Stellar multiplicity

G Duchêne, A Kraus - Annual Review of Astronomy and …, 2013 - annualreviews.org
Stellar multiplicity is a ubiquitous outcome of the star-formation process. The frequency and
main characteristics of multiple systems, and their dependence on primary mass and …

Fundamental parameters and spectral energy distributions of young and field age objects with masses spanning the stellar to planetary regime

JC Filippazzo, EL Rice, J Faherty, KL Cruz… - The Astrophysical …, 2015 - iopscience.iop.org
We combine optical, near-infrared, and mid-infrared spectra and photometry to construct
expanded spectral energy distributions for 145 field age (> 500 Myr) and 53 young (lower …

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 …

The 10 parsec sample in the Gaia era

C Reylé, K Jardine, P Fouqué, JA Caballero… - Astronomy & …, 2021 - aanda.org
Context. The nearest stars provide a fundamental constraint for our understanding of stellar
physics and the Galaxy. The nearby sample serves as an anchor where all objects can be …

The first hundred brown dwarfs discovered by the Wide-field Infrared Survey Explorer (WISE)

JD Kirkpatrick, MC Cushing, CR Gelino… - The Astrophysical …, 2011 - iopscience.iop.org
We present ground-based spectroscopic verification of 6 Y dwarfs (see also Cushing et al.),
89 T dwarfs, 8 L dwarfs, and 1 M dwarf identified by the Wide-field Infrared Survey Explorer …

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 …

Preliminary trigonometric parallaxes of 184 late-T and Y dwarfs and an analysis of the field substellar mass function into the “planetary” mass regime

JD Kirkpatrick, EC Martin, RL Smart… - The Astrophysical …, 2019 - iopscience.iop.org
We present preliminary trigonometric parallaxes of 184 late-T and Y dwarfs using
observations from Spitzer (143), the US Naval Observatory (18), the New Technology …

Self-consistent models of Y dwarf atmospheres with water clouds and disequilibrium chemistry

B Lacy, A Burrows - The Astrophysical Journal, 2023 - iopscience.iop.org
Y dwarfs are the coolest spectral class of brown dwarf. They have effective temperatures
less than 500 K, with the coolest detection as low as∼ 250 K. They make up the low-mass …

Strong brightness variations signal cloudy-to-clear transition of brown dwarfs

J Radigan, D Lafrenière… - The Astrophysical …, 2014 - iopscience.iop.org
We report the results of a J-band search for cloud-related variability in the atmospheres of 62
L4–T9 dwarfs using the Du Pont 2.5 m telescope at Las Campanas Observatory and the …

Photometry and proper motions of M, L, and T dwarfs from the pan-STARRS1 3π survey

WMJ Best, EA Magnier, MC Liu, KM Aller… - The Astrophysical …, 2017 - iopscience.iop.org
We present a catalog of 9888 M, L and T dwarfs detected in the Pan-STARRS1 3π Survey
(PS1), covering three-quarters of the sky. Our catalog contains nearly all known objects of …