First observation of Hα redshifted emission in RR Lyr - Evidence of a supersonic infalling motion of the atmosphere
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DOI: 10.1051/0004-6361/201629897
Abstract: Context. The so-called H α third emission occurs around pulsation phase ϕ = 0.30. It has been observed for the first time in 2011 in some RR Lyrae stars. The emission intensity is very weak,… read more here.
Keywords: third emission; phase; first observation; infalling motion ... See more keywords