TOPS: Toward Other Planetary
... more or less contemporaneously through a sequence of related and almost deterministic events, as the interior of a spinning interstellar cloud collapses under the influence of its own gravity. The spin of the collapsing matter forces some of the material to whirl about the center in a thin, disk-sha ...
... more or less contemporaneously through a sequence of related and almost deterministic events, as the interior of a spinning interstellar cloud collapses under the influence of its own gravity. The spin of the collapsing matter forces some of the material to whirl about the center in a thin, disk-sha ...
Astronomical Circumstances
... This DRAFT document is an excerpt from Principles of Planetary Biology, by Tom E. Morris. based on their brightness (magnitude), temperature, receive each moment, so the warmer the planet will get radius, luminosity, mix of colors (spectral class), and (all other things being equal). This being the ...
... This DRAFT document is an excerpt from Principles of Planetary Biology, by Tom E. Morris. based on their brightness (magnitude), temperature, receive each moment, so the warmer the planet will get radius, luminosity, mix of colors (spectral class), and (all other things being equal). This being the ...
Full Program with Abstracts - CIERA
... that terrestrial-sized planets are more common than larger planets within 1 AU, and that the nearest, potentially habitable earth-sized planet is likely within 5pc. After four years of continuous observations, the Kepler prime mission ended in May 2013 with the loss of a second reaction wheel. Thank ...
... that terrestrial-sized planets are more common than larger planets within 1 AU, and that the nearest, potentially habitable earth-sized planet is likely within 5pc. After four years of continuous observations, the Kepler prime mission ended in May 2013 with the loss of a second reaction wheel. Thank ...
3. What are the intrinsic and extrinsic environments of exoplanets?
... below the detection threshold for direct imaging for at least a decade, although they should be detected in both radial velocity and transit surveys (the Kepler mission); gas giants, however, are potentially accessible to direct imaging, while their atmospheric properties are already being measured ...
... below the detection threshold for direct imaging for at least a decade, although they should be detected in both radial velocity and transit surveys (the Kepler mission); gas giants, however, are potentially accessible to direct imaging, while their atmospheric properties are already being measured ...
Analysis of Stellar Activity and Orbital Dynamics in Extrasolar
... The area of exoplanet research, which emerged less than two decades ago, was revolutionized with the advent of space-based photometers like CoRoT and Kepler. These observatories provide long-term monitoring of thousands of stars with unprecendented accuracy and high time resolution to detect transit ...
... The area of exoplanet research, which emerged less than two decades ago, was revolutionized with the advent of space-based photometers like CoRoT and Kepler. These observatories provide long-term monitoring of thousands of stars with unprecendented accuracy and high time resolution to detect transit ...
Behaviour of elements from lithium to europium in stars with and
... range of stellar parameters of 14 stars that host planets (Exoplanets.eu data base; Schneider et al. 2011) from our data base. Table 1 lists the main characteristics of the planet-hosting stars and planets (with their masses in units of the mass of Jupiter (MJ )). Here, we make a few comments regard ...
... range of stellar parameters of 14 stars that host planets (Exoplanets.eu data base; Schneider et al. 2011) from our data base. Table 1 lists the main characteristics of the planet-hosting stars and planets (with their masses in units of the mass of Jupiter (MJ )). Here, we make a few comments regard ...
OBSERVATIONS OF DISINTEGRATING, EVAPORATING AND HOT
... dispersion direction and use it to optimally sum the pixels’ counts (described in section 1.3.2). Also, spectra are obtained simultaneously with the same instrument and telescope, which makes direct comparison of the transit depth at one wavelength to another much more straightforward and less susce ...
... dispersion direction and use it to optimally sum the pixels’ counts (described in section 1.3.2). Also, spectra are obtained simultaneously with the same instrument and telescope, which makes direct comparison of the transit depth at one wavelength to another much more straightforward and less susce ...
Super-Earth and Sub-Neptune Exoplanets: a First Look from the
... et al. 1989; Wolszczan & Frail 1992; Mayor & Queloz 1995). Results from the NASA Kepler satellite indicate that main-sequence stars on average host, at a minimum, about one planet per star (Fressin et al. 2013; Dressing & Charbonneau 2013). For the first time in human history, we have incontrovertib ...
