Effects of Mutual Transits by Extrasolar Planet
... assumes a hydrostatic equilibrium (nearly round) shape, and (c) has cleared the neighborhood around its orbit. We call a gravitationally bound system of two extrasolar planet-size objects simply as extrasolar binary planets. They constitute a true binary if the following conditions are satisfied in ...
... assumes a hydrostatic equilibrium (nearly round) shape, and (c) has cleared the neighborhood around its orbit. We call a gravitationally bound system of two extrasolar planet-size objects simply as extrasolar binary planets. They constitute a true binary if the following conditions are satisfied in ...
The most common habitable planets – atmospheric characterization
... & Ghezzi 2006) indicates a lower possibility of it harbouring large planets (Gonzalez 1998; Fisher & Valenti 2005). On the other hand, the extensive debris disc discovered (Greaves et al. 2004) indicates that it had the necessary material for rocky planet formation, and the lower metallicity may ind ...
... & Ghezzi 2006) indicates a lower possibility of it harbouring large planets (Gonzalez 1998; Fisher & Valenti 2005). On the other hand, the extensive debris disc discovered (Greaves et al. 2004) indicates that it had the necessary material for rocky planet formation, and the lower metallicity may ind ...
The Young Exoplanet Transit Initiative (YETI)
... with 1.5 Jupiter radii and periods between 1 and 10 days (Miller et al. 2008). With the ∼50 mmag rms precision down to R = 16.5 mag (5 mmag rms down to R = 14.5 mag, both for Jena), we can detect (young large) planets down to ∼1 Jupiter radius, given the typical radii and brightness of the YETI targ ...
... with 1.5 Jupiter radii and periods between 1 and 10 days (Miller et al. 2008). With the ∼50 mmag rms precision down to R = 16.5 mag (5 mmag rms down to R = 14.5 mag, both for Jena), we can detect (young large) planets down to ∼1 Jupiter radius, given the typical radii and brightness of the YETI targ ...
tremaine_stanford
... • initially circular orbits remain circular if and only if the initial inclination is < 39o = cos-1(3/5)1/2 • for larger initial inclinations the phase plane contains a separatrix • ! can either librate around ¼/2 or circulate • orbits undergo coupled oscillations in eccentricity and inclination (Ko ...
... • initially circular orbits remain circular if and only if the initial inclination is < 39o = cos-1(3/5)1/2 • for larger initial inclinations the phase plane contains a separatrix • ! can either librate around ¼/2 or circulate • orbits undergo coupled oscillations in eccentricity and inclination (Ko ...
The Cosmic Perspective Other Planetary Systems: The New Science
... *Image Credit: NASA, ESA, P. Kalas, J. Graham, E. Chiang, and E. Kite (University of California, Berkeley), M. Clampin (NASA Goddard Space Flight Center, Greenbelt, Md.), M. Fitzgerald (Lawrence Livermore National Laboratory, Livermore, Calif.), and K. Stapelfeldt and J. Krist (NASA Jet Propulsion L ...
... *Image Credit: NASA, ESA, P. Kalas, J. Graham, E. Chiang, and E. Kite (University of California, Berkeley), M. Clampin (NASA Goddard Space Flight Center, Greenbelt, Md.), M. Fitzgerald (Lawrence Livermore National Laboratory, Livermore, Calif.), and K. Stapelfeldt and J. Krist (NASA Jet Propulsion L ...
the heavens revealed - Chapin Library
... the study of the sun at total solar eclipses, cosmic deuterium and its relation to cosmology, and the atmosphere of Pluto, as well as the history and art of his discipline. He has written many books and articles, including A Field Guide to the Stars and Planets for the Peterson Field Guide Series; A ...
... the study of the sun at total solar eclipses, cosmic deuterium and its relation to cosmology, and the atmosphere of Pluto, as well as the history and art of his discipline. He has written many books and articles, including A Field Guide to the Stars and Planets for the Peterson Field Guide Series; A ...
6.2 Measuring the Planets
... Some were left with extremely eccentric orbits and appear in the inner solar system as comets. ...
