THE PHYSICAL MECHANISM BEHIND M DWARF METALLICITY INDICATORS AND THE ROLE OF C AND O ABUNDANCES

ABSTRACT We present near-infrared (NIR) synthetic spectra based on PHOENIX stellar atmosphere models of typical early and mid-M dwarfs with varied C and O abundances. We apply multiple recently published methods for determining M dwarf metallicity to our models to determine the effects of C and O ab...

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Veröffentlicht in:	The Astrophysical journal 2016-09, Vol.828 (2), p.95-95
Hauptverfasser:	Veyette, Mark J., Muirhead, Philip S., Mann, Andrew W., Allard, France
Format:	Artikel
Sprache:	eng
Schlagworte:	Astronomical models ASTROPHYSICS, COSMOLOGY AND ASTRONOMY Atmospheric models brown dwarfs CARBON Chemical evolution CORRELATIONS DWARF STARS ELEMENT ABUNDANCE ENERGY SPECTRA Indicators MASS METALLICITY METALS NEAR INFRARED RADIATION OXYGEN COMPOUNDS Red dwarf stars RESOLUTION Sciences of the Universe SPECTRA STAR EVOLUTION STARS stars: abundances stars: atmospheres stars: fundamental parameters stars: late-type stars: low-mass STELLAR ATMOSPHERES Tracers VARIATIONS
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