Photometry of cool stars detected in extreme-ultraviolet (EUV) all-sky surveys.

Details Photometry of cool stars detected in extreme-ultraviolet (EUV) all-sky surveys. Photometry of cool stars detected in extreme-ultraviolet (EUV) all-sky surveys.

May 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995a%26a...297..764c&link_type=abstract

Astronomy and Astrophysics, v.297, p.764

Astronomy and Astrophysics

Astrophysics

16

Stars: Activity, Stars: Late-Type, Stars: Variables, X Ray: Stars, Ultraviolet: Stars

Scientific paper

We present high-precision UBV(RI)_c_ photometry for a small sample of cool stars detected at EUV wavelengths by the ROSAT WFC and/or the EUVE all-sky survey. Four out of the five stars observed are variable and one of them is an eclipsing binary. Amplitudes up to 0.38 magnitudes in the V band have been observed and clear colour variations have been found. We have computed the photometric periods and deduced approximate spectral classifications and distances.

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