A young stellar group associated with HD 199143 (d=48 pc)
We present new optical and ultraviolet spectroscopy of the anomalous EUV emitter HD 199143 (F8V). High resolution spectra in the Halpha and Na I D wavelength regions show evidence for very rapid (a few hundred km/s) rotation of the stellar photosphere. Using archive IRAS data we also show that the star has excess emission above photospheric levels
van den Ancker, M. E. et al.
Fecha de publicación:
11
2000