Figueira, Pont, Mordasini, Alibert, Georgy, Benz
... in the 4-20 Earth-mass range (e.g. Lovis et al. 2004, Udry et al. 2007, Mayor et al. 2008) has motivated the development of several sets of structure models of these planets (Valencia et al. 2007; Fortney et al. 2007; Seager et al. 2007). As emphasized by these authors, the mass-radius relation is a ...
... in the 4-20 Earth-mass range (e.g. Lovis et al. 2004, Udry et al. 2007, Mayor et al. 2008) has motivated the development of several sets of structure models of these planets (Valencia et al. 2007; Fortney et al. 2007; Seager et al. 2007). As emphasized by these authors, the mass-radius relation is a ...
KEPLER: Search for Earth-Size Planets in the Habitable Zone
... 2007). Most of these are gas giants, but super earths in short period orbits are now being found (Rivera et al. 2005, Baglin, this conference, and Mayor personal communication). However, the next step in the exploration of planetary systems is to find habitable planets, that is, those in the habitab ...
... 2007). Most of these are gas giants, but super earths in short period orbits are now being found (Rivera et al. 2005, Baglin, this conference, and Mayor personal communication). However, the next step in the exploration of planetary systems is to find habitable planets, that is, those in the habitab ...
HS The Solar System
... movement of planets. At the beginning of the 16th century A.D., Nicolaus Copernicus proposed that Earth and all the other planets orbit the Sun. With the Sun at the center, this model is called the heliocentric model or "sun-centered" model of the universe (Figure 1.3). Copernicus’ model explained t ...
... movement of planets. At the beginning of the 16th century A.D., Nicolaus Copernicus proposed that Earth and all the other planets orbit the Sun. With the Sun at the center, this model is called the heliocentric model or "sun-centered" model of the universe (Figure 1.3). Copernicus’ model explained t ...
Solar system - Wikimedia Commons
... atmosphere from interacting with the solar wind. Venus and Mars do not have magnetic fields, and the solar wind causes their atmospheres to gradually bleed away into space.[36] The interaction of the solar wind with Earth's magnetic field creates the aurorae seen near the magnetic poles. Cosmic rays ...
... atmosphere from interacting with the solar wind. Venus and Mars do not have magnetic fields, and the solar wind causes their atmospheres to gradually bleed away into space.[36] The interaction of the solar wind with Earth's magnetic field creates the aurorae seen near the magnetic poles. Cosmic rays ...
latest Edition - ExoPlanet News
... samples of planet and non-planet hosts. Whether these chemical differences are indeed related to the presence of planets is still strongly debated. Aims. We aim to test whether solar-type stars with debris discs show any chemical peculiarity that could be related to the planet formation process. Met ...
... samples of planet and non-planet hosts. Whether these chemical differences are indeed related to the presence of planets is still strongly debated. Aims. We aim to test whether solar-type stars with debris discs show any chemical peculiarity that could be related to the planet formation process. Met ...
Cataclysmic Cosmic Events and How to Observe Them www.springer.com/series/5338
... In the Victorian era – or for non-British readers, the mid-to-late nineteenth century – amateur astronomy tended to center on Solar System objects. The Moon and planets, as well as bright comets, were the key objects of interest. The brighter variable stars were monitored, but photography was in it ...
... In the Victorian era – or for non-British readers, the mid-to-late nineteenth century – amateur astronomy tended to center on Solar System objects. The Moon and planets, as well as bright comets, were the key objects of interest. The brighter variable stars were monitored, but photography was in it ...
Subunit 2 - UNIT NAME
... Have students read different paragraphs from textbooks and summarize information in a group (even distribution of low and high level students)--have student write this information and vocabulary in their outline. Print out the worksheet on page () for each student, as well as making a lifesized char ...
... Have students read different paragraphs from textbooks and summarize information in a group (even distribution of low and high level students)--have student write this information and vocabulary in their outline. Print out the worksheet on page () for each student, as well as making a lifesized char ...
Planets in orbit around planetesimal belts? ββββββββ
... tend to scatter stellar radiation in forward directions and to stay near the orbit of their parent bodies (e.g., Kresák,1976; Bohren and Huffman, 1983). Polarimetric observations of the β Pic debris disk have revealed an effect of strong forward scattering that decreases the degree of linear polari ...
... tend to scatter stellar radiation in forward directions and to stay near the orbit of their parent bodies (e.g., Kresák,1976; Bohren and Huffman, 1983). Polarimetric observations of the β Pic debris disk have revealed an effect of strong forward scattering that decreases the degree of linear polari ...
View District Syllabus - Tarrant County College
... explaining the surface characteristics of the terrestrial planets; b. explaining the interior characteristics of the terrestrial planets; c. explaining the interior characteristics of the gas giant planets; d. explaining the evolutionary history of Venus and Mars; e. explaining cratering events in t ...
... explaining the surface characteristics of the terrestrial planets; b. explaining the interior characteristics of the terrestrial planets; c. explaining the interior characteristics of the gas giant planets; d. explaining the evolutionary history of Venus and Mars; e. explaining cratering events in t ...