... et al. 1989; Wolszczan & Frail 1992; Mayor & Queloz 1995). Results from the NASA Kepler satellite indicate that main-sequence stars on average host, at a minimum, about one planet per star (Fressin et al. 2013; Dressing & Charbonneau 2013). For the first time in human history, we have incontrovertib ...
Conference Abstract Booklet here.
... The Large Synoptic Survey Telescope (LSST) will be a large (6.7m effective aperture), wide-field (9.6 sq.deg. field-of-view) ground-based system designed to obtain deep photometric data in six broad bands (ugrizy, 320-1050 nm). Each sky position will be observed multiple times, with several hundred ...
... The Large Synoptic Survey Telescope (LSST) will be a large (6.7m effective aperture), wide-field (9.6 sq.deg. field-of-view) ground-based system designed to obtain deep photometric data in six broad bands (ugrizy, 320-1050 nm). Each sky position will be observed multiple times, with several hundred ...
Tycho Brahe
... diameter globe where he would accurately fix the positions of all the stars from his observations. • 1000 stars ...
... diameter globe where he would accurately fix the positions of all the stars from his observations. • 1000 stars ...
Eclipses Old Dead Guys Part I Astronomy 1 — Elementary Astronomy
... Models were generally wrong because they were based on philosophical “first principles”, believed to be “obvious” and not questioned ...
... Models were generally wrong because they were based on philosophical “first principles”, believed to be “obvious” and not questioned ...
Life Beyond Earth Exhibition
... Participant does not touch "announce your discovery" button and therefore never finds exoplanets. She moves the view over stars, but did not seem to realize that she was supposed to push the button to see if there was an exoplanet. Participant uses multiple methods, including the astrometry method. ...
... Participant does not touch "announce your discovery" button and therefore never finds exoplanets. She moves the view over stars, but did not seem to realize that she was supposed to push the button to see if there was an exoplanet. Participant uses multiple methods, including the astrometry method. ...
Other Planetary Systems
... Now let’s add in the effects of Saturn, which exerts the second greatest gravitational tug on the Sun. Saturn takes 29.5 years to orbit the Sun, so by itself it would cause the Sun to orbit their mutual center of mass every 29.5 years. However, because Saturn’s influence is secondary to that of Jupi ...
... Now let’s add in the effects of Saturn, which exerts the second greatest gravitational tug on the Sun. Saturn takes 29.5 years to orbit the Sun, so by itself it would cause the Sun to orbit their mutual center of mass every 29.5 years. However, because Saturn’s influence is secondary to that of Jupi ...
Rotation Periods of Wide Binaries in the Kepler Field
... of their rotation periods is a test of the gyrochronology concept. To find their periods I calculated the autocorrelation function of the Kepler mission photometry for each star. In most systems for which good periods can be found, the cooler star has a longer period than the hotter component in gen ...
... of their rotation periods is a test of the gyrochronology concept. To find their periods I calculated the autocorrelation function of the Kepler mission photometry for each star. In most systems for which good periods can be found, the cooler star has a longer period than the hotter component in gen ...
Tycho Brahe
... Undoubtedly Danish astronomer Tycho Brahe (December 14, 1546 –October 24, 1601) was the greatest astronomical observer of the pre-telescopic era. He made a remarkable star catalogue of over 1000 stars, far more than any astronomer before him. If he is less honored than his assistant Johannes Kepler, ...
... Undoubtedly Danish astronomer Tycho Brahe (December 14, 1546 –October 24, 1601) was the greatest astronomical observer of the pre-telescopic era. He made a remarkable star catalogue of over 1000 stars, far more than any astronomer before him. If he is less honored than his assistant Johannes Kepler, ...
Radial Velocity - Yale Exoplanet
... bital parameters. Table 2.1 lists a few typical examples for planets with different masses and semi-major axes orbiting spacetime, giving rise to the so-called gravitational redshift, a solar-mass star. As one can see, the search for exoplan- has to be taken into account in the derivation of the Dop ...
... bital parameters. Table 2.1 lists a few typical examples for planets with different masses and semi-major axes orbiting spacetime, giving rise to the so-called gravitational redshift, a solar-mass star. As one can see, the search for exoplan- has to be taken into account in the derivation of the Dop ...
