New variable star 66.1907 Leonis
نویسندگان
چکیده
منابع مشابه
Rapid magnetic flux variability on the flare star CN Leonis
We present UVES/VLT observations of the nearby flare star CN Leo covering the Wing-Ford FeH band near 1 μm with high spectral resolution. Some of the FeH absorption lines in this band are magnetically sensitive and allow a measurement of the mean magnetic flux on CN Leo. Our observations, covering three nights separated by 48 hours each, allow a clear detection of a mean magnetic field of B f ≈...
متن کاملLuminous Red Variable Star
We report photometry and spectroscopy of the evolution of Nova Sagittarii 1994 #1 (V4332 Sagittarii) during outburst. We compare the photometric and spectral evolution of this outburst to known classes of outbursts – including classical novae and outbursts occurring on symbiotic stars – and find this object does not conform to any known class of outburst. The closest match to the behavior of th...
متن کاملThe metallicity of μ Leonis
Castro et al. (1996) have concluded that μ Leo has three times the solar metallicity. That conclusion is based on their own work and on rezeroed values of [Fe/H] from the literature. A review of their paper reveals that there are significant omissions from their list of literature results. In addition, their procedure for establishing zero points for values of [Fe/H] is found to be fallacious. ...
متن کاملLeonis a superoutbursting intermediate polar ?
We present an XMM-Newton analysis of the cataclysmic variable T Leo. The X-ray light curve shows sinusoidal variation on a period Px equal to 0.89+0.14 −0.10 times the previously spectroscopically determined orbital period. Furthermore, we find a signal in the power spectrum at 414 sec that could be attributed to the spin period of the white dwarf. If true, T Leo would be the first confirmed su...
متن کاملA new abundance analysis of the super-metal-rich K2 giant, μ Leonis
Spectra of the super-metal-rich K2 giant, μ Leonis, have been recorded at high resolution (λ/∆λ ' 105) and with signal/noise ' 200, in selected regions between 5250 and 8810 Å. An LTE model atmospheres analysis of these spectra, with particular attention to blending by CN molecular lines, suggests that the wings of strong lines and the full profiles of intermediate strength lines are consistent...
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ژورنال
عنوان ژورنال: Astronomische Nachrichten
سال: 1907
ISSN: 0004-6337,1521-3994
DOI: 10.1002/asna.19071751508