The field substellar mass function based on the full-sky 20 pc census of 525 L, T, and Y dwarfs

JD Kirkpatrick, CR Gelino, JK Faherty… - The Astrophysical …, 2021 - iopscience.iop.org
We present final Spitzer trigonometric parallaxes for 361 L, T, and Y dwarfs. We combine
these with prior studies to build a list of 525 known L, T, and Y dwarfs within 20 pc of the …

The Hawaii infrared parallax program. I. Ultracool binaries and the L/T transition

TJ Dupuy, MC Liu - The Astrophysical Journal Supplement …, 2012 - iopscience.iop.org
We present the first results from our high-precision infrared (IR) astrometry program at the
Canada–France–Hawaii Telescope. We measure parallaxes for 83 ultracool dwarfs …

Stellar, brown dwarf and multiple star properties from a radiation hydrodynamical simulation of star cluster formation

MR Bate - Monthly Notices of the Royal Astronomical Society, 2012 - academic.oup.com
We report the statistical properties of stars, brown dwarfs and multiple systems obtained from
the largest radiation hydrodynamical simulation of star cluster formation to date that resolves …

The Milky Way tomography with SDSS. I. Stellar number density distribution

M Jurić, Ž Ivezić, A Brooks, RH Lupton… - The Astrophysical …, 2008 - iopscience.iop.org
Using the photometric parallax method we estimate the distances to∼ 48 million stars
detected by the Sloan Digital Sky Survey (SDSS) and map their three-dimensional number …

The Hawaii infrared parallax program. II. Young ultracool field dwarfs

MC Liu, TJ Dupuy, KN Allers - The Astrophysical Journal, 2016 - iopscience.iop.org
We present a large, uniform analysis of young (≈ 10–150 Myr) ultracool dwarfs, based on
new high-precision infrared (IR) parallaxes for 68 objects. We find that low-gravity (vl-g) late …

Individual Dynamical Masses of Ultracool Dwarfs

TJ Dupuy, MC Liu - The Astrophysical Journal Supplement …, 2017 - iopscience.iop.org
We present the full results of our decade-long astrometric monitoring programs targeting 31
ultracool binaries with component spectral types M7–T5. Joint analysis of resolved imaging …

BANYAN. II. Very low mass and substellar candidate members to nearby, young kinematic groups with previously known signs of youth

J Gagné, D Lafrenière, R Doyon, L Malo… - The Astrophysical …, 2014 - iopscience.iop.org
ABSTRACT We present Bayesian Analysis for Nearby Young AssociatioNs II (BANYAN II), a
modified Bayesian analysis for assessing the membership of later-than-M5 objects to any of …

Stellar, brown dwarf and multiple star properties from hydrodynamical simulations of star cluster formation

MR Bate - Monthly Notices of the Royal Astronomical Society, 2009 - academic.oup.com
We report the statistical properties of stars, brown dwarfs and multiple systems obtained from
the largest hydrodynamical simulation of star cluster formation to date that resolves masses …

A Volume-limited Sample of Ultracool Dwarfs. I. Construction, Space Density, and a Gap in the L/T Transition

WMJ Best, MC Liu, EA Magnier… - The Astronomical …, 2020 - iopscience.iop.org
We present a new volume-limited sample of L0–T8 dwarfs out to 25 pc defined entirely by
parallaxes, using our recent measurements from UKIRT/WFCAM along with Gaia DR2 and …

The 0.8–14.5 μm spectra of mid-L to mid-T dwarfs: diagnostics of effective temperature, grain sedimentation, gas transport, and surface gravity

DC Stephens, SK Leggett, MC Cushing… - The Astrophysical …, 2009 - iopscience.iop.org
ABSTRACT We present new 5.2–14.5 μm low-resolution spectra of 14 mid-L to mid-T
dwarfs. We also present new 3.0–4.1 μm spectra for five of these dwarfs. These data are …