Search Results - "ARRIAGADA, Pamela"
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Chromospheric Activity of Southern Stars from the Magellan Planet Search Program
Published in The Astrophysical journal (10-06-2011)“…I present chromospheric-activity measurements of ~670 F, G, K, and M main-sequence stars in the Southern Hemisphere, from ~8000 archival high-resolution…”
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OBLIQUITIES OF HOT JUPITER HOST STARS: EVIDENCE FOR TIDAL INTERACTIONS AND PRIMORDIAL MISALIGNMENTS
Published in The Astrophysical journal (20-09-2012)“…We provide evidence that the obliquities of stars with close-in giant planets were initially nearly random, and that the low obliquities that are often…”
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State of the Field: Extreme Precision Radial Velocities
Published in Publications of the Astronomical Society of the Pacific (01-06-2016)“…The Second Workshop on Extreme Precision Radial Velocities defined circa 2015 the state of the art Doppler precision and identified the critical path…”
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SIX PLANETS ORBITING HD 219134
Published in The Astrophysical journal (20-11-2015)“…ABSTRACT We present new, high-precision Doppler radial velocity (RV) data sets for the nearby K3V star HD 219134. The data include 175 velocities obtained with…”
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THE LICK-CARNEGIE EXOPLANET SURVEY: HD 32963-A NEW JUPITER ANALOG ORBITING A SUN-LIKE STAR
Published in The Astrophysical journal (01-02-2016)“…ABSTRACT We present a set of 109 new, high-precision Keck/HIRES radial velocity (RV) observations for the solar-type star HD 32963. Our data set reveals a…”
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APF-The Lick Observatory Automated Planet Finder
Published in Publications of the Astronomical Society of the Pacific (01-04-2014)“…The Automated Planet Finder (APF) is a facility purpose-built for the discovery and characterization of extrasolar planets through high-cadence Doppler…”
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DOPPLER MONITORING OF FIVE K2 TRANSITING PLANETARY SYSTEMS
Published in The Astrophysical journal (01-06-2016)“…ABSTRACT In an effort to measure the masses of planets discovered by the NASA K2 mission, we have conducted precise Doppler observations of five stars with…”
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The Magellan/PFS Exoplanet Search: a 55-d period dense Neptune transiting the bright (V = 8.6) star HD 95338
Published in Monthly notices of the Royal Astronomical Society (01-08-2020)“…ABSTRACT We report the detection of a transiting, dense Neptune planet candidate orbiting the bright (V = 8.6) K0.5V star HD 95338. Detection of the 55-d…”
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Two planets around Kapteyn's star: a cold and a temperate super-Earth orbiting the nearest halo red dwarf
Published in Monthly notices of the Royal Astronomical Society (01-09-2014)“…Exoplanets of a few Earth masses can be now detected around nearby low-mass stars using Doppler spectroscopy. In this Letter, we investigate the radial…”
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MagAO IMAGING OF LONG-PERIOD OBJECTS (MILO). I. A BENCHMARK M DWARF COMPANION EXCITING A MASSIVE PLANET AROUND THE SUN-LIKE STAR HD 7449
Published in The Astrophysical journal (20-02-2016)“…ABSTRACT We present high-contrast Magellan adaptive optics images of HD 7449, a Sun-like star with one planet and a long-term radial velocity (RV) trend. We…”
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NO EVIDENCE FOR ACTIVITY CORRELATIONS IN THE RADIAL VELOCITIES OF KAPTEYN'S STAR
Published in The Astrophysical journal (20-10-2016)“…ABSTRACT Stellar activity may induce Doppler variability at the level of a few m s−1 which can then be confused by the Doppler signal of an exoplanet orbiting…”
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MagAO IMAGING OF LONG-PERIOD OBJECTS (MILO). II. A PUZZLING WHITE DWARF AROUND THE SUN-LIKE STAR HD 11112
Published in The Astrophysical journal (10-11-2016)“…ABSTRACT HD 11112 is an old, Sun-like star that has a long-term radial velocity (RV) trend indicative of a massive companion on a wide orbit. Here we present…”
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TWO PLANETARY COMPANIONS AROUND THE K7 DWARF GJ 221: A HOT SUPER-EARTH AND A CANDIDATE IN THE SUB-SATURN DESERT RANGE
Published in The Astrophysical journal (01-07-2013)“…We report two low-mass companions orbiting the nearby K7 dwarf GJ 221 that have emerged from reanalyzing 4.4 yr of publicly available HARPS spectra…”
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MagAO IMAGING OF LONG-PERIOD OBJECTS (MILO). I. A BENCHMARK M DWARF COMPANION EXCITING A MASSIVE PLANET AROUND THE SUN-LIKE STAR HD 7449 This paper includes data obtained at the 6.5 m Magellan Telescopes located at Las Campanas Observatory, Chile
Published in The Astrophysical journal (11-02-2016)“…ABSTRACT We present high-contrast Magellan adaptive optics images of HD 7449, a Sun-like star with one planet and a long-term radial velocity (RV) trend. We…”
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Low-Mass Companions for Five Solar-Type Stars From the Magellan Planet Search Program
Published in The Astrophysical journal (10-03-2009)“…We report low-mass companions orbiting five solar-type stars that have emerged from the Magellan precision Doppler velocity survey, with minimum (Msin i)…”
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State of the Field: Extreme Precision Radial Velocities
Published in Publications of the Astronomical Society of the Pacific (01-06-2016)“…The Second Workshop on Extreme Precision Radial Velocities defined circa 2015 the state of the art Doppler precision and identified the critical path…”
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State of the Field: Extreme Precision Radial Velocities The content of this publication emerged from presentations and discussion by the 150 participants in the Second Workshop on Extreme Precision Radial Velocities, held at Yale University. The talks and posters from this meeting are archived at http://eprv.astro.yale.edu
Published in Publications of the Astronomical Society of the Pacific (17-05-2016)“…The Second Workshop on Extreme Precision Radial Velocities defined circa 2015 the state of the art Doppler precision and identified the critical path…”
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RESEÑA DE LIBRO: BLANCOS, NEGROS Y GRISES DE LA LECTURA DIGITAL EN LA PRIMERA INFANCIA
Published in Revista Enfoques educacionales (28-06-2022)“…Lectura digital en la primera infancia, publicado por el Centro Regional para el Fomento del Libro en América Latina y el Caribe (CERLALC), es un compilado de…”
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A PLANETARY SYSTEM AROUND THE NEARBY M DWARF GJ 667C WITH AT LEAST ONE SUPER-EARTH IN ITS HABITABLE ZONE
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Five Long-period Extrasolar Planets in Eccentric Orbits from the Magellan Planet Search Program
Published in The Astrophysical journal (10-03-2010)“…Five new planets orbiting G and K dwarfs have emerged from the Magellan velocity survey. These companions are Jovian-mass planets in eccentric (e >= 0.24)…”
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