The Search for Exoplanets - Worcester Polytechnic Institute
... of reflected sunlight, and several new theories regarding the motions of the planets. Due to the destruction of the Sassanid Persian state at the hands of the Arabs in the 630s, it is likely that the much praised astronomical knowledge of the Arab world had its beginnings from this golden age of In ...
... of reflected sunlight, and several new theories regarding the motions of the planets. Due to the destruction of the Sassanid Persian state at the hands of the Arabs in the 630s, it is likely that the much praised astronomical knowledge of the Arab world had its beginnings from this golden age of In ...
SEEDS
... PI: M. Tamura (NAOJ, Extrasolar Planet Detection Project Office) Co-PIs: T. Usuda (NAOJ, Subaru) & H. Takami (NAOJ, Subaru) ...
... PI: M. Tamura (NAOJ, Extrasolar Planet Detection Project Office) Co-PIs: T. Usuda (NAOJ, Subaru) & H. Takami (NAOJ, Subaru) ...
Free floating planets
... flux, will provide insight into the fundamentals of planetary formation, migration, and evolution. The transit method of planet detection is biased toward finding planets that orbit relatively close to their parent stars. This means that radial velocity follow-up will be possible for some planets as ...
... flux, will provide insight into the fundamentals of planetary formation, migration, and evolution. The transit method of planet detection is biased toward finding planets that orbit relatively close to their parent stars. This means that radial velocity follow-up will be possible for some planets as ...
Volume 2 - Euresis Journal
... The first planets discovered were, naturally, those that are easiest to find – massive objects like Jupiter. However, the big surprise was that these planets were orbiting their stars at tiny separations, smaller than Mercury’s orbit in the solar system, and hence with orbital periods of only a few ...
... The first planets discovered were, naturally, those that are easiest to find – massive objects like Jupiter. However, the big surprise was that these planets were orbiting their stars at tiny separations, smaller than Mercury’s orbit in the solar system, and hence with orbital periods of only a few ...
Astronomy Today 7th Edition Chaisson/McMillan
... Icy planetesimals far from the Sun were ejected into distant orbits by gravitational interaction with the jovian planets, into the Kuiper belt and the Oort cloud. Some were left with extremely eccentric orbits and appear in the inner solar system as comets. ...
... Icy planetesimals far from the Sun were ejected into distant orbits by gravitational interaction with the jovian planets, into the Kuiper belt and the Oort cloud. Some were left with extremely eccentric orbits and appear in the inner solar system as comets. ...
Planets Around M-dwarfs – Astrometric Detection and Orbit
... 2006). We assume a fixed-cadence, fixed-targetlist survey. More complex survey types (see eg. Ford 2005) will improve performance. Targeting 800 late M-dwarfs allows detection of Neptune-mass planets in 10-year orbits and Jupiter-mass planets at all accessible periods (limited by the cadence of the ...
... 2006). We assume a fixed-cadence, fixed-targetlist survey. More complex survey types (see eg. Ford 2005) will improve performance. Targeting 800 late M-dwarfs allows detection of Neptune-mass planets in 10-year orbits and Jupiter-mass planets at all accessible periods (limited by the cadence of the ...
Improving the Gaia planet catch by combining the astrometry with
... Astrometry is more sensitive to planets with large periods, in contrast with radial velocities (RV) methods which are more efficient to detect planets with short periods, and deliver only a minimum mass as orbital inclinations cannot be measured. The idea of this study was to combine measurements fr ...
... Astrometry is more sensitive to planets with large periods, in contrast with radial velocities (RV) methods which are more efficient to detect planets with short periods, and deliver only a minimum mass as orbital inclinations cannot be measured. The idea of this study was to combine measurements fr ...
ph709-14
... HST Transit light curve from Brown et al. (2001) A triumph of the transit method occurred in 1999 when the light curve of the star HD 209458 was shown to indicate the presence of a large exoplanet in transit across its surface from the perspective of Earth (1.7% dimming). Subsequent spectroscopic st ...
... HST Transit light curve from Brown et al. (2001) A triumph of the transit method occurred in 1999 when the light curve of the star HD 209458 was shown to indicate the presence of a large exoplanet in transit across its surface from the perspective of Earth (1.7% dimming). Subsequent spectroscopic st ...
