176 citations · 804 across the 26 of their papers we have counts for
14 papers · 1 filter
Metal-poor Brown Dwarf Kinematics from JWST NIRSpec Spectroscopy
Chih-Chun Hsu, Christopher A. Theissen, Adam J. Burgasser +14
Galactic archaeology relies on stellar kinematics and chemical abundances to identify various stellar populations and associations. With JWST, Galactic archaeology of ancient metal…
Retrieving Young Cloudy L-Dwarfs: A Nearby Planetary-Mass Companion BD+60 1417B and Its Isolated Red Twin W0047
Caprice L. Phillips, Jacqueline K. Faherty, Ben Burningham +11
We present an atmospheric retrieval analysis on a set of young, cloudy, red L-dwarfs -- CWISER J124332.12+600126.2 and WISEP J004701.06+680352.1 -- using the \textit{Brewster} retr…
The puzzle of the formation of T8 dwarf Ross 458c
Josefine Gaarn, Ben Burningham, Jacqueline K. Faherty +7
At the lowest masses, the distinction between brown dwarfs and giant exoplanets is often blurred and literature classifications rarely reflect the deuterium burning boundary. Atmos…
An Atmospheric Retrieval of the Brown Dwarf Gliese 229B
Emily Calamari, Jacqueline K. Faherty, Ben Burningham +6
We present results from an atmospheric retrieval analysis of Gl 229B using the BREWSTER retrieval code. We find the best fit model to be cloud-free, consistent with the T dwarf ret…
A Wide Planetary Mass Companion Discovered Through the Citizen Science Project Backyard Worlds: Planet 9
Jacqueline K. Faherty, Jonathan Gagne, Mark Popinchalk +24
Through the Backyard Worlds: Planet 9 citizen science project we discovered a late-type L dwarf co-moving with the young K0 star BD+60 1417 at a projected separation of 37" or 1662…
The first retrieval of a substellar subdwarf: A cloud-free SDSS J125637.13-022452.4
Eileen C. Gonzales, Ben Burningham, Jacqueline K. Faherty +5
We present the first retrieval analysis of a substellar subdwarf, SDSS J125637.13-022452.4 (SDSS J1256-0224), using the Brewster retrieval code base. We find SDSS J1256-0224 is bes…
Cloud busting: enstatite and quartz clouds in the atmosphere of 2M2224-0158
Ben Burningham, Jacqueline K. Faherty, Eileen C. Gonzales +7
We present the most detailed data-driven exploration of cloud opacity in a substellar object to-date. We have tested over 60 combinations of cloud composition and structure, partic…
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…
Retrieval of SDSS J1416+1348AB
Eileen Gonzales, Ben Burningham, Jackie Faherty +5
We present the distance-calibrated spectral energy distribution (SED) of the d/sdL7 SDSS J14162408+1348263A (J1416A) and an updated SED for SDSS J14162408+1348263B (J1416B). We als…
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…
A Reanalysis of the Fundamental Parameters and Age of TRAPPIST-1
Eileen C. Gonzales, Jacqueline K. Faherty, Jonathan Gagné +3
We present the distance-calibrated spectral energy distribution (SED) of TRAPPIST-1 using a new medium resolution (R~6000) near-infrared FIRE spectrum and its Gaia parallax. We rep…
Understanding Fundamental Properties and Atmospheric Features of Subdwarfs via a Case Study of SDSS J125637.13-022452.4
Eileen C. Gonzales, Jacqueline K. Faherty, Jonathan Gagné +2
We present the distance-calibrated spectral energy distribution (SED) of the sdL3.5 subdwarf SDSS J125637.13-022452.4 (J1256-0224) using its Gaia parallax and its resultant bolomet…
A Late-type L Dwarf at 11 pc Hiding in the Galactic Plane Characterized Using Gaia DR2
Jacqueline K. Faherty, Jonathan Gagne, Adam J. Burgasser +4
We report on the characterization of a nearby (d = 11.2 pc) ultracool L dwarf (WISE J192512.78+070038.8; hereafter W1925) identified as a faint (G = 20.0) high proper motion (0.22"…
A Gaia DR2 Confirmation that 2MASS J12074836-3900043 is a Member of the TW Hya Association
Jonathan Gagné, Eileen C. Gonzales, Jacqueline K. Faherty
We use new data from Gaia DR2 to confirm that the young L1 candidate member of the TW Hya association (TWA) is now a bona fide member with a model-dependent mass estimate of ~1…