... Some were left with extremely eccentric orbits and appear in the inner solar system as comets. ...
iaf2001_paper (doc - 1.8 MB)
... the presence of extra-solar planets when they transit. The detectors are 4 CCD 2048x2048 pixels with a field of view of 8°2. Half is dedicated to the extra-solar planets program. By adapting both the integration time and the focus conditions, but without any change in the mission sizing, luminous fl ...
... the presence of extra-solar planets when they transit. The detectors are 4 CCD 2048x2048 pixels with a field of view of 8°2. Half is dedicated to the extra-solar planets program. By adapting both the integration time and the focus conditions, but without any change in the mission sizing, luminous fl ...
Procedure - Matt Jorgensen E
... Nearpod presentation 3) If there is time at the end of the class period, go to Step 1, Day 2 Day 2 and Day 3 - Modeling Solar Systems Distances: 1) Divide class into 9 groups and assign one planet per group Distribute photographs of the planets (include analyzing Pluto but be sure to point out it is ...
... Nearpod presentation 3) If there is time at the end of the class period, go to Step 1, Day 2 Day 2 and Day 3 - Modeling Solar Systems Distances: 1) Divide class into 9 groups and assign one planet per group Distribute photographs of the planets (include analyzing Pluto but be sure to point out it is ...
Direct Imaging Detection of Planets
... contrast in an image of a star, allowing faint objects to be detected near the star. SEEDS (Strategic Exploration of Exoplanets and Disks with Subaru) used adaptive optics instrumentation on the Subaru telescope to carry out the first strategic, multi-year program on Subaru. Recently completed, it i ...
... contrast in an image of a star, allowing faint objects to be detected near the star. SEEDS (Strategic Exploration of Exoplanets and Disks with Subaru) used adaptive optics instrumentation on the Subaru telescope to carry out the first strategic, multi-year program on Subaru. Recently completed, it i ...
userfiles/602xxh/files/2013%e5%b1%8a%e9%ab%98%e4%b8%89
... 4.D 推理判断题。由最后一段中的“She’ll burst into tears when they see each other again” 推断D项正确。 5.B 细节理解题。根据最后一段“Lampard got Muffy as a gift for her now 17yearold daughter Chloe, and the two had been friendly with each other”可判断选B。 ...
... 4.D 推理判断题。由最后一段中的“She’ll burst into tears when they see each other again” 推断D项正确。 5.B 细节理解题。根据最后一段“Lampard got Muffy as a gift for her now 17yearold daughter Chloe, and the two had been friendly with each other”可判断选B。 ...
Exoplanets Properties of the host stars Characterization of the
... • Effective temperature – Most planets found in stars colder than the Sun Planet signal is stronger in stars of low mass (i.e., low effective temperature) However, low-mass stars tend to be excluded from surveys because of their faintness ...
... • Effective temperature – Most planets found in stars colder than the Sun Planet signal is stronger in stars of low mass (i.e., low effective temperature) However, low-mass stars tend to be excluded from surveys because of their faintness ...
Lecture8_v2 - Lick Observatory
... With thanks to Susan Cartwright Simulation by Geoff Bryden, JPL: Solar system and disk based on that observed around the star Gl 876 Page ...
... With thanks to Susan Cartwright Simulation by Geoff Bryden, JPL: Solar system and disk based on that observed around the star Gl 876 Page ...
The Parent Stars of New Extrasolar Planet System Candidates
... appear to possess unusual orbital characteristics when compared to those of our own solar system. For example, the planet 51 Peg b is a Jupiter-sized object, and yet it is so close to its parent star that it completes one orbital period every 4.2 days (Mayor & Queloz 1995). Several of the other plan ...
... appear to possess unusual orbital characteristics when compared to those of our own solar system. For example, the planet 51 Peg b is a Jupiter-sized object, and yet it is so close to its parent star that it completes one orbital period every 4.2 days (Mayor & Queloz 1995). Several of the other plan ...
Reconnaissance of the TRAPPIST-1 exoplanet system in the Lyman
... around the two inner planets. The measured variations are too large to be caused by the planetary disks (Llama & Shkolnik 2016) and would correspond to opaque exospheric disks extending up to approximately seven times the planets’ radii. We note that the putative exosphere of TRAPPIST-1c would absor ...
