VizieR Online Data Catalog: Infrared photometry of late-type brown dwarfs (Leggett+, 2021)
Abstract
To examine the nature of the candidate late-type brown dwarfs identified by Marocco+ (2019ApJ...881...17M) and Meisner+ (2020, J/ApJ/889/74 and 2020, J/ApJ/899/123), we obtained J-band imaging at Gemini Observatory using the Near-InfraRed Imager (NIRI) at Gemini North and FLAMINGOS-2 at Gemini South. Table 1 gives target names and Gemini program identifications spanning 2019-Dec-11 to 2020-09-17. The J filter is defined by the Maunakea Observatories (MKO) photometric system (Tokunaga+ 2002PASP..114..180T). The camera pixel scales are 0.12" for NIRI and 0.18" for FLAMINGOS-2.
We measured YJHK magnitudes for the late-T subdwarf WISEJ200520.38+542433.9, also known as Wolf 1130C, in order to have a set of near-infrared colors for a known very metal-poor object with [m/H]~-0.75. The data were obtained using NIRI at Gemini North. We also used VVVX ESO Public Survey data to determine the J magnitude for CWISE J092503.20-472013.8. In addition, we searched for detections in the UKIDSS and VISTA surveys' imaging data for Y dwarfs without near-infrared photometry. Finally, we obtained K-band images of WISEJ064723.23-623235.5. We used the adaptive optics imager GSAOI at Gemini South. See Section 2.3. Besides, we revised WISE and Spitzer photometry for 15 brown dwarfs. See Section 2.4. (7 data files).- Publication:
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VizieR Online Data Catalog
- Pub Date:
- January 2023
- Bibcode:
- 2023yCat..19180011L
- Keywords:
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- Stars: brown dwarf;
- Photometry: infrared;
- Spectral types;
- Effective temperatures;
- References