activity
20192026
most citedThe Field Substellar Mass Function Based on the Full-sky 20-pc Census of 525 L, T, and Y Dwarfs

171 citations · 276 across the 11 of their papers we have counts for

collaborators

11 papers

astro-ph.SR2026

A SPHEREx Pipeline and Spectral Library for Ultracool Dwarfs

Jonathan Gagné, Jacqueline K. Faherty, Azul Ruiz Diaz +72

We present a Python spectrophotometry extraction tool tailored for fast-moving point sources detected in the SPHEREx mission, and use it to construct a set of 0.75-5.0 m low-res…

astro-ph.SR2026

Three Thousand Motion-Confirmed L and T Dwarf Candidates from the Backyard Worlds:~Planet 9 Citizen Science Project

Adam C. Schneider, Marc J. Kuchner, Jacqueline K. Faherty +73

The Backyard Worlds: Planet 9 citizen science project uses data from the Wide-field Infrared Survey Explorer to detect infrared objects with significant motion. In this work, we pr…

astro-ph.SR2025

High Proper Motion Discoveries from the UKIRT Hemisphere Survey

Wings Zhang, Adam C. Schneider, Thomas P. Bickle +31

We used the third data release of the UKIRT Hemisphere Survey to locate previously unrecognized high proper motion objects. We identify a total of 127 new discoveries with total pr…

astro-ph.SR2024

New Cold Subdwarf Discoveries from Backyard Worlds and a Metallicity Classification System for T Subdwarfs

Adam J. Burgasser, Adam C. Schneider, Aaron M. Meisner +36

We report the results of a spectroscopic survey of candidate T subdwarfs identified by the Backyard Worlds: Planet 9 program. Near-infrared spectra of 31 sources with red co…

astro-ph.SR2024

Discovery of 118 New Ultracool Dwarf Candidates Using Machine Learning Techniques

Hunter Brooks, Dan Caselden, J. Davy Kirkpatrick +44

We present the discovery of 118 new ultracool dwarf candidates, discovered using a new machine learning tool, named \texttt{SMDET}, applied to time series images from the Wide-fiel…

astro-ph.SR2024★ 1 cited

89 New Ultracool Dwarf Co-Moving Companions Identified With The Backyard Worlds: Planet 9 Citizen Science Project

Austin Rothermich, Jacqueline K. Faherty, Daniella Bardalez-Gagliuffi +43

We report the identification of 89 new systems containing ultracool dwarf companions to main sequence stars and white dwarfs, using the citizen science project Backyard Worlds: Pla…

astro-ph.SR2023★ 2 cited

The Initial Mass Function Based on the Full-sky 20-pc Census of 3,600 Stars and Brown Dwarfs

J. Davy Kirkpatrick, Federico Marocco, Christopher R. Gelino +85

A complete accounting of nearby objects -- from the highest-mass white dwarf progenitors down to low-mass brown dwarfs -- is now possible, thanks to an almost complete set of trigo…

astro-ph.SR2021★ 12 cited

Discovery of 16 New Members of the Solar Neighborhood using Proper Motions from CatWISE2020

Tarun Kota, J. Davy Kirkpatrick, Dan Caselden +17

In an effort to identify nearby and unusual cold objects in the solar neighborhood, we searched for previously unidentified moving objects using CatWISE2020 proper motion data comb…

astro-ph.SR2020★ 171 cited

The Field Substellar Mass Function Based on the Full-sky 20-pc Census of 525 L, T, and Y Dwarfs

J. Davy Kirkpatrick, Christopher R. Gelino, Jacqueline K. Faherty +49

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 th…

astro-ph.SR2020★ 58 cited

Spitzer Follow-up of Extremely Cold Brown Dwarfs Discovered by the Backyard Worlds: Planet 9 Citizen Science Project

Aaron M. Meisner, Jacqueline K. Faherty, J. Davy Kirkpatrick +40

We present Spitzer follow-up imaging of 95 candidate extremely cold brown dwarfs discovered by the Backyard Worlds: Planet 9 citizen science project, which uses visually perceived…

astro-ph.SR2019★ 32 cited

WISE2150-7520AB: A very low mass, wide co-moving brown dwarf system discovered through the citizen science project Backyard Worlds: Planet 9

Jacqueline K. Faherty, Sam Goodman, Dan Caselden +11

We report the discovery of WISE2150-7520AB (W2150AB): a widely separated (~ 341 AU) very low mass L1 + T8 co-moving system. The system consists of the previously known L1 primary 2…