A Detailed Derivation of the Radial Velocity Equation
... Of the over 300 extrasolar planets discovered to date, the vast majority have been found using the RADIAL VELOCITY METHOD (also known as DOPPLER SPECTROSCOPY or the DOPPLER METHOD). The purpose of this paper is to derive the theoretical equation that is asso ...
... Of the over 300 extrasolar planets discovered to date, the vast majority have been found using the RADIAL VELOCITY METHOD (also known as DOPPLER SPECTROSCOPY or the DOPPLER METHOD). The purpose of this paper is to derive the theoretical equation that is asso ...
Planet Formation: Disk Formation and Evolution
... cloud rotation is enormously magnified, which results in the small central protostar being surrounding by a large rotating disk. It is in these disks that planets form. ...
... cloud rotation is enormously magnified, which results in the small central protostar being surrounding by a large rotating disk. It is in these disks that planets form. ...
Comets
... Prior to the early 20th century, most comets were simply referred to by the year in which they appeared, sometimes with additional adjectives for particularly bright comets. For example, the “Great Comet of 1680” (Comet Kirch) or the “Great September Comet of 1882”. In the early 20th century, the co ...
... Prior to the early 20th century, most comets were simply referred to by the year in which they appeared, sometimes with additional adjectives for particularly bright comets. For example, the “Great Comet of 1680” (Comet Kirch) or the “Great September Comet of 1882”. In the early 20th century, the co ...
arXiv:1502.03605v2 [astro-ph.EP] 24 Apr 2015
... 1969) considered only homogeneous and simple monoatomic bulk compositions (H, He, C, Fe, Mg, and H/He mixtures). More recent studies assume differentiated terrestrial-like compositions (e.g., Valencia et al. 2006; Sotin et al. 2007; Seager et al. 2007; Fortney et al. 2007). Based on solar system obs ...
... 1969) considered only homogeneous and simple monoatomic bulk compositions (H, He, C, Fe, Mg, and H/He mixtures). More recent studies assume differentiated terrestrial-like compositions (e.g., Valencia et al. 2006; Sotin et al. 2007; Seager et al. 2007; Fortney et al. 2007). Based on solar system obs ...
Abiotic formation of O2 and O3 in high
... eliminate reaction with reduced volcanic gases (primarily H2 ) as an oxygen sink. The martian atmosphere contains 0.1% O2 and would likely have even more if the planet were slightly larger so that it did not lose oxygen to space by nonthermal loss mechanisms (McElroy and Donahue ...
... eliminate reaction with reduced volcanic gases (primarily H2 ) as an oxygen sink. The martian atmosphere contains 0.1% O2 and would likely have even more if the planet were slightly larger so that it did not lose oxygen to space by nonthermal loss mechanisms (McElroy and Donahue ...
Relativistic stellar aberration for the Space Interferometry Mission
... correct treatment of the dynamics of the extended celestial bodies. As a result, some of the leading static-field post-Newtonian perturbations in the dynamics of the planets, the Moon and artificial satellites have been included in the equations of motion, and in time and position transformation. Du ...
... correct treatment of the dynamics of the extended celestial bodies. As a result, some of the leading static-field post-Newtonian perturbations in the dynamics of the planets, the Moon and artificial satellites have been included in the equations of motion, and in time and position transformation. Du ...
Life on Other Worlds
... like to excite curiosity; for what can more concern us, than to know how this world which we inhabit, is made; and whether there be any other worlds like it, which are also inhabited as this is? They who have any thoughts to lose, may throw them away upon such subjects as this; but I suppose they wh ...
... like to excite curiosity; for what can more concern us, than to know how this world which we inhabit, is made; and whether there be any other worlds like it, which are also inhabited as this is? They who have any thoughts to lose, may throw them away upon such subjects as this; but I suppose they wh ...
Astro Review - Parkway C-2
... 15. ____________________ placed the sun at the center of the universe; however, he mistakenly used ____________________ to represent the shape of the planets’ orbits. 16. A very slow motion of Earth’s axis that requires 26,000 years to complete is called ____________________. 17. According to the gi ...
... 15. ____________________ placed the sun at the center of the universe; however, he mistakenly used ____________________ to represent the shape of the planets’ orbits. 16. A very slow motion of Earth’s axis that requires 26,000 years to complete is called ____________________. 17. According to the gi ...
A Cantorian Superfluid Vortex and the Quantization of Planetary
... This fractal dimension will be called the Cantorian-Minkowski dimension. This conjecture is somewhat in accordance with a recent suggestion made by Kobelev (2001) that Newton equation is a diffusion equation of multifractal universe. In the mean time, despite the fact that most theoretical physics e ...
... This fractal dimension will be called the Cantorian-Minkowski dimension. This conjecture is somewhat in accordance with a recent suggestion made by Kobelev (2001) that Newton equation is a diffusion equation of multifractal universe. In the mean time, despite the fact that most theoretical physics e ...
Preview Sample 1
... 26. Several other objects (Juno, Vesta, Pallas etc.) were found within a few years of the discovery of Ceres and all had orbital distances near 2.8 AU. Futhermore, the objects were all much smaller than other planets, or even our own Moon. How might you have reacted as an astronomer of that time? a. ...
