65 citations · 142 across the 13 of their papers we have counts for
9 papers · 1 filter
JWST/NIRSpec Spectra for Three Ultracool Brown Dwarfs Detected in Extragalactic Surveys: Further Evidence for Phosphine Absorption
Kevin N. Hainline, Samuel A. Beiler, Adam J. Burgasser +14
We present JWST NIRSpec prism spectra for three ultracool brown dwarfs discovered in extragalactic survey data, two from the JWST Advanced Deep Extragalactic Survey (JADES), and on…
SMDET-1: a Nearby Y Dwarf Candidate
Aaron M. Meisner, Dan Caselden, Federico Marocco +11
We present the discovery of SMDET-1, a red, fast-moving object ("/yr) identified in time-resolved unWISE coadds using a pixel-level deep learning methodology called S…
A Comprehensive Atmospheric Retrieval Analysis of 22 James Webb Space Telescope Spectral Energy Distributions of Cool Brown Dwarfs
Harshil Kothari, Michael C. Cushing, Samuel A. Beiler +5
We present a uniform atmospheric retrieval analysis of 22 late-T and Y-type brown dwarfs within 20 pc, observed with the James Webb Space Telescope NIRSpec PRISM and MIRI LRS. This…
Observation of undepleted phosphine in the atmosphere of a low-temperature brown dwarf
Adam J. Burgasser, Eileen C. Gonzales, Samuel A. Beiler +16
The atmospheres of low-temperature brown dwarfs and gas giant planets are expected to contain the phosphine molecule, PH However, previous observations have shown much lower ab…
Protosolar D-to-H abundance and one part-per-billion PH in the coldest brown dwarf
Melanie J. Rowland, Caroline V. Morley, Brittany E. Miles +24
The coldest Y spectral type brown dwarfs are similar in mass and temperature to cool and warm (200 -- 400 K) giant exoplanets. We can therefore use their atmospheres as proxi…
Precise Bolometric Luminosities and Effective Temperatures of 23 late-T and Y dwarfs Obtained with JWST
Samuel A. Beiler, Michael C. Cushing, J. Davy Kirkpatrick +5
We present infrared spectral energy distributions of 23 late-type T and Y dwarfs obtained with the James Webb Space Telescope. The spectral energy distributions consist of NIRSpec…
Probing the Heights and Depths of Y Dwarf Atmospheres: A Retrieval Analysis of the JWST Spectral Energy Distribution of WISE J035934.06540154.6
Harshil Kothari, Michael C. Cushing, Ben Burningham +5
We present an atmospheric retrieval analysis of the Y0 brown dwarf WISE J035934.06540154.6 using the low-resolution 0.96--12 m JWST spectrum presented in \citet{Beiler_2023}.…
The First JWST Spectral Energy Distribution of a Y dwarf
Samuel Beiler, Michael Cushing, Davy Kirkpatrick +3
We present the first JWST spectral energy distribution of a Y dwarf. This spectral energy distribution of the Y0 dwarf WISE J035934.06540154.6 consists of low-resolution (/$Δ…
-band Spectra of Young Brown Dwarfs
Samuel Beiler, Katelyn Allers, Michael Cushing +3
We present a -band (2.98--3.96m) spectroscopic study of 8 young L dwarfs with spectral types ranging from L2 to L7. Our spectra ( 250 to 600) were collected us…