Independent study and spectral classification of a sample of poorly studied high proper motion M-dwarf candidate stars

Cabello, C. and Csörnyei, Géza and Merc, J. and Ferreirós, Lopez V. and Pessev, P. (2019) Independent study and spectral classification of a sample of poorly studied high proper motion M-dwarf candidate stars. CONTRIBUTIONS OF THE ASTRONOMICAL OBSERVATORY SKALNATE PLESO, 49. pp. 546-550. ISSN 1335-1842

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Abstract

We report an independent spectral classification of a sample of poorly studied M-dwarf candidate stars observed with the OSIRIS instrument a GTC. Our project was carried out as an independent test of the spectra classification. It is crucial for the studies of extrasolar planet orbiting M-dwarfs, since properties of the host star are directl related to understanding the planet properties and possibl habitability. Understanding of the statistical properties of the dwar stars is also crucial for the Simple Stellar Population models that pla a major role in the modern astrophysics. Hα emission was detected in 33 of the sample with evidence of Hα variability in one object

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