Chap4-Timing
... Fate of planetary systems during the red giant phase. All planets within the final extent of the red giant envelope will be engulfed and migrate inwards. Planets further out will have greater chance of survival, migrating outwards as mass is lost from central star. In mass is loss instantane ...
... Fate of planetary systems during the red giant phase. All planets within the final extent of the red giant envelope will be engulfed and migrate inwards. Planets further out will have greater chance of survival, migrating outwards as mass is lost from central star. In mass is loss instantane ...
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 ...
Small Bodies in the Outer Solar System
... The Neptune Trojans are in a 1 : 1 resonance with Neptune which means they have similar semi-major axes as Neptune but lead or trail the planet by about 60 degrees. Scattered disk objects have very large eccentricities with perihelia near the orbit of Neptune (q ∼ 30 AU). The Scattered disk objects ...
... The Neptune Trojans are in a 1 : 1 resonance with Neptune which means they have similar semi-major axes as Neptune but lead or trail the planet by about 60 degrees. Scattered disk objects have very large eccentricities with perihelia near the orbit of Neptune (q ∼ 30 AU). The Scattered disk objects ...
From planetesimals to planetary systems: a hardles race
... Dust coagulation model PROs: Smooth grow of larger bodies Reliable collisional model Initial size distribution of any kind Robust (it does not depend much on initial parameters) It can overcome the 1-m catastrophe ...
... Dust coagulation model PROs: Smooth grow of larger bodies Reliable collisional model Initial size distribution of any kind Robust (it does not depend much on initial parameters) It can overcome the 1-m catastrophe ...
Here - TPS Publishing
... another planet in our solar system (or, for an Earth-like planet in another solar system!) The basic parameters of the project are laid out in the student text however, the assignment can be modified, to better suit individual classes and students. One area students are urged to address is “medical ...
... another planet in our solar system (or, for an Earth-like planet in another solar system!) The basic parameters of the project are laid out in the student text however, the assignment can be modified, to better suit individual classes and students. One area students are urged to address is “medical ...
Star Classification and its Connection to Exoplanets.
... the pie, so the viewer can see the result: G classified (sun-like) stars have the majority of the exoplanets, at 38%. The second pie chart uses data from the percentage of stars that have planets, so at around 6.6% of a total of around 18%, G stars make up about 37%, again the dominant planet host. ...
... the pie, so the viewer can see the result: G classified (sun-like) stars have the majority of the exoplanets, at 38%. The second pie chart uses data from the percentage of stars that have planets, so at around 6.6% of a total of around 18%, G stars make up about 37%, again the dominant planet host. ...
The outer solar system:
... use multiple gravity assists to reach all the outer planets. It reduces the time taken from 30 years (for a direct flight to Neptune) to 8–13 years using gravity assists. Launch windows were available between 1976 and 1980; both Voyager spacecraft were launched in 1977. ...
... use multiple gravity assists to reach all the outer planets. It reduces the time taken from 30 years (for a direct flight to Neptune) to 8–13 years using gravity assists. Launch windows were available between 1976 and 1980; both Voyager spacecraft were launched in 1977. ...
A Jupiter-mass companion to a solar-type star
... The presence of a Jupiter-mass companion to the star 51 Pegasi is inferred from observations of periodic variations in the star's radial velocity. The companion lies only about eight million kilometres from the star, which would be well inside the orbit of Mercury in our Solar System. This object mi ...
... The presence of a Jupiter-mass companion to the star 51 Pegasi is inferred from observations of periodic variations in the star's radial velocity. The companion lies only about eight million kilometres from the star, which would be well inside the orbit of Mercury in our Solar System. This object mi ...
Whipple: Exploring the Solar System Beyond Neptune Using a
... in an orbit with the perihelion too large to be significantly affected by Neptune, and with an aphelion distance too small to be perturbed by Galactic tidal forces and giant molecular clouds. Processes including only the known bodies in the Solar System do not place objects in orbits of this kind. T ...
... in an orbit with the perihelion too large to be significantly affected by Neptune, and with an aphelion distance too small to be perturbed by Galactic tidal forces and giant molecular clouds. Processes including only the known bodies in the Solar System do not place objects in orbits of this kind. T ...
Planets anD moons
... in doing, talking, reading, and writing about the science of planets and moons. About half of the sessions in the unit have a literacy focus. As students read the books, they work to master the reading comprehension skills of setting goals, visualizing, and synthesizing; they write scientific explan ...
... in doing, talking, reading, and writing about the science of planets and moons. About half of the sessions in the unit have a literacy focus. As students read the books, they work to master the reading comprehension skills of setting goals, visualizing, and synthesizing; they write scientific explan ...
There are countless suns and countless Earths all rotating around
... Our theory must explain the data 1. Large bodies in the Solar System have ...
... Our theory must explain the data 1. Large bodies in the Solar System have ...
Asteroids, Comets, and Dwarf Planets: Their Nature, Orbits, and
... Pluto and Eris • Pluto's size was overestimated after its discovery in 1930, and nothing of similar size was discovered for several decades. • Now other large objects have been discovered in Kuiper belt, including Eris. • The International Astronomical Union (IAU) now classifies Pluto and Eris as d ...
