.5” m = 12.9 at 1” – or 2 Mjup for 100 Myr old K0 star at d ~ 22 pc at 40-200 AU separation Second epoch observations of 48 stars confirm all candidates as unrelated background stars 95% upper limit of fractions of st ...
Isaac Newton and the Laws of Motion and Gravitation 2
... It is often said that the Moon goes around the Earth or the Earth revolve around the Sun. But that is not exactly correct. The gravitational attraction between two objects is mutual. Just as the Moon feels the gravitational pull from the Earth, Earth is subjected to the gravitational pull from the T ...
... It is often said that the Moon goes around the Earth or the Earth revolve around the Sun. But that is not exactly correct. The gravitational attraction between two objects is mutual. Just as the Moon feels the gravitational pull from the Earth, Earth is subjected to the gravitational pull from the T ...
Discovering the Edge of the Solar System
... of whom still live in the Los Angeles area. Quaoar is about 1,300 kilometers in diameter, roughly half the size of Pluto. The existence of such a large KBO, along with a few others in the 1,000-kilometer range, suggests that there may be even larger objects out there. In this article I briefly descr ...
... of whom still live in the Los Angeles area. Quaoar is about 1,300 kilometers in diameter, roughly half the size of Pluto. The existence of such a large KBO, along with a few others in the 1,000-kilometer range, suggests that there may be even larger objects out there. In this article I briefly descr ...
intergalactic move
... The number of planets in our Solar System went from nine to eight! The planet that was kicked out of the club is Pluto. Since 2005 it’s no longer called a planet. In that year astronomers found Eris, an object in the outer Solar System. Eris is not a planet but even so, it was thought to be bigger ...
... The number of planets in our Solar System went from nine to eight! The planet that was kicked out of the club is Pluto. Since 2005 it’s no longer called a planet. In that year astronomers found Eris, an object in the outer Solar System. Eris is not a planet but even so, it was thought to be bigger ...
Information extracted from Britannica 97
... Triton's visible surface is covered by methane and nitrogen ices. Evidence of trace amounts of carbon monoxide and carbon dioxide ices also has been revealed in spectroscopic studies conducted from the Earth. Even at the remarkably low 38 K surface temperature, sublimation of nitrogen ice is suffic ...
... Triton's visible surface is covered by methane and nitrogen ices. Evidence of trace amounts of carbon monoxide and carbon dioxide ices also has been revealed in spectroscopic studies conducted from the Earth. Even at the remarkably low 38 K surface temperature, sublimation of nitrogen ice is suffic ...
the solar system - HMXEarthScience
... of the starlight when it is between Ogle-Tr-3 and Earth. This observation allowed scientists to find not only the planet, but also to determine the planet’s mass and density The mass has been calculated to be approximately 159 times the mass of Earth. The planet is only 20% as dense as Jupiter. Scie ...
... of the starlight when it is between Ogle-Tr-3 and Earth. This observation allowed scientists to find not only the planet, but also to determine the planet’s mass and density The mass has been calculated to be approximately 159 times the mass of Earth. The planet is only 20% as dense as Jupiter. Scie ...
Astronomy Exam Notes.docx
... King of planets (largest in our solar system) o Large ball of gas many “moons” (64 satellites) like a mini solar system Saturn o Gaseous o Rings composed of ice, dust, small rocks o Many satellites “moons” (more than Jupiter) Uranus o Gaseous o Cold Neptune o Farthest “true” planet from the sun – 30 ...
... King of planets (largest in our solar system) o Large ball of gas many “moons” (64 satellites) like a mini solar system Saturn o Gaseous o Rings composed of ice, dust, small rocks o Many satellites “moons” (more than Jupiter) Uranus o Gaseous o Cold Neptune o Farthest “true” planet from the sun – 30 ...
astro 001.101 summer 2002 exam 2
... the larger (dashed) circle. Please refer to this diagram when responding to Questions 20 – 21. 20. As viewed from Earth, a planet such as Mars would be observed to be in retrograde motion when at what position? a) b) c) d) ...
... the larger (dashed) circle. Please refer to this diagram when responding to Questions 20 – 21. 20. As viewed from Earth, a planet such as Mars would be observed to be in retrograde motion when at what position? a) b) c) d) ...