... 26. Several other objects (Juno, Vesta, Pallas etc.) were found within a few years of the discovery of Ceres and all had orbital distances near 2.8 AU. Futhermore, the objects were all much smaller than other planets, or even our own Moon. How might you have reacted as an astronomer of that time? a. ...
Physics 1114OL - Normandale Community College
... Recommended: Depending on where you purchased your textbook, there may be a copy of Starry Night packaged with Universe. (Used books may not have the software intact and the college bookstore is not responsible for missing software in used books.) Starry Night is an excellent program and I encourage ...
... Recommended: Depending on where you purchased your textbook, there may be a copy of Starry Night packaged with Universe. (Used books may not have the software intact and the college bookstore is not responsible for missing software in used books.) Starry Night is an excellent program and I encourage ...
How we found about COMETS
... Polish astronomer, Nicholas Copernicus, showed that it made more sense to look at things in another way. He said that only the Moon moved in a circle around the Earth. The Earth itself moved in a circle around the Sun. All tire other planets also moved in circles around the Sun. If astronomers accep ...
... Polish astronomer, Nicholas Copernicus, showed that it made more sense to look at things in another way. He said that only the Moon moved in a circle around the Earth. The Earth itself moved in a circle around the Sun. All tire other planets also moved in circles around the Sun. If astronomers accep ...
Photometry`s bright future: Detecting Solar System analogues with
... Our sun’s noise varies by a factor of ∼2 during the 11year solar cycle, from 7.8ppm (2007.77, quiet period) in 6.5hrs bins to 14.7ppm (2002.39, active period) (Gilliland et al. 2011; Fröhlich et al. 1997). This is at the quiet side of G-type stars, of which the most quiet 1% have 6ppm, with a total ...
... Our sun’s noise varies by a factor of ∼2 during the 11year solar cycle, from 7.8ppm (2007.77, quiet period) in 6.5hrs bins to 14.7ppm (2002.39, active period) (Gilliland et al. 2011; Fröhlich et al. 1997). This is at the quiet side of G-type stars, of which the most quiet 1% have 6ppm, with a total ...
gerard peter kuiper - National Academy of Sciences
... assembling astronomers, meteorologists, and other specialists for the first meeting of its kind. An important outcome was the book edited by Kuiper, The Atmospheres of the Earth and Planets (Chicago: University of Chicago Press, 1949 and 1952). In his own classic paper, Kuiper summarized knowledge o ...
... assembling astronomers, meteorologists, and other specialists for the first meeting of its kind. An important outcome was the book edited by Kuiper, The Atmospheres of the Earth and Planets (Chicago: University of Chicago Press, 1949 and 1952). In his own classic paper, Kuiper summarized knowledge o ...
Dawes Review. The tidal downsizing hypothesis of planet formation
... not accrete more gas in this picture. They may actually loose most of their primordial gas if tidal forces from the host stars are stronger than self-gravity of the clumps. However, before the clumps are destroyed, solid planetary cores are formed inside them when grains grow and sediment to the cen ...
... not accrete more gas in this picture. They may actually loose most of their primordial gas if tidal forces from the host stars are stronger than self-gravity of the clumps. However, before the clumps are destroyed, solid planetary cores are formed inside them when grains grow and sediment to the cen ...
Venus The surface of Venus was scanned with radar waves beamed
... Venus days later, another Soviet space vehicle, Venera 10, reached Venus. It photographed Venus's surface, measured its atmospheric pressure, and determined the composition of rocks on its surface. Four unmanned spacecraft reached Venus in December 1978. The United States craft Pioneer Venus 1 bega ...
... Venus days later, another Soviet space vehicle, Venera 10, reached Venus. It photographed Venus's surface, measured its atmospheric pressure, and determined the composition of rocks on its surface. Four unmanned spacecraft reached Venus in December 1978. The United States craft Pioneer Venus 1 bega ...
Page 1 - Sciss
... California Academy of Sciences, San Francisco, and GOTO INC, Tokyo, Japan. Produced by: American Museum of Natural History Suitable for: General audiences Languages: English, French, German, Italian, Japanese, Mandarin, Spanish Release date: 2013 Running time: 25:15 minutes Webpage ...
... California Academy of Sciences, San Francisco, and GOTO INC, Tokyo, Japan. Produced by: American Museum of Natural History Suitable for: General audiences Languages: English, French, German, Italian, Japanese, Mandarin, Spanish Release date: 2013 Running time: 25:15 minutes Webpage ...
A new algorithm for fitting orbits of multiple
... We set our detection threshold at the 99% confidence level, so that random noise could produce a comparable signal only 1% of the time. We say that the FAP (false alarm probability) for this threshold is 1%. For a given data set, the 1% FAP threshold will depend on the trial frequencies used in the ...
... We set our detection threshold at the 99% confidence level, so that random noise could produce a comparable signal only 1% of the time. We say that the FAP (false alarm probability) for this threshold is 1%. For a given data set, the 1% FAP threshold will depend on the trial frequencies used in the ...
pdf - at www.arxiv.org.
