The Gemini Deep Planet Survey

  title={The Gemini Deep Planet Survey},
  author={David Lafreni{\`e}re and Ren{\'e} Doyon and Christian Marois and Daniel Nadeau and Ben R. Oppenheimer and Patrick F. Roche and François Rigaut and James R. Graham and Ray Jayawardhana and Doug Johnstone and Paul Kalas and Bruce A. Macintosh and Ren{\'e} Racine},
  journal={The Astrophysical Journal},
We present the results of the Gemini Deep Planet Survey, a near-infrared adaptive optics search for giant planets and brown dwarfs around 85 nearby young stars. The observations were obtained with the Altair adaptive optics system at the Gemini North telescope, and angular differential imaging was used to suppress the speckle noise of the central star. Typically, the observations are sensitive to angular separations beyond 0.5'' with 5 σ contrast sensitivities in magnitude difference at 1.6 μm… Expand
The Gemini NICI Planet-Finding Campaign: The Frequency of Giant Planets Around Debris Disk Stars
We have completed a high-contrast direct imaging survey for giant planets around 57 debris disk stars as part of the Gemini NICI Planet-Finding Campaign. We achieved median H-band contrasts of 12.4Expand
The International Deep Planet Survey - I. The frequency of wide-orbit massive planets around A-stars
Breakthrough direct detections of planetary companions orbiting A-type stars confirm the existence of massive planets at relatively large separations, but dedicated surveys are required to estimateExpand
The Palomar/Keck Adaptive Optics Survey of Young Solar Analogs: Evidence for a Universal Companion Mass Function
We present results from an adaptive optics survey for substellar and stellar companions to Sun-like stars. The survey targeted 266 F5-K5 stars in the 3 Myr-3 Gyr age range with distances of 10-190Expand
Results of the NaCo Large Program: probing the occurrence of exoplanets and brown dwarfs at wide orbit
Abstract Over the past decade, a growing number of deep imaging surveys have started to provide meaningful constraints on the population of extrasolar giant planets at large orbital separation.Expand
Direct Imaging Search for Extrasolar Planets in the Pleiades
We carried out an imaging survey for extrasolar planets around stars in the Pleiades (125 Myr, 135 pc) in the H and KS bands using HiCIAO combined with adaptive optics, AO188, on the SubaruExpand
The likelihood of detecting young giant planets with high-contrast imaging and interferometry
Giant planets are expected to form at orbital radii that are relatively large compared to transit and radial velocity detections (>1 AU). As a result, giant planet formation is best observed throughExpand
A direct imaging search for close stellar and sub‐stellar companions to young nearby stars
A total of 28 young nearby stars (ages ≤60 Myr) have been observed in the Ks-band with the adaptive optics imager Naos-Conica of the Very Large Telescope at the Paranal Observatory in Chile. AmongExpand
The DODO survey – II. A Gemini direct imaging search for substellar and planetary mass companions around nearby equatorial and Northern hemisphere white dwarfs
The aim of the Degenerate Objects around Degenerate Objects (DODO) survey is to search for very low-mass brown dwarfs and extrasolar planets in wide orbits around white dwarfs via direct imaging. TheExpand
High Contrast Imaging with Spitzer : Constraining the Frequency of Giant Planets out to 1000 AU separations
We report results of a re-analysis of archival Spitzer IRAC direct imaging surveys encompassing a variety of nearby stars. Our sample is generated from the combined observations of 73 young starsExpand
We present the results of an aperture-masking interferometry survey for substellar companions around 67 members of the young (~8-200 Myr) nearby (~5-86 pc) AB Doradus, β Pictoris, Hercules-Lyra, TWExpand


An Adaptive Optics Search for Companions to Stars with Planets
We have performed a Keck adaptive optics (AO) imaging survey of 25 extrasolar planetary systems discovered by the radial velocity programs. Typically, the high-resolution (FWHM ~ 004) near-infraredExpand
A Search for Hot Massive Extrasolar Planets around Nearby Young Stars with the Adaptive Optics System NACO
We report on a survey devoted to the search of exoplanets around young and nearby stars carried out with NACO at the VLT. The detection limit for 28 among the best available targets versus theExpand
Probing long-period companions to planetary hosts : VLT and CFHT near infrared coronographic imaging surveys
Aims. We present the results of a deep imaging survey of stars surrounded by planets detected with the radial velocity technique. The purpose is to search for and to characterize long-period stellarExpand
Discovery of Two T Dwarf Companions with the Spitzer Space Telescope
We report the discovery of T dwarf companions to the nearby stars HN Peg (G0 V, 18.4 pc, τ ~ 0.3 Gyr) and HD 3651 (K0 V, 11.1 pc, τ ~ 7 Gyr). During an ongoing survey of 5' × 5' fields surroundingExpand
Hokupa'a-gemini discovery of two ultracool companions to the young star hd 130948
We report the discovery of two faint ultracool companions to the nearby (d ~ 17.9 pc) young G2 V star HD 130948 (HR 5534, HIP 72567) using the Hokupa'a adaptive optics (AO) instrument mounted on theExpand
The Brown Dwarf Desert at 75-1200 AU
Results of a comprehensive infrared coronagraphic search for substellar companions to nearby stars imply that substellar objects with masses between 12 and 75 MJ form only rarely as companions to stars. Expand
A giant planet candidate near a young brown dwarf - Direct VLT/NACO observations using IR wavefront sensing
We present deep VLT/NACO infrared imaging and spectroscopic observations of the brown dwarf 2MASSWJ 1207334−393254, obtained during our on-going adaptive optics survey of southern young, nearbyExpand
Detection of Planetary Transits Across a Sun-like Star.
High-precision, high-cadence photometric measurements of the star HD 209458 are reported, which is known from radial velocity measurements to have a planetary-mass companion in a close orbit and the detailed shape of the transit curve due to both the limb darkening of thestar and the finite size of the planet is clearly evident. Expand
Initial Results from the Palomar Adaptive Optics Survey of Young Solar-Type Stars: A Brown Dwarf and Three Stellar Companions
We present first results from the Palomar Adaptive Optics Survey of Young Stars conducted at the Hale 5 m telescope. Through direct imaging we have discovered a brown dwarf and two low-mass stellarExpand
Discovery of a cool planet of 5.5 Earth masses through gravitational microlensing
The detection of a cool, sub-Neptune-mass planets may be more common than gas giant planets, as predicted by the core accretion theory, and is suggested to name OGLE-2005-BLG-390Lb, indicating a planetary mass companion to the lens star of the microlensing event. Expand