VizieR Online Data Catalog: Analysis of the NIR spectra of neighboring L dwarfs (Cruz+, 2018)
Abstract
Our campaign to obtain spectroscopy of L dwarfs was initiated as part of our effort to complete the 20 pc census of nearby ultracool dwarfs using 2MASS. Photometric selection criteria were used to identify candidate nearby ultracool dwarfs in the 2MASS catalog (Cat. II/246). The selection criteria and sample creation are described extensively in Papers V (Cruz et al. 2003, J/AJ/126/2421), IX (Cruz et al., 2007, J/AJ/133/439), and X (Reid et al. 2008, J/AJ/136/1290). Candidate objects were targeted for far-red optical and/or near-infrared spectroscopic follow-up to obtain spectral types and photometric distances. During these observing runs, we also targeted confirmed nearby M and L dwarfs from the literature that lacked optical and/or NIR spectra. The far-red optical observations were obtained with several different instruments but we restrict the analysis in this paper to objects with NIR data obtained with the SpeX spectrograph (Rayner et al. 2003PASP..115..362R) on the 3 m NASA Infrared Telescope Facility using the low-resolution prism mode. We have combined new SpeX prism data, new optical data, and extant spectra from the literature to create a sample of 171 L dwarfs with both far-red optical (6000-9000 Å) and low-resolution SpeX prism spectra (0.85-2.4 μm), which we refer to collectively as the "optical-NIR sample".
(6 data files).- Publication:
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VizieR Online Data Catalog
- Pub Date:
- September 2018
- DOI:
- 10.26093/cds/vizier.51550034
- Bibcode:
- 2018yCat..51550034C
- Keywords:
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- Stars: nearby;
- Stars: brown dwarf;
- Stars: L-type;
- Spectral types;
- Photometry: infrared