... 2012). Although the “precise” classification of a prolonged minimum as a GM event is very important, this minimum has conspicuous properties for which it has been called “exceptional” (e.g., Gibson et al., 2009) and it is important by itself. These properties must also be discussed with other genera ...
... 2012). Although the “precise” classification of a prolonged minimum as a GM event is very important, this minimum has conspicuous properties for which it has been called “exceptional” (e.g., Gibson et al., 2009) and it is important by itself. These properties must also be discussed with other genera ...
Super-Earth and Sub-Neptune Exoplanets: a First Look from the
... outward from the edge of our homey little planet. Telescope domes at my back, I have watched the Sun glow red as it approached secz = ∞ and finally set below the horizon. From Mount Hopkins, I have seen the shadows of flowering ocotillo plants (Fouquieria splendens) grow long against the desert. Fro ...
... outward from the edge of our homey little planet. Telescope domes at my back, I have watched the Sun glow red as it approached secz = ∞ and finally set below the horizon. From Mount Hopkins, I have seen the shadows of flowering ocotillo plants (Fouquieria splendens) grow long against the desert. Fro ...
Lightning climatology of exoplanets and brown dwarfs guided by
... are suggested for which we use the lightning occurrence information from the Solar system. We examine lightning energy distributions for Earth, Jupiter and Saturn. We discuss how strong stellar activity may support lightning activity. We provide a lower limit of the total number of flashes that migh ...
... are suggested for which we use the lightning occurrence information from the Solar system. We examine lightning energy distributions for Earth, Jupiter and Saturn. We discuss how strong stellar activity may support lightning activity. We provide a lower limit of the total number of flashes that migh ...
The Voyager pictures show four additional faint rings. Saturn`s rings
... The Dragon Storm was a powerful source of radio emissions during July and September of 2004. The radio waves from the storm resemble the short bursts of static generated by lightning on Earth. Cassini detected the bursts only when the storm was rising over the horizon on the night side of the plane ...
... The Dragon Storm was a powerful source of radio emissions during July and September of 2004. The radio waves from the storm resemble the short bursts of static generated by lightning on Earth. Cassini detected the bursts only when the storm was rising over the horizon on the night side of the plane ...
Disk planet interaction during the formation of extrasolar planets
... the densest parts of this cloud and O and B stars forms and starts sequential star formation. Most stars within an open cluster forms almost simultaneously but if a very massive star, O or B type, were formed and went through it’s entire lifecycle and became a supernova before the less massive proto ...
... the densest parts of this cloud and O and B stars forms and starts sequential star formation. Most stars within an open cluster forms almost simultaneously but if a very massive star, O or B type, were formed and went through it’s entire lifecycle and became a supernova before the less massive proto ...
Evidence for the Tidal Destruction of Hot Jupiters by Subgiant Stars
... Tidal transfer of angular momentum is expected to cause hot Jupiters to spiral into their host stars. Although the timescale for orbital decay is very uncertain, it should be faster for systems with larger and more evolved stars. Indeed, it is well established that hot Jupiters are found less freque ...
... Tidal transfer of angular momentum is expected to cause hot Jupiters to spiral into their host stars. Although the timescale for orbital decay is very uncertain, it should be faster for systems with larger and more evolved stars. Indeed, it is well established that hot Jupiters are found less freque ...
W. M. White Geochemistry Chapter 10: Cosmochemistry
... M81 falls by an order of magnitude with distance from the center. Finally, one sees a systematic decrease in the Fe/H ratio of white dwarfs (the remnants of small to medium size stars) with increasing age. On the other hand, old stars seem to have about the same He/H ratio as young stars. Indeed 4He ...
... M81 falls by an order of magnitude with distance from the center. Finally, one sees a systematic decrease in the Fe/H ratio of white dwarfs (the remnants of small to medium size stars) with increasing age. On the other hand, old stars seem to have about the same He/H ratio as young stars. Indeed 4He ...
IAU definition of planet
The definition of planet set in Prague in 2006 by the International Astronomical Union (IAU) states that, in the Solar System, a planet is a celestial body which: is in orbit around the Sun, has sufficient mass to assume hydrostatic equilibrium (a nearly round shape), and has ""cleared the neighborhood"" around its orbit.A non-satellite body fulfilling only the first two of these criteria is classified as a ""dwarf planet"". According to the IAU, ""planets and dwarf planets are two distinct classes of objects"". A non-satellite body fulfilling only the first criterion is termed a ""small Solar System body"" (SSSB). Initial drafts planned to include dwarf planets as a subcategory of planets, but because this could potentially have led to the addition of several dozens of planets into the Solar System, this draft was eventually dropped. The definition was a controversial one and has drawn both support and criticism from different astronomers, but has remained in use.According to this definition, there are eight planets in the Solar System. The definition distinguishes planets from smaller bodies and is not useful outside the Solar System, where smaller bodies cannot be found yet. Extrasolar planets, or exoplanets, are covered separately under a complementary 2003 draft guideline for the definition of planets, which distinguishes them from dwarf stars, which are larger.