A Substellar Companion to the Dusty Pleiades Star HD 23514
arXiv:1112.4815 · doi:10.1088/0004-637X/748/1/30
Abstract
With adaptive optics imaging at Keck observatory, we have discovered a substellar companion to the F6 Pleiades star HD 23514, one of the dustiest main-sequence stars known to date (L_{IR}/L_{*}~2%). This is one of the first brown dwarfs discovered as a companion to a star in the Pleiades. The 0.06 M late-M secondary has a projected separation of ~360 AU. The scarcity of substellar companions to stellar primaries in the Pleiades combined with the extremely dusty environment make this a unique system to study.
18 pages, 5 figures, accepted in ApJ
References in corpus (16)
- A Revised Age for Upper Scorpius and The Star-Formation History Among the F-Type Members of the Scorpius-Centaurus OB Association
- Tertiary companions to close spectroscopic binaries
- Spitzer IRS Spectroscopy of IRAS-Discovered Debris Disks
- Direct Imaging and Spectroscopy of a Planetary Mass Candidate Companion to a Young Solar Analog
- The Palomar/Keck Adaptive Optics Survey of Young Solar Analogs: Evidence for a Universal Companion Mass Function
- Mapping the Shores of the Brown Dwarf Desert I.: Upper Scorpius
- The Distances to Open Clusters from Main-Sequence Fitting. III. Improved Accuracy with Empirically Calibrated Isochrones
- Abundant Circumstellar Silica Dust and SiO Gas Created by a Giant Hypervelocity Collision in the ~12 Myr HD172555 System
- Near and Mid-IR Photometry of the Pleiades, and a New List of Substellar Candidate Members
- Warm dust in the terrestrial planet zone of a sun-like Pleiad: collisions between planetary embryos?
- Binaries Among Debris Disk Stars
- Debris Disks in NGC 2547
- Planetary systems around close binary stars: the case of the very dusty, Sun-like, spectroscopic binary BD+20 307
- EF Cha: Warm Dust Orbiting a Nearby 10 Myr Old Star
- A Substellar Common Proper Motion Companion to the Pleiad HII 1348
- On the Binary Nature of Dust-encircled BD+20 307
Cited by in corpus (21)
- Stellar Multiplicity
- Population-Level Eccentricity Distributions of Imaged Exoplanets and Brown Dwarf Companions: Dynamical Evidence for Distinct Formation Channels
- A Statistical Analysis of SEEDS and Other High-Contrast Exoplanet Surveys: Massive Planets or Low-Mass Brown Dwarfs?
- Rotation in the Pleiades With K2: III. Speculations on Origins and Evolution
- Variability of the Infrared Excess of Extreme Debris Disks
- Planetary Collisions outside the Solar System: Time Domain Characterization of Extreme Debris Disks
- Direct Imaging Search for Extrasolar Planets in the Pleiades
- SPOTS: The Search for Planets Orbiting Two Stars: II. First constraints on the frequency of sub-stellar companions on wide circumbinary orbits
- Characterization of the gaseous companion κ Andromedae b: New Keck and LBTI high-contrast observations
- Survival Rates of Planets in Open Clusters: the Pleiades, Hyades, and Praesepe clusters
- Long-term Spectroscopic Survey of the Pleiades Cluster: The Binary Population
- A new sample of warm extreme debris disks from the ALLWISE catalog
- Planets Around Low-Mass Stars (PALMS). V. Age-Dating Low-Mass Companions to Members and Interlopers of Young Moving Groups
- Herschel Observations of Dusty Debris Disks
- The dynamical evolution of low-mass hydrogen-burning stars, brown dwarfs and planetary-mass objects formed through disc fragmentation
- Warm Dusty Debris Disks and Distant Companion Stars: V488 Per and 2M1337
- Imaged sub-stellar companions: not as eccentric as they appear? The effect of an unseen inner mass on derived orbits
- Radial-velocity search and statistical studies for short-period planets in the Pleiades open cluster
- Orbital Modeling of HII 1348B: An Eccentric Young Substellar Companion in the Pleiades
- A Substellar Companion to Pleiades HII 3441
- Discovery of Volatile Gas in the Giant Impact Disk around the 150-Myr old HD 23514