Search Results - "Asher, John"
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Origins of Hot Jupiters
Published in Annual review of astronomy and astrophysics (14-09-2018)“…Hot Jupiters were the first exoplanets to be discovered around main sequence stars and astonished us with their close-in orbits. They are a prime example of…”
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The habitability of planets orbiting M-dwarf stars
Published in Physics reports (05-12-2016)“…The prospects for the habitability of M-dwarf planets have long been debated, due to key differences between the unique stellar and planetary environments…”
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Retired A Stars Revisited: An Updated Giant Planet Occurrence Rate as a Function of Stellar Metallicity and Mass
Published in The Astrophysical journal (20-06-2018)“…Exoplanet surveys of evolved stars have provided increasing evidence that the formation of giant planets depends not only on stellar metallicity ([Fe/H]) but…”
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THE PHOTOECCENTRIC EFFECT AND PROTO-HOT JUPITERS. I. MEASURING PHOTOMETRIC ECCENTRICITIES OF INDIVIDUAL TRANSITING PLANETS
Published in The Astrophysical journal (10-09-2012)“…Exoplanet orbital eccentricities offer valuable clues about the history of planetary systems. Eccentric, Jupiter-sized planets are particularly interesting:…”
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THE FREQUENCY OF HOT JUPITERS ORBITING NEARBY SOLAR-TYPE STARS
Published in The Astrophysical journal (10-07-2012)“…We determine the fraction of F, G, and K dwarfs in the solar neighborhood hosting hot Jupiters as measured by the California Planet Survey from the Lick and…”
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A disintegrating minor planet transiting a white dwarf
Published in Nature (London) (22-10-2015)“…The atmospheres of white dwarfs often contain elements heavier than helium, even though these elements would be expected to settle into the stars’ interiors;…”
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Occurrence and Mass Distribution of Close-in Super-Earths, Neptunes, and Jupiters
Published in Science (American Association for the Advancement of Science) (29-10-2010)“…The questions of how planets form and how common Earth-like planets are can be addressed by measuring the distribution of exoplanet masses and orbital periods…”
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Radial velocity planet detection biases at the stellar rotational period
Published in Monthly notices of the Royal Astronomical Society (11-07-2016)“…Future generations of precise radial velocity (RV) surveys aim to achieve sensitivity sufficient to detect Earth mass planets orbiting in their stars’…”
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SARS‐CoV‐2 infection and early mortality of waitlisted and solid organ transplant recipients in England: A national cohort study
Published in American journal of transplantation (01-11-2020)“…Patients waitlisted for and recipients of solid organ transplants (SOT) are perceived to have a higher risk of contracting severe acute respiratory syndrome…”
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FRIENDS OF HOT JUPITERS. I. A RADIAL VELOCITY SEARCH FOR MASSIVE, LONG-PERIOD COMPANIONS TO CLOSE-IN GAS GIANT PLANETS
Published in The Astrophysical journal (20-04-2014)“…In this paper we search for distant massive companions to known transiting gas giant planets that may have influenced the dynamical evolution of these systems…”
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Stellar Spin-Orbit Misalignment in a Multiplanet System
Published in Science (American Association for the Advancement of Science) (18-10-2013)“…Stars hosting hot Jupiters are often observed to have high obliquities, whereas stars with multiple coplanar planets have been seen to have low obliquities…”
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THE TRENDS HIGH-CONTRAST IMAGING SURVEY. IV. THE OCCURRENCE RATE OF GIANT PLANETS AROUND M DWARFS
Published in The Astrophysical journal (20-01-2014)“…Doppler-based planet surveys have discovered numerous giant planets but are incomplete beyond several AU. At larger star-planet separations, direct planet…”
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A rocky composition for an Earth-sized exoplanet
Published in Nature (London) (21-11-2013)“…Doppler spectroscopic measurements of the mass of the Earth-sized planet Kepler-78b reveal that its mean density is similar to Earth’s, suggesting a…”
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ROBOTIC LASER ADAPTIVE OPTICS IMAGING OF 715 KEPLER EXOPLANET CANDIDATES USING ROBO-AO
Published in The Astrophysical journal (10-08-2014)“…The Robo-AO Kepler Planetary Candidate Survey is observing every Kepler planet candidate host star with laser adaptive optics imaging to search for blended…”
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Minerva-Australis. I. Design, Commissioning, and First Photometric Results
Published in Publications of the Astronomical Society of the Pacific (01-11-2019)“…The Minerva-Australis telescope array is a facility dedicated to the follow-up, confirmation, characterization, and mass measurement of planets orbiting bright…”
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THE DYNAMICS OF THE MULTI-PLANET SYSTEM ORBITING KEPLER-56
Published in The Astrophysical journal (20-10-2014)“…Kepler-56 is a multi-planet system containing two coplanar inner planets that are in orbits misaligned with respect to the spin axis of the host star, and an…”
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THE MASS OF KOI-94d AND A RELATION FOR PLANET RADIUS, MASS, AND INCIDENT FLUX
Published in The Astrophysical journal (01-05-2013)“…We measure the mass of a modestly irradiated giant planet, KOI-94d. We wish to determine whether this planet, which is in a 22 day orbit and receives 2700…”
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The Pan-Pacific Planet Search – VIII. Complete results and the occurrence rate of planets around low-luminosity giants
Published in Monthly notices of the Royal Astronomical Society (01-02-2020)“…Our knowledge of the populations and occurrence rates of planets orbiting evolved intermediate-mass stars lags behind that for solar-type stars by at least a…”
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THE TRENDS HIGH-CONTRAST IMAGING SURVEY. VI. DISCOVERY OF A MASS, AGE, AND METALLICITY BENCHMARK BROWN DWARF
Published in The Astrophysical journal (01-12-2016)“…ABSTRACT The mass and age of substellar objects are degenerate parameters leaving the evolutionary state of brown dwarfs ambiguous without additional…”
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