Undiscovered Worlds educators guide
... observing the effects they have on their parent stars. These effects, driven by gravity and line-of-sight, are visible to us as either periodic dimming (called “transits”) or shifting wavelengths within the electromagnetic spectrum (referred to as a “wobble”). To find a world capable of supporting l ...
... observing the effects they have on their parent stars. These effects, driven by gravity and line-of-sight, are visible to us as either periodic dimming (called “transits”) or shifting wavelengths within the electromagnetic spectrum (referred to as a “wobble”). To find a world capable of supporting l ...
The Detection and Characterization of Extrasolar Planets
... As discussed in the previous section, the first exoplanets found around Sun-like stars were detected using the radial velocity method and were, typically, in orbits very close to their parent stars. Given that we would expect the inclination of the orbits to be randomly oriented, relative to our lin ...
... As discussed in the previous section, the first exoplanets found around Sun-like stars were detected using the radial velocity method and were, typically, in orbits very close to their parent stars. Given that we would expect the inclination of the orbits to be randomly oriented, relative to our lin ...
- ANU Repository
... Accepted 2016 January 11. Received 2016 January 8; in original form 2015 June 27 ...
... Accepted 2016 January 11. Received 2016 January 8; in original form 2015 June 27 ...
Eppur Si Muove – Stellar Parallax?
... 61 Cygni has a huge proper motion – 5 arcseconds per year – making it a likely candidate for being nearby ...
... 61 Cygni has a huge proper motion – 5 arcseconds per year – making it a likely candidate for being nearby ...
Transit surveys for Earths in the habitable zones of white dwarfs
... Fig. 4.— Probability density, d2 n/(dTp d log Rp ), of detected planets vs. planet radius, Rp (log axis scale), and planet effective temperature, Tp (assuming the same albedo as Earth). The contours enclose 25%, 50%, and 75% of all detected planets; the contour levels are 29%, 53%, and 76% of the pe ...
... Fig. 4.— Probability density, d2 n/(dTp d log Rp ), of detected planets vs. planet radius, Rp (log axis scale), and planet effective temperature, Tp (assuming the same albedo as Earth). The contours enclose 25%, 50%, and 75% of all detected planets; the contour levels are 29%, 53%, and 76% of the pe ...
The ExOoS Mission - Extraterrestrial Octopus on Steroids
... Astrobiology is one of the fields with the fastest development in the last years (Harrison et al. 2013; Seager et al. 2012). Advances in molecular techniques and technology have allowed the detection and the study of living organisms and their traces in environments traditionally unconceivable to ho ...
... Astrobiology is one of the fields with the fastest development in the last years (Harrison et al. 2013; Seager et al. 2012). Advances in molecular techniques and technology have allowed the detection and the study of living organisms and their traces in environments traditionally unconceivable to ho ...
Howard 2013 Observed properties of exoplanets
... evolution. These surveys measure the frequency of planets with different masses, sizes, orbital characteristics, and host star properties. Small planets between the sizes of Earth and Neptune substantially outnumber Jupiter-sized planets. The survey measurements support the core accretion model, in ...
... evolution. These surveys measure the frequency of planets with different masses, sizes, orbital characteristics, and host star properties. Small planets between the sizes of Earth and Neptune substantially outnumber Jupiter-sized planets. The survey measurements support the core accretion model, in ...
Orbital and Physical Characteristics of Extrasolar Planets Systems
... the distribution of semimajor axis increases considerably to planets, which orbits with à<1AU. Among them are many of the co-called “Hot Jupiters” – planets, whose orbits have à<0,1AU (Figure 7); • The distribution of planets as a function of the semimajor axis clearly shows the availability of dy ...
... the distribution of semimajor axis increases considerably to planets, which orbits with à<1AU. Among them are many of the co-called “Hot Jupiters” – planets, whose orbits have à<0,1AU (Figure 7); • The distribution of planets as a function of the semimajor axis clearly shows the availability of dy ...
PLANETS
... • Maximum a ~ 3.5 AU (ie orbital period ~ 7 years) • Minimum mass ~ 0.5 Jupiter masses at 1 AU, scaling with square root of semi-major axis • No strong selection bias in favour / against detecting planets with different eccentricities Of the first 100 stars found to harbor planets, more than 30 star ...
