Optical spectroscopy of Galactic field classical Be stars
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DOI: 10.1093/mnras/staa3469
Abstract: In this study, we analyze the emission lines of different species present in 118 Galactic field classical Be stars in the wavelength range of 3800 - 9000 A. We re-estimated the extinction parameter (A$_V$) for… read more here.
Keywords: galactic field; field classical; classical stars; spectroscopy ... See more keywords
Standard Galactic field RR Lyrae II: a Gaia DR2 calibration of the period–Wesenheit–metallicity relation
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DOI: 10.1093/mnras/stz2814
Abstract: RR Lyrae stars have long been popular standard candles, but significant advances in methodology and technology have been made in recent years to increase their precision as distance indicators. We present multiwavelength (optical UBVRcIc and… read more here.
Keywords: galactic field; field lyrae; period; wesenheit metallicity ... See more keywords