04 Solar System
... Most also spin in that direction, and most also have large moons that orbit in that direction. ...
... Most also spin in that direction, and most also have large moons that orbit in that direction. ...
Voyager Program
... As the Voyagers cruise gracefully in the solar wind, their fields, particles and waves instruments are studying the space around them. In May 1993, scientists concluded that the plasma wave experiment was picking up radio emissions that originate at the heliopause -the outer edge of our solar system ...
... As the Voyagers cruise gracefully in the solar wind, their fields, particles and waves instruments are studying the space around them. In May 1993, scientists concluded that the plasma wave experiment was picking up radio emissions that originate at the heliopause -the outer edge of our solar system ...
What is a Solar System?
... end of its life it undergoes a supernova explosion, leaving behind its incredibly dense core. A soup-can full of neutron star material would have about the same mass as our Moon. There only objects known to exist in the Universe that have greater density are black holes. 6. Brown Dwarfs Brown Dwarfs ...
... end of its life it undergoes a supernova explosion, leaving behind its incredibly dense core. A soup-can full of neutron star material would have about the same mass as our Moon. There only objects known to exist in the Universe that have greater density are black holes. 6. Brown Dwarfs Brown Dwarfs ...
Comets - Astronomy @ Walton High School
... •Asteroids are small solar system bodies that orbit the Sun. Made of rock and metal, they can also contain organic compounds. Asteroids are similar to comets but do not have a visible coma (fuzzy outline and tail) like comets do. Meteoroid •A meteoroid is a small rock or particle of debris in our so ...
... •Asteroids are small solar system bodies that orbit the Sun. Made of rock and metal, they can also contain organic compounds. Asteroids are similar to comets but do not have a visible coma (fuzzy outline and tail) like comets do. Meteoroid •A meteoroid is a small rock or particle of debris in our so ...
Uranus Neptune ppt NOTES
... have been shattered by an impact, and is still putting itself back together – Long cracks or faults riddle its surface – Rolling hills adjacent to wrinkled terrain ...
... have been shattered by an impact, and is still putting itself back together – Long cracks or faults riddle its surface – Rolling hills adjacent to wrinkled terrain ...
Planets beyond Neptune
Following the discovery of the planet Neptune in 1846, there was considerable speculation that another planet might exist beyond its orbit. The search began in the mid-19th century and culminated at the start of the 20th with Percival Lowell's quest for Planet X. Lowell proposed the Planet X hypothesis to explain apparent discrepancies in the orbits of the giant planets, particularly Uranus and Neptune, speculating that the gravity of a large unseen ninth planet could have perturbed Uranus enough to account for the irregularities.Clyde Tombaugh's discovery of Pluto in 1930 appeared to validate Lowell's hypothesis, and Pluto was officially named the ninth planet. In 1978, Pluto was conclusively determined to be too small for its gravity to affect the giant planets, resulting in a brief search for a tenth planet. The search was largely abandoned in the early 1990s, when a study of measurements made by the Voyager 2 spacecraft found that the irregularities observed in Uranus's orbit were due to a slight overestimation of Neptune's mass. After 1992, the discovery of numerous small icy objects with similar or even wider orbits than Pluto led to a debate over whether Pluto should remain a planet, or whether it and its neighbours should, like the asteroids, be given their own separate classification. Although a number of the larger members of this group were initially described as planets, in 2006 the International Astronomical Union reclassified Pluto and its largest neighbours as dwarf planets, leaving Neptune the farthest known planet in the Solar System.Today, the astronomical community widely agrees that Planet X, as originally envisioned, does not exist, but the concept of Planet X has been revived by a number of astronomers to explain other anomalies observed in the outer Solar System. In popular culture, and even among some astronomers, Planet X has become a stand-in term for any undiscovered planet in the outer Solar System, regardless of its relationship to Lowell's hypothesis. Other trans-Neptunian planets have also been suggested, based on different evidence. As of March 2014, observations with the WISE telescope have ruled out the possibility of a Saturn-sized object out to 10,000 AU, and a Jupiter-sized or larger object out to 26,000 AU.