136 citations · 998 across the 39 of their papers we have counts for
34 papers · 1 filter
Sinking Silicates I: Characterizing the benchmark system containing the T0 brown dwarf CWISE J210640.16+250729.0 using JWST
Austin Rothermich, Jacqueline K. Faherty, Ben Burningham +16
In this study, we present the full (97.3\% complete) 0.8--12.5 m spectral energy distribution (SED) of an L/T transition object, CWISE J210640.16+250729.0 (CW2106), using the Ja…
The Dyn-Atmo Survey: High-contrast Imaging Spectroscopy of the Substellar Companion HD 13724 B with the JWST NIRSpec IFU
Kielan K. W. Hoch, Alex Madurowicz, Evert Nasedkin +22
We present the first spectral analysis from the JWST Cycle 3 GO Program #6362, the Dyn-Atmo Survey of dynamical-atmospheric benchmarks, characterizing the atmospheres of directly-i…
The Diversity of Cold Worlds: a blended-light binary straddling the T/Y transition in brown dwarfs
Daniella C. Bardalez Gagliuffi, Jacqueline K. Faherty, Genaro Suarez +22
We present the first brown dwarf spectral binary characterized with JWST: WISE J014656.66+423410.0, the coldest blended-light brown dwarf binary straddling the T/Y transition. We o…
Simulating Brown Dwarf Observations for Various Mass Functions, Birthrates, and Low-mass Cutoffs
Yadukrishna Raghu, J. Davy Kirkpatrick, Federico Marocco +12
After decades of brown dwarf discovery and follow-up, we can now infer the functional form of the mass distribution within 20 parsecs, which serves as a constraint on star formatio…
Methane Emission From a Cool Brown Dwarf
Jacqueline K. Faherty, Ben Burningham, Jonathan Gagné +21
Beyond our solar system, aurorae have been inferred from radio observations of isolated brown dwarfs (e.g. Hallinan et al. 2006; Kao et al. 2023). Within our solar system, giant pl…
An Informed and Systematic Method to Identify Variable mid-L dwarfs
Natalia Oliveros-Gomez, Elena Manjavacas, Daniella C. Bardalez Gagliuffi +3
Most brown dwarfs show some level of photometric or spectral variability. However, finding the most variable dwarfs more suited for a thorough variability monitoring campaign remai…
An Investigation of New Brown Dwarf Spectral Binary Candidates From the Backyard Worlds: Planet 9 Citizen Science Initiative
Alexia Bravo, Adam C. Schneider, Daniella Bardalez Gagliuffi +11
We present three new brown dwarf spectral binary candidates: CWISE J072708.09360729.2, CWISE J103604.84514424.4, and CWISE J134446.62732053.9, discovered by citizen scient…
Long-term 4.6m Variability in Brown Dwarfs and a New Technique for Identifying Brown Dwarf Binary Candidates
Hunter Brooks, J. Davy Kirkpatrick, Aaron M. Meisner +11
Using a sample of 361 nearby brown dwarfs, we have searched for 4.6m variability indicative of large-scale rotational modulations or large-scale long-term changes on timescales…
JWST/NIRCam discovery of the first Y+Y brown dwarf binary: WISE J033605.05014350.4
Per Calissendorff, Matthew De Furio, Michael Meyer +25
We report the discovery of the first brown dwarf binary system with a Y dwarf primary, WISE J033605.05014350.4, observed with NIRCam on JWST with the F150W and F480M filters. We…
Examining the Rotation Period Distribution of the 40 Myr Tucana-Horologium Association with TESS
Mark Popinchalk, Jacqueline K. Faherty, Jason L. Curtis +6
The Tucana-Horologium Association (Tuc-Hor) is a 40 Myr old moving group in the southern sky. In this work, we measure the rotation periods of 313 Tuc-Hor objects with TESS light c…
Disentangling the Signatures of Blended-Light Atmospheres in L/T Transition Brown Dwarfs
Afra Ashraf, Daniella C. Bardalez Gagliuffi, Elena Manjavacas +3
