Is There a Substellar Object Orbiting the Solar-like Stable Contact Binary V2284 Cyg?
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DOI: 10.1088/1538-3873/aa8bb0
Abstract: V2284 Cyg is a neglected W UMa-type binary star for photometric investigations. Monitored by the Kepler Space Telescope from 2009 to 2013, its light curves are continuously stable, suggesting that both components are inactive during… read more here.
Keywords: cyg; substellar object; contact binary; v2284 cyg ... See more keywords
Primeval very low-mass stars and brown dwarfs -- II. The most metal-poor substellar object
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DOI: 10.1093/mnras/stx350
Abstract: SDSS J010448.46+153501.8 has previously been classified as an sdM9.5 subdwarf. However, its very blue $J-K$ colour ($-0.15 \pm 0.17$) suggests a much lower metallicity compared to normal sdM9.5 subdwarfs. Here, we re-classify this object as… read more here.
Keywords: sdss j010448; substellar object; metal poor; mass ... See more keywords