Primeval very low-mass stars and brown dwarfs: II. the most metal-poor substellar object
SDSS J010448.46+153501.8 has previously been classified as an sdM9.5 subdwarf. However, its very blue J − K colour (-0.15 ± 0.17) suggests a much lower metallicity compared to normal sdM9.5 subdwarfs. Here, we re-classify this object as a usdL1.5 subdwarf based on a new optical and near-infrared spe...
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| Hauptverfasser: | , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
22 February 2017
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| In: |
Monthly notices of the Royal Astronomical Society
Year: 2017, Jahrgang: 468, Heft: 1, Pages: 261-271 |
| ISSN: | 1365-2966 |
| DOI: | 10.1093/mnras/stx350 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: http://dx.doi.org/10.1093/mnras/stx350
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| Verfasserangaben: | Z.H. Zhang (张曾华), D. Homeier, D.J. Pinfield, N. Lodieu, H.R.A. Jones, F. Allard, and Ya. V. Pavlenko |
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Primeval very low-mass stars and brown dwarfs: II. the most metal-poor substellar object
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