... Pluto and Eris • Pluto's size was overestimated after its discovery in 1930, and nothing of similar size was discovered for several decades. • Now other large objects have been discovered in Kuiper belt, including Eris. • The International Astronomical Union (IAU) now classifies Pluto and Eris as d ...
an all-sky extrasolar planet survey with multiple object, dispersed
... low-mass stars (∼0.3 solar mass). The discovery of many more planets than currently known is critical to fully understand planet formation, planet migration and evolution, the range of physical characteristics of extrasolar planets, and the relationship between planet formation and host star propert ...
... low-mass stars (∼0.3 solar mass). The discovery of many more planets than currently known is critical to fully understand planet formation, planet migration and evolution, the range of physical characteristics of extrasolar planets, and the relationship between planet formation and host star propert ...
The Anglo-Australian Planet Search – XXI. A Gas-Giant
... 8.5 m s−1 , which is substantially higher (by almost a factor of two) than would be expected based on measurement precision (the median value of the internal uncertainty produced by our iodine velocity fitting is 1.9 m s−1 ) and stellar jitter (3.0 m s−1 ). Preliminary analysis of these velocities i ...
... 8.5 m s−1 , which is substantially higher (by almost a factor of two) than would be expected based on measurement precision (the median value of the internal uncertainty produced by our iodine velocity fitting is 1.9 m s−1 ) and stellar jitter (3.0 m s−1 ). Preliminary analysis of these velocities i ...
Fomalhaut b
... main sequence star at 7.7 pc. • Fomalhaut b is between a Neptune and a Jupiter in mass. • Excellent system for detailed study the dynamics between planets and planetesimals. • The unusual brightness of Fomalhaut b at op)cal wavelengths indicates that we may be seeing circumplanetary dust rin ...
... main sequence star at 7.7 pc. • Fomalhaut b is between a Neptune and a Jupiter in mass. • Excellent system for detailed study the dynamics between planets and planetesimals. • The unusual brightness of Fomalhaut b at op)cal wavelengths indicates that we may be seeing circumplanetary dust rin ...
Million years - The Origin Of Life
... Mercury is in a 2:3 orbital resonance ratio with its orbit around the Sun. If we consider it to have fully locked then it is no evidence for recent creation. God could have created it that way 6,000 years ago. If it is not fully locked then it is evidence for much younger age framework than evolutio ...
... Mercury is in a 2:3 orbital resonance ratio with its orbit around the Sun. If we consider it to have fully locked then it is no evidence for recent creation. God could have created it that way 6,000 years ago. If it is not fully locked then it is evidence for much younger age framework than evolutio ...
Dwarf planet
A dwarf planet is a planetary-mass object that is neither a planet nor a natural satellite. That is, it is in direct orbit of the Sun, and is massive enough for its shape to be in hydrostatic equilibrium under its own gravity, but has not cleared the neighborhood around its orbit.The term dwarf planet was adopted in 2006 as part of a three-way categorization of bodies orbiting the Sun, brought about by an increase in discoveries of objects farther away from the Sun than Neptune that rivaled Pluto in size, and finally precipitated by the discovery of an even more massive object, Eris. The exclusion of dwarf planets from the roster of planets by the IAU has been both praised and criticized; it was said to be the ""right decision"" by astronomer Mike Brown, who discovered Eris and other new dwarf planets, but has been rejected by Alan Stern, who had coined the term dwarf planet in 1990.The International Astronomical Union (IAU) currently recognizes five dwarf planets: Ceres, Pluto, Haumea, Makemake, and Eris. Brown criticizes this official recognition: ""A reasonable person might think that this means that there are five known objects in the solar system which fit the IAU definition of dwarf planet, but this reasonable person would be nowhere close to correct.""It is suspected that another hundred or so known objects in the Solar System are dwarf planets. Estimates are that up to 200 dwarf planets may be found when the entire region known as the Kuiper belt is explored, and that the number may exceed 10,000 when objects scattered outside the Kuiper belt are considered. Individual astronomers recognize several of these, and in August 2011 Mike Brown published a list of 390 candidate objects, ranging from ""nearly certain"" to ""possible"" dwarf planets. Brown currently identifies eleven known objects – the five accepted by the IAU plus 2007 OR10, Quaoar, Sedna, Orcus, 2002 MS4 and Salacia – as ""virtually certain"", with another dozen highly likely. Stern states that there are more than a dozen known dwarf planets.However, only two of these bodies, Ceres and Pluto, have been observed in enough detail to demonstrate that they actually fit the IAU's definition. The IAU accepted Eris as a dwarf planet because it is more massive than Pluto. They subsequently decided that unnamed trans-Neptunian objects with an absolute magnitude brighter than +1 (and hence a diameter of ≥838 km assuming a geometric albedo of ≤1) are to be named under the assumption that they are dwarf planets. The only two such objects known at the time, Makemake and Haumea, went through this naming procedure and were declared to be dwarf planets. The question of whether other likely objects are dwarf planets has never been addressed by the IAU. The classification of bodies in other planetary systems with the characteristics of dwarf planets has not been addressed.