Seventy-One New L and T Dwarfs from the Sloan Digital Sky Survey

Abstract

We present near-infrared observations of 71 newly discovered L and T dwarfs, selected from imaging data of the Sloan Digital Sky Survey (SDSS) using the i-dropout technique. Sixty-five of these dwarfs have been classified spectroscopically according to the near-infrared L dwarf classification scheme of Geballe et al. and the unified T dwarf classification scheme of Burgasser et al. The spectral types of these dwarfs range from L3 to T7, and include the latest types yet found in the SDSS. Six of the newly identified dwarfs are classified as early- to mid-L dwarfs according to their photometric near-infrared colors, and two others are classified photometrically as M dwarfs. We also present new near-infrared spectra for five previously published SDSS L and T dwarfs, and one L dwarf and one T dwarf discovered by Burgasser et al. from the Two Micron All Sky Survey. The new SDSS sample includes 27 T dwarfs and 30 dwarfs with spectral types spanning the complex L-T transition (L7-T3). We continue to see a large (~0.5 mag) spread in J-H for L3 to T1 types, and a similar spread in H-K for all dwarfs later than L3. This color dispersion is probably due to a range of grain sedimentation properties, metallicity, and gravity. We also find L and T dwarfs with unusual colors and spectral properties that may eventually help to disentangle these effects.

accepted by AJ, 18 pages, 10 figures, 5 tables, emulateapj layout

References in corpus (44)

• The Sloan Digital Sky Survey: Technical Summary
• The Sloan Digital Sky Survey Photometric Camera
• The u'g'r'i'z' Standard Star Network
• The Second Data Release of the Sloan Digital Sky Survey
• A Method of Correcting Near-Infrared Spectra for Telluric Absorption
• Spectroscopic Target Selection in the Sloan Digital Sky Survey: The Quasar Sample
• A Survey of z>5.8 Quasars in the Sloan Digital Sky Survey I: Discovery of Three New Quasars and the Spatial Density of Luminous Quasars at z~6
• Astrometric Calibration of the Sloan Digital Sky Survey
• A Survey of z>5.7 Quasars in the Sloan Digital Sky Survey II: Discovery of Three Additional Quasars at z>6
• A photometricity and extinction monitor at the Apache Point Observatory
• Sixty-seven Additional L Dwarfs Discovered by the Two Micron All Sky Survey (2MASS)
• Near-Infrared Photometry and Spectroscopy of L and T Dwarfs: the Effects of Temperature, Clouds, and Gravity
• A Unified Near Infrared Spectral Classification Scheme for T Dwarfs
• L' and M' Photometry of Ultracool Dwarfs
• Towards Spectral Classification of L and T Dwarfs: Infrared and Optical Spectroscopy and Analysis
• A Modified Magnitude System that Produces Well-Behaved Magnitudes, Colors, and Errors Even for Low Signal-to-Noise Ratio Measurements
• Characterization of M,L and T dwarfs in the Sloan Digital Sky Survey
• The Spectra of T Dwarfs I: Near-Infrared Data and Spectral Classification
• Binarity in Brown Dwarfs: T Dwarf Binaries Discovered with the Hubble Space Telescope WPFC2
• The Mauna Kea Observatories Near-Infrared Filter Set. II. Specifications for a New JHKL'M' Filter Set for Infrared Astronomy
• High-Redshift Quasars Found in Sloan Digital Sky Survey Commissioning Data IV: Luminosity Function from the Fall Equatorial Stripe Sampl
• A Survey of z>5.7 Quasars in the Sloan Digital Sky Survey III: Discovery of Five Additional Quasars
• L and T Dwarf Models and the L to T Transition
• The 2MASS Wide-Field T Dwarf Search. III. Seven New T Dwarfs and Other Cool Dwarf Discoveries
• Infrared Photometry of Late-M, L, and T Dwarfs
• Multiplicity of Nearby Free-floating Ultra-cool Dwarfs: a HST-WFPC2 search for companions
• JHK Standard Stars for Large Telescopes: the UKIRT Fundamental and Extended Lists
• The Discovery of a Luminous z=5.80 Quasar from the Sloan Digital Sky Survey
• Evidence for Cloud Disruption in the L/T Dwarf Transition
• The Missing Link: Early Methane ("T") Dwarfs in the Sloan Digital Sky Survey
• The Mauna Kea Observatories Near-Infrared Filter Set. I: Defining Optimal 1-5 $\mu$m Bandpasses
• The Discovery of a Field Methane Dwarf from Sloan Digital Sky Survey Commissioning Data
• Epsilon Indi Ba/Bb: the nearest binary brown dwarf
• High-Redshift Quasars Found in Sloan Digital Sky Survey Commissioning Data
• L Dwarfs Found in Sloan Digital Sky Survey Commissioning Imaging Data
• T Dwarfs and the Substellar Mass Function. I. Monte Carlo Simulations
• The Discovery of a Second Field Methane Brown Dwarf from Sloan Digital Sky Survey Commissioning Data
• The Substellar Mass Function: A Bayesian Approach
• Kelu-1 is a Binary L Dwarf: First Brown Dwarf Science from Laser Guide Star Adaptive Optics
• The Solar Neighborhood IX: Hubble Space Telescope Detections of Companions to Five M and L Dwarfs within 10 pc of the Sun
• Transition from L to T Dwarfs on the Color-Magnitude Diagram
• SDSS J042348.57-041403.5AB: A Brown Dwarf Binary Straddling the L/T Transition
• Five High-Redshift Quasars Discovered in Commissioning Imaging Data of the Sloan Digital Sky Survey
• L Dwarfs Found in Sloan Digital Sky Survey Commissioning Data II. Hobby-Eberly Telescope Observations

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