Spectra of T dwarfs. I.

DOI

We present near-infrared spectra for a sample of T dwarfs, including 11 new discoveries made using the 2 Micron All Sky Survey. These objects are distinguished from warmer (L-type) brown dwarfs by the presence of methane absorption bands in the 1-2.5{mu}m spectral region. A first attempt at a near-infrared classification scheme for T dwarfs is made, based on the strengths of CH_4_ and H_2_O bands and the shapes of the 1.25, 1.6, and 2.1{mu}m flux peaks. Subtypes T1 VT8 V are defined, and spectral indices useful for classification are presented.

Cone search capability for table J/ApJ/564/421/table3 (2MASS IDR2 Sources Unconfirmed in Second Epoch Imaging)

Cone search capability for table J/ApJ/564/421/table6 (New T Dwarfs Identified in the 2MASS Catalog)

Cone search capability for table J/ApJ/564/421/table7 (Known T Dwarfs)

Identifier
DOI http://doi.org/10.26093/cds/vizier.15640421
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/ApJ/564/421
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/564/421
Related Identifier https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/564/421
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/ApJ/564/421
Provenance
Creator Burgasser A.J.; Kirkpatrick J.D.; Brown M.E.; Reid I.N.; Burrows A.,Liebert J.; Matthews K.; Gizis J.E.; Dahn C.C.; Monet D.G.; Cutri R.M.,Skrutskie M.F.
Publisher CDS
Publication Year 2002
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Natural Sciences; Observational Astronomy; Physics; Stellar Astronomy