Thinking Outside the Sphere
... Epytoma in Almagestu Ptolemei. Venice: Landoia, 1496. The second century astronomer, Claudius Ptolemy, revolutionized astronomy by transforming the concentric spheres model into a highly effective tool for predicting the motions of the planets. His epic mathematical achievement was simply called the ...
... Epytoma in Almagestu Ptolemei. Venice: Landoia, 1496. The second century astronomer, Claudius Ptolemy, revolutionized astronomy by transforming the concentric spheres model into a highly effective tool for predicting the motions of the planets. His epic mathematical achievement was simply called the ...
How we think the planets were born
... The Geminids can be annually observed in the first half of December, with its peak activity being around December 14. The shower owes its name to the constellation Gemini from where the meteors appear to emerge from in the sky (the so-called “radiant”). Unlike most other meteor showers, the Geminids ...
... The Geminids can be annually observed in the first half of December, with its peak activity being around December 14. The shower owes its name to the constellation Gemini from where the meteors appear to emerge from in the sky (the so-called “radiant”). Unlike most other meteor showers, the Geminids ...
A Reappraisal of The Habitability of Planets around M Dwarf Stars
... lengths nearly a century ago. It was later understood that the observable spectral features provide information about stellar surface temperatures and mass, but by then the classification alphabet was well established, requiring the ordering OBAFGKML from the hottest most massive star to the coolest ...
... lengths nearly a century ago. It was later understood that the observable spectral features provide information about stellar surface temperatures and mass, but by then the classification alphabet was well established, requiring the ordering OBAFGKML from the hottest most massive star to the coolest ...
A re-appraisal of the habitability of planets around M dwarf
... lengths nearly a century ago. It was later understood that the observable spectral features provide information about stellar surface temperatures and mass, but by then the classification alphabet was well established, requiring the ordering OBAFGKML from the hottest most massive star to the coolest ...
... lengths nearly a century ago. It was later understood that the observable spectral features provide information about stellar surface temperatures and mass, but by then the classification alphabet was well established, requiring the ordering OBAFGKML from the hottest most massive star to the coolest ...
Introduction
... There are several methods that have successfully detected exoplanets, and several other proposed methods which have not yet detected an exoplanet. Perryman (2000) and Lunine et al. (2008) review the different techniques and their performance and limitations. In this thesis, I focus on the science and ...
... There are several methods that have successfully detected exoplanets, and several other proposed methods which have not yet detected an exoplanet. Perryman (2000) and Lunine et al. (2008) review the different techniques and their performance and limitations. In this thesis, I focus on the science and ...
Superstars of Astronomy: Debra Fischer transcript
... So the scope of things was almost dizzying and, as I said, unsettling to me. Then I remember the second punch was when I ordered copies of the Palomar Observatory Sky Survey from the Caltech bookstore. They came in three flavors. Each picture was the same part of the sky, but one was taken with a re ...
... So the scope of things was almost dizzying and, as I said, unsettling to me. Then I remember the second punch was when I ordered copies of the Palomar Observatory Sky Survey from the Caltech bookstore. They came in three flavors. Each picture was the same part of the sky, but one was taken with a re ...
Circumstellar Disks: IRAS to ALMA (by way of HST) Dr. Karl Stapelfeldt
... Wide Field Infrared Survey Explorer • Mission similar to IRAS but with modern array detectors • Sensitivity ~100 times better and resolution 10x better than IRAS • 40 cm telescope, low Earth orbit • All-sky survey at 3.6, 4.5, 12, and 22 m • Launched late 2009, operated in all 4 bands to fall 2010 ...
... Wide Field Infrared Survey Explorer • Mission similar to IRAS but with modern array detectors • Sensitivity ~100 times better and resolution 10x better than IRAS • 40 cm telescope, low Earth orbit • All-sky survey at 3.6, 4.5, 12, and 22 m • Launched late 2009, operated in all 4 bands to fall 2010 ...
targets - siamois
... Scientific objectives require the observation of a few bright targets for convergence of very precise measurements observed with a small collector ...
... Scientific objectives require the observation of a few bright targets for convergence of very precise measurements observed with a small collector ...
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.