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Showing 2021 · astro-ph.SRShow all
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astro-ph.SR2021★ 22 cited
New infrared spectral indices of luminous cold stars: from early K to M-types
Maria Messineo, Donald F. Figer, Rolf-Peter Kudritzki +4
We present infrared spectral indices (1.0-2.3 um) of Galactic late-type giants and red supergiants (RSGs). We used existing and new spectra obtained at resolution power R=2000 with…
astro-ph.SR2021★ 15 cited
VVV-WIT-08: the giant star that blinked
Leigh C. Smith, Sergey E. Koposov, Philip W. Lucas +11
We report the serendipitous discovery of a late-type giant star that exhibited a smooth, eclipse-like drop in flux to a depth of 97 per cent. Minimum flux occurred in April 2012 an…