88 citations · 319 across the 14 of their papers we have counts for
14 papers
Unveiling the Infrared Excess of SIPS J2045-6332: Evidence for a Young Stellar Object with Potential Low-Mass Companion
Michiharu Hyogo, Thomas P. Bickle, Joseph R. Biggs +20
The Disk Detective project, a citizen science initiative, aims to identify circumstellar discs around stars by detecting objects with infrared (IR) excess using data from the Wide-…
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…
CWISE J105512.11+544328.3: A Nearby Y Dwarf Spectroscopically Confirmed with Keck/NIRES
Grady Robbins, Aaron M. Meisner, Adam C. Schneider +17
Y dwarfs, the coolest known spectral class of brown dwarfs, overlap in mass and temperature with giant exoplanets, providing unique laboratories for studying low-temperature atmosp…
Redder than Red: Discovery of an Exceptionally Red L/T Transition Dwarf
Adam C. Schneider, Adam J. Burgasser, Justice Bruursema +26
We present the discovery of CWISE J050626.96073842.4 (CWISE J05060738), an L/T transition dwarf with extremely red near-infrared colors discovered through the Backyard Worlds…
L-band nulling interferometry at the VLTI with Asgard/Hi-5: status and plans
Denis Defrère, Azzurra Bigioli, Colin Dandumont +34
Hi-5 is the L'-band (3.5-4.0 m) high-contrast imager of Asgard, an instrument suite in preparation for the visitor focus of the VLTI. The system is optimized for high-contrast a…
wdwarfdate: A Python Package to Derive Bayesian Ages of White Dwarfs
Rocio Kiman, Siyi Xu, Jacqueline K. Faherty +5
White dwarfs have been successfully used as cosmochronometers in the literature, however their reach has been limited in comparison to their potential. We present wdwarfdate, a pub…
Transit timing variations of AU Microscopii b and c
Gy. M. Szabó, Z. Garai, A. Brandeker +76
Here we report large-amplitude transit timing variations (TTVs) for AU\,Microcopii b and c as detected in combined TESS (2018, 2020) and CHEOPS (2020, 2021) transit observations. A…
CWISE J014611.20-050850.0AB: The Widest Known Brown Dwarf Binary in the Field
Emma Softich, Adam C. Schneider, Jennifer Patience +19
While stars are often found in binary systems, brown dwarf binaries are much rarer. Brown dwarf--brown dwarf pairs are typically difficult to resolve because they often have very s…
Let the Great World Spin: Revealing the Stormy, Turbulent Nature of Young Giant Exoplanet Analogs with the Spitzer Space Telescope
Johanna M. Vos, Jacqueline K. Faherty, Jonathan Gagné +5
We present a survey for photometric variability in young, low-mass brown dwarfs with the Spitzer Space Telescope. The 23 objects in our sample show robust signatures of youth and s…
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…
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…
A Number of Nearby Moving Groups may be Fragments of Dissolving Open Clusters
Jonathan Gagné, Jacqueline K. Faherty, Leslie Moranta +1
We propose that fourteen co-moving groups of stars uncovered by Kounkel & Covey (2019) may be related to known nearby moving groups and bridge those and nearby open clusters with s…
TOI-1278 B: SPIRou unveils a rare Brown Dwarf Companion in Close-In Orbit around an M dwarf
Étienne Artigau, Guillaume Hébrard, Charles Cadieux +39
We present the discovery of an M brown dwarf (BD) companion to the M0V star TOI-1278. The system was first identified through a percent-deep transit in TESS…
New Parallaxes for the Upper Scorpius OB Association
Jessica Donaldson, Alycia Weinberger, Jonathan Gagné +2
Upper Scorpius is a subgroup of the nearest OB association, Scorpius--Centaurus. Its young age makes it an important association to study star and planet formation. We present para…