... around the two inner planets. The measured variations are too large to be caused by the planetary disks (Llama & Shkolnik 2016) and would correspond to opaque exospheric disks extending up to approximately seven times the planets’ radii. We note that the putative exosphere of TRAPPIST-1c would absor ...
Chapter 4 Practice Questions
... a) the orbits of the planets are nearly circular, and in the same plane. b) the direction that planets orbit the Sun is opposite to the Sun’s spin. c) the terrestrial planets have higher density and lower mass. d) comets do not necessarily orbit in the plane of the solar system. ...
... a) the orbits of the planets are nearly circular, and in the same plane. b) the direction that planets orbit the Sun is opposite to the Sun’s spin. c) the terrestrial planets have higher density and lower mass. d) comets do not necessarily orbit in the plane of the solar system. ...
WFIRST-2.4: What Every Astronomer Should Know
... observing program for a 5-year prime mission, which is summarized in Table 1 and detailed in subsequent sections. WFIRST-2.4 will support a wide range of science programs during its primary mission. Each of these programs has unique constraints involving the field of regard, cadence, and S/C roll an ...
... observing program for a 5-year prime mission, which is summarized in Table 1 and detailed in subsequent sections. WFIRST-2.4 will support a wide range of science programs during its primary mission. Each of these programs has unique constraints involving the field of regard, cadence, and S/C roll an ...
A rocky planet transiting a nearby low-mass star
... Inter-American Observatory (CTIO) in Chile, and observes a sample of M-dwarf stars that are within 33 parsecs of Earth and smaller than 0.35 Solar radii. Since early 2014, the telescopes have gathered data almost every night that weather has permitted, following a strategy similar to that of the MEa ...
... Inter-American Observatory (CTIO) in Chile, and observes a sample of M-dwarf stars that are within 33 parsecs of Earth and smaller than 0.35 Solar radii. Since early 2014, the telescopes have gathered data almost every night that weather has permitted, following a strategy similar to that of the MEa ...
Document
... explored the course and figures of the planets, the paths of comets, the tides of the sea, the dissimilarities in rays of light, and, what no other scholar has previously imagined, the properties of the colors thus produced. Diligent, sagacious and faithful, in his expositions of nature, antiquity a ...
... explored the course and figures of the planets, the paths of comets, the tides of the sea, the dissimilarities in rays of light, and, what no other scholar has previously imagined, the properties of the colors thus produced. Diligent, sagacious and faithful, in his expositions of nature, antiquity a ...
Copernicus
... • Copernicus was told by many scholars that he should make his new findings accessible to others by publishing it. • In 1543 the book called "On the revolutions of the heavenly bodies" was released. • Copernicus's book had a great impact that angered the Catholic and Protestant Church. • The Church ...
... • Copernicus was told by many scholars that he should make his new findings accessible to others by publishing it. • In 1543 the book called "On the revolutions of the heavenly bodies" was released. • Copernicus's book had a great impact that angered the Catholic and Protestant Church. • The Church ...
Advances in exoplanet science from Kepler (Lissauer et al. 2014)
... spaced orbits are quite common. This finding supports models of planet formation within a disk of material orbiting a star first developed by Immanuel Kant and Pierre-Simon Laplace. Because of Kepler’s success, NASA extended the operations of the spacecraft beyond the original baseline plan, but Kep ...
... spaced orbits are quite common. This finding supports models of planet formation within a disk of material orbiting a star first developed by Immanuel Kant and Pierre-Simon Laplace. Because of Kepler’s success, NASA extended the operations of the spacecraft beyond the original baseline plan, but Kep ...
Project Icarus: Astronomical Considerations Relating to the Choice
... multiple system is selected; (3)Planetary science studies of any planets in the target system, including moons and large asteroids of interest; (4)Astrobiological/exobiological studies of any habitable (or inhabited) planets or moons which may be found in the target planetary system. In order to hel ...
