K2 observations of the exoplanet-host star HD 212771
A requirement of our model is that ~40 per cent of main-sequence stars more massive than. ~4.5 Mq must either have magnetic fields in the range of ~ 10-100 G, ...
High-resolution spectroscopy of Vega-like stars - UCL DiscoveryPhotometry and spectroscopy of circumstellar dust in main-sequence stars are powerful tools with which to study extrasolar planetary material. A central ... Discovery of a low-mass companion to the F7V star HD 984We highlight differences in spectral types and intrinsic colors observed in pre-main sequence (pre-MS) stars. Spectral types of pre-MS stars are wavelength- ... The initial spin distribution of B-type stars - Research ExplorerSpectral types as in Table 1 are distinguished by symbols: blue squares. (F-type), green triangles (G-type) and red diamonds (K-type). The solid line in both ...
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