We present a technique to identify spectrophotometrically variable L7-T3 brown dwarfs with single-epoch, low-resolution, near-infrared SpeX spectra. We calculated spectral indices…
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…
Beyond the Local Volume. I. Surface Densities of Ultracool Dwarfs in Deep HST/WFC3 Parallel Fields
Christian Aganze, Adam J Burgasser, Mathew Malkan +6
Ultracool dwarf stars and brown dwarfs provide a unique probe of large-scale Galactic structure and evolution; however, until recently spectroscopic samples of sufficient size, dep…
The Brown Dwarf Kinematics Project (BDKP). V. Radial and Rotational Velocities of T Dwarfs from Keck/NIRSPEC High-Resolution Spectroscopy
Chih-Chun Hsu, Adam J. Burgasser, Christopher A. Theissen +7
We report multi-epoch radial velocities, rotational velocities, and atmospheric parameters for 37 T-type brown dwarfs observed with Keck/NIRSPEC. Using a Markov Chain Monte Carlo f…
New Candidate Extreme T Subdwarfs from the Backyard Worlds: Planet 9 Citizen Science Project
Aaron M. Meisner, Adam C. Schneider, Adam J. Burgasser +29
Schneider et al. (2020) presented the discovery of WISEA J041451.67-585456.7 and WISEA J181006.18-101000.5, which appear to be the first examples of extreme T-type subdwarfs (esdTs…
Calibration of the Halpha Age-Activity relation for M dwarfs
Rocio Kiman, Jacqueline K. Faherty, Kelle L. Cruz +6
In this work, we calibrate the relationship between Halpha emission and M dwarf ages. We compile a sample of 892 M dwarfs with Halpha equivalent width (HaEW) measurements from the…
Discovery of a Nearby Young Brown Dwarf Disk
M. C. Schutte, K. D. Lawson, J. P. Wisniewski +15
We report the discovery of the youngest brown dwarf with a disk at 102 pc from the Sun, WISEA~J120037.79-784508.3 (W1200-7845), via the Disk Detective citizen science project. We e…
An Eclipsing Substellar Binary in a Young Triple System discovered by SPECULOOS
Amaury H. M. J. Triaud, Adam J. Burgasser, Artem Burdanov +18
Mass, radius, and age are three of the most fundamental parameters for celestial objects, enabling studies of the evolution and internal physics of stars, brown dwarfs, and planets…
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…
The Ultracool SpeXtroscopic Survey. I. Volume-Limited Spectroscopic Sample and Luminosity Function of M7L5 Ultracool Dwarfs
Daniella C. Bardalez Gagliuffi, Adam J. Burgasser, Sarah J. Schmidt +9
We present a volume-limited, spectroscopically-verified sample of M7L5 ultracool dwarfs within 25\,pc. The sample contains 410 sources, of which have trigonometric distan…
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"…
An L+T Spectral Binary with Possible AB Doradus Kinematics
Daniella C. Bardalez Gagliuffi, Jonathan Gagne, Jacqueline Faherty +1
We present the identification of WISE~J135501.90825838.9 as a spectral binary system with a slight possibility of planetary-mass components in the \,Myr AB~Doradus movi…
2MASS J11151597+1937266: A Young, Dusty, Isolated, Planetary-Mass Object with a Potential Wide Stellar Companion
Christopher A. Theissen, Adam J. Burgasser, Daniella C. Bardalez Gagliuffi +4
We present 2MASS J11151597+1937266, a recently identified low-surface gravity L dwarf, classified as an L2 based on Sloan Digital Sky Survey optical spectroscopy. We confirm thi…
SIMP J013656.5+093347 is Likely a Planetary-Mass Object in the Carina-Near Moving Group
Jonathan Gagné, Jacqueline K. Faherty, Adam J. Burgasser +6
We report the discovery that the nearby ( 6 pc) photometrically variable T2.5 dwarf SIMP~J013656.5+093347 is a likely member of the 200 Myr-old Carina-Near moving grou…