... multiple system is selected; (3)Planetary science studies of any planets in the target system, including moons and large asteroids of interest; (4)Astrobiological/exobiological studies of any habitable (or inhabited) planets or moons which may be found in the target planetary system. In order to hel ...
The Next Great Exoplanet Hunt Please share
... around a Sun-like star. For this reason, a meaningful transit survey must include tens of thousands of stars, or more. Because faint stars far outnumber bright ones in any given region of the sky, a practical strategy is to monitor a rich field of relatively faint stars. This is precisely what the K ...
... around a Sun-like star. For this reason, a meaningful transit survey must include tens of thousands of stars, or more. Because faint stars far outnumber bright ones in any given region of the sky, a practical strategy is to monitor a rich field of relatively faint stars. This is precisely what the K ...
Using the Radial Velocity to Search for Orbiting Planets Around Mira
... from Mira that is referred to as a maser. The raw maser data were analyzed to become the velocity centroid data needed for the rest of this research project. The data originated when the maser emissions of Mira were recorded in about one hour intervals. Let it be noted that in order for these masers ...
... from Mira that is referred to as a maser. The raw maser data were analyzed to become the velocity centroid data needed for the rest of this research project. The data originated when the maser emissions of Mira were recorded in about one hour intervals. Let it be noted that in order for these masers ...
Kepler (spacecraft)
Kepler is a space observatory launched by NASA to discover Earth-like planets orbiting other stars. The spacecraft, named after the German Renaissance astronomer Johannes Kepler, was launched on March 7, 2009.Designed to survey a portion of our region of the Milky Way to discover dozens of Earth-size extrasolar planets in or near the habitable zone and estimate how many of the billions of stars in the Milky Way have such planets, Kepler's sole instrument is a photometer that continually monitors the brightness of over 145,000 main sequence stars in a fixed field of view. This data is transmitted to Earth, then analyzed to detect periodic dimming caused by extrasolar planets that cross in front of their host star.Kepler is part of NASA's Discovery Program of relatively low-cost, focused primary science missions. The telescope's construction and initial operation were managed by NASA's Jet Propulsion Laboratory, with Ball Aerospace responsible for developing the Kepler flight system. The Ames Research Center is responsible for the ground system development, mission operations since December 2009, and scientific data analysis. The initial planned lifetime was 3.5 years, but greater-than-expected noise in the data, from both the stars and the spacecraft, meant additional time was needed to fulfill all mission goals. Initially, in 2012, the mission was expected to last until 2016, but this would only have been possible if all remaining reaction wheels used for pointing the spacecraft remained reliable. On May 11, 2013, a second of four reaction wheels failed, disabling the collection of science data and threatening the continuation of the mission.On August 15, 2013, NASA announced that they had given up trying to fix the two failed reaction wheels. This meant the current mission needed to be modified, but it did not necessarily mean the end of planet-hunting. NASA had asked the space science community to propose alternative mission plans ""potentially including an exoplanet search, using the remaining two good reaction wheels and thrusters"". On November 18, 2013, the K2 ""Second Light"" proposal was reported. This would include utilizing the disabled Kepler in a way that could detect habitable planets around smaller, dimmer red dwarfs. On May 16, 2014, NASA announced the approval of the K2 extension.As of January 2015, Kepler and its follow-up observations had found 1,013 confirmed exoplanets in about 440 stellar systems, along with a further 3,199 unconfirmed planet candidates. Four planets have been confirmed through Kepler 's K2 mission. In November 2013, astronomers reported, based on Kepler space mission data, that there could be as many as 40 billion Earth-sized planets orbiting in the habitable zones of Sun-like stars and red dwarfs within the Milky Way. It is estimated that 11 billion of these planets may be orbiting Sun-like stars. The nearest such planet may be 3.7 parsecs (12 ly) away, according to the scientists.On January 6, 2015, NASA announced the 1000th confirmed exoplanet discovered by the Kepler Space Telescope. Four of the newly confirmed exoplanets were found to orbit within habitable zones of their related stars: three of the four, Kepler-438b, Kepler-442b and Kepler-452b, are near-Earth-size and likely rocky; the fourth, Kepler-440b, is a super-Earth.