Publications (17)
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 (/$…
Science Impacts of the SPHEREx All-Sky Optical to Near-Infrared Spectral Survey: Report of a Community Workshop Examining Extragalactic, Galactic, Stellar and Planetary Science
Olivier Doré, Michael W. Werner, Matt Ashby +65
SPHEREx is a proposed SMEX mission selected for Phase A. SPHEREx will carry out the first all-sky spectral survey and provide for every 6.2" pixel a spectra between 0.75 and 4.18 $…
Silicate Precursor Silane detected in Cold Low-Metallicity Brown Dwarf
Jacqueline K. Faherty, Aaron M. Meisner, Ben Burningham +28
Within 20 pc of the Sun there are currently 29 known cold brown dwarfs, sources with measured distances and an estimated effective temperature between that of Jupiter (170K) and ~5…
Discovery of Cold Brown Dwarfs or Free-Floating Giant Planets Close to the Sun
Sandy K. Leggett, Daniel Apai, Adam Burgasser +9
This White Paper describes the opportunities for discovery of Jupiter-mass objects with 300K atmospheres. The discovery and characterization of such cold objects is vital for under…
Science Impacts of the SPHEREx All-Sky Optical to Near-Infrared Spectral Survey II: Report of a Community Workshop on the Scientific Synergies Between the SPHEREx Survey and Other Astronomy Observatories
Olivier Doré, Michael W. Werner, Matthew L. N. Ashby +60
SPHEREx is a proposed NASA MIDEX mission selected for Phase A study. SPHEREx would carry out the first all-sky spectral survey in the near infrared. At the end of its two-year miss…
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…
Toward the End of Stars: Discovering the Galaxy's Coldest Brown Dwarfs
Adam J. Burgasser, Josh Bloom, Kelle Cruz +9
This White Paper to the National Academy of Sciences Astro2010 Decadal Review Committee highlights cross-disciplinary science opportunities over the next decade with cold brown dwa…
-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 collecte…
A 3 Gyr White Dwarf with Warm Dust Discovered via the Backyard Worlds: Planet 9 Citizen Science Project
John H. Debes, Melina Thevenot, Marc Kuchner +15
Infrared excesses due to dusty disks have been observed orbiting white dwarfs with effective temperatures between 7200 K and 25000 K, suggesting that the rate of tidal disruption o…
Photometric Monitoring of the Coldest Known Brown Dwarf with the Spitzer Space Telescope
Taran Esplin, Kevin Luhman, Michael Cushing +4
Because WISE J085510.83071442.5 (hereafter WISE 0855-0714) is the coldest known brown dwarf ( K) and one of the Sun's closest neighbors (2.2 pc), it offers a unique opp…
Fast Outflows in Hot Dust-Obscured Galaxies with Keck/NIRES
Luke Finnerty, Kirsten Larson, B. T. Soifer +10
We present rest-frame optical spectroscopic observations of 24 Hot Dust-Obscured Galaxies (Hot DOGs) at redshifts 1.7-4.6 with KECK/NIRES. Our targets are selected based on their e…
Near-infrared Thermal Emission Detections of a number of hot Jupiters and the Systematics of Ground-based Near-infrared Photometry
Bryce Croll, Loic Albert, Ray Jayawardhana +7
We present detections of the near-infrared thermal emission of three hot Jupiters and one brown-dwarf using the Wide-field Infrared Camera (WIRCam) on the Canada-France-Hawaii Tele…
The Gemini NICI Planet-Finding Campaign : Discovery of a Substellar L Dwarf Companion to the Nearby Young M Dwarf CD-35 2722
Zahed Wahhaj, Michael C. Liu, Beth A. Biller +23
We present the discovery of a wide (67 AU) substellar companion to the nearby (21 pc) young solar-metallicity M1 dwarf CD-35 2722, a member of the ~100 Myr AB Doradus association.…
Broad emission lines in optical spectra of hot dust-obscured galaxies can contribute significantly to JWST/NIRCam photometry
Jed McKinney, Luke Finnerty, Caitlin Casey +13
Selecting the first galaxies at z>7-10 from JWST surveys is complicated by z<6 contaminants with degenerate photometry. For example, strong optical nebular emission lines at z<6 ma…
SpeX Spectroscopy of Unresolved Very Low-Mass Binaries. I. Identification of Seventeen Candidate Binaries Straddling the L Dwarf/T Dwarf Transition
Adam J. Burgasser, Kelle L. Cruz, Michael Cushing +5
We report the identification of 17 candidate brown dwarf binaries whose components straddle the L dwarf/T dwarf transition. These sources were culled from a large near-infrared spe…
Masses, Radii, and Cloud Properties of the HR 8799 Planets
Mark S. Marley, Didier Saumon, Michael Cushing +3
The near-infrared colors of the planets directly imaged around the A star HR 8799 are much redder than most field brown dwarfs of the same effective temperature. Previous theoretic…
Studying the Physical Diversity of Late-M Dwarfs with Dynamical Masses
Trent Dupuy, Michael Liu, Brendan Bowler +4
We present a systematic study of the physical properties of late-M dwarfs based on high-quality dynamical mass measurements and near-infrared (NIR) spectra. We use astrometry from…