Fundamental Parameters of the Eclipsing Binary DD CMa and Evidence for Mass Exchange

We present a detailed photometric and spectroscopic analysis of DD CMa, based on published survey photometry and new spectroscopic data. We find an improved orbital period of P o = 2.0084530(6) days. Our spectra reveal H β and H α absorptions with weak emission shoulders, and we also find a color ex...

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Veröffentlicht in:	The Astronomical journal 2021-04, Vol.161 (4), p.165
Hauptverfasser:	Rosales, J. A., Mennickent, R. E., Djurašević, G., González, J. F., Araya, I., Cabezas, M., Schleicher, D. R. G., Curé, M.
Format:	Artikel
Sprache:	eng
Schlagworte:	ABSORPTION Astronomy ASTROPHYSICS, COSMOLOGY AND ASTRONOMY B stars Binary stars Circular orbits CONFIGURATION EMISSION Emissions Exchanging H alpha line HEAT EXCHANGERS Infrared astronomy Infrared photometry Infrared signatures INFRARED SURVEYS Light curve ORBITS OTHER INSTRUMENTATION PHOTOMETRY SPECTRA Spectroscopic analysis STARS Stellar envelopes Stellar spectra Wide-field Infrared Survey Explorer
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