... • Maximum a ~ 3.5 AU (ie orbital period ~ 7 years) • Minimum mass ~ 0.5 Jupiter masses at 1 AU, scaling with square root of semi-major axis • No strong selection bias in favour / against detecting planets with different eccentricities Of the first 100 stars found to harbor planets, more than 30 star ...
PDF only - at www.arxiv.org.
... Since 1928 the Bosscha Observatory is engaged in visual double stars studies, with the main purpose to develop new observational techniques in order to obtain results with accuracy greater than that attained till now. Two different observing techniques in the last decade have been developed for doub ...
... Since 1928 the Bosscha Observatory is engaged in visual double stars studies, with the main purpose to develop new observational techniques in order to obtain results with accuracy greater than that attained till now. Two different observing techniques in the last decade have been developed for doub ...
RV Metric_new_8
... Space Telescope Science Institute [email protected] June 10, 2013 Abstract Known RV exoplanets are viewed as prime targets for a future high-contrast imaging mission, which may be able to detect and characterize these enigmatic objects in reflected starlight. To help define and differentiate the cand ...
... Space Telescope Science Institute [email protected] June 10, 2013 Abstract Known RV exoplanets are viewed as prime targets for a future high-contrast imaging mission, which may be able to detect and characterize these enigmatic objects in reflected starlight. To help define and differentiate the cand ...
The 2016 Transit of Mercury
... During the 1761 transit Mikhail Lomonosov (1711 — 1765) observed a ring of light around the planet Venus which he attributed to sunlight being refracted through the Venusian atmosphere. ...
... During the 1761 transit Mikhail Lomonosov (1711 — 1765) observed a ring of light around the planet Venus which he attributed to sunlight being refracted through the Venusian atmosphere. ...
Mass determinations of PMS stars with the
... • We already had observations of BS Indi (K=6.6 mag) with AMBER but the signal resulted to be too faint (+ no standard observed) • In this period our brightest (HD113449) candidate will be observed with AMBER • We hope to observe all targets with the VLTI (UTs or ATs + fringe tracker) to put constra ...
... • We already had observations of BS Indi (K=6.6 mag) with AMBER but the signal resulted to be too faint (+ no standard observed) • In this period our brightest (HD113449) candidate will be observed with AMBER • We hope to observe all targets with the VLTI (UTs or ATs + fringe tracker) to put constra ...
PDF only - at www.arxiv.org.
... Beginning with point H, the beam absorbs a part of the light from the star due to deionization and condensation. The beam comes to a stop at D. At this point, the beam does for some reason not continue and settles as “smoke” in an orbit in direction to point G. The trail of smoke has a shape resulti ...
... Beginning with point H, the beam absorbs a part of the light from the star due to deionization and condensation. The beam comes to a stop at D. At this point, the beam does for some reason not continue and settles as “smoke” in an orbit in direction to point G. The trail of smoke has a shape resulti ...
Primary and secondary eclipse spectroscopy with JWST: exploring
... nominal mission time (summing observations, M4 V and lighter host star for primary eclipses, M5 V for secondary). If every star up to this mass limit and distance were to host a habitable planet, there would be statistically a little under one eclipsing case. We also show that detection in transmiss ...
... nominal mission time (summing observations, M4 V and lighter host star for primary eclipses, M5 V for secondary). If every star up to this mass limit and distance were to host a habitable planet, there would be statistically a little under one eclipsing case. We also show that detection in transmiss ...
Extreme Optics and the Search for Earth-Like Planets
... doppler shift in the parent star’s spectrum due to gravitationally induced wobble. This method works best for large Jupiter-sized planets with close-in orbits. ...
... doppler shift in the parent star’s spectrum due to gravitationally induced wobble. This method works best for large Jupiter-sized planets with close-in orbits. ...
Most Sub-Arcsecond Companions of Kepler Exoplanet Candidate
... Association of Universities for Research in Astronomy, Inc., under a cooperative agreement with the NSF on behalf of the Gemini partnership: the National Science Foundation (United States), the Science and Technology Facilities Council (United Kingdom), the National Research Council (Canada), CONICY ...
... Association of Universities for Research in Astronomy, Inc., under a cooperative agreement with the NSF on behalf of the Gemini partnership: the National Science Foundation (United States), the Science and Technology Facilities Council (United Kingdom), the National Research Council (Canada), CONICY ...
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.