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Poster Open Access

Stellar Parameters Via Spectrum Synthesis Of APOGEE DR 16 H-band Spectra Of M Dwarf Stars

Rojas-Ayala, Bárbara

We present a method to derive stellar parameters for M dwarfs using high-resolution H-band spectra via spectrum synthesis using iSpec, Turbospectrum, MARCS models atmospheres, and a custom-made line list including over 1000000 water lines (Sarmento et al. 2021). The method was developed to provide reliable spectroscopic parameters from the spectra of current and future NIR high-resolution spectrographs. We derived the spectroscopic parameters (Teff, [M/H], log g) for a sample of 313 M dwarfs in the APOGEE DR16 and compared them to the ones obtained by ASPCAP and previous values derived from NIR and optical data.

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