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• W3216804902 endingPage "A194" @default.
• W3216804902 startingPage "A194" @default.
• W3216804902 abstract "Deriving metallicities for solar-like stars follows well-established methods, but for cooler stars such as M dwarfs, the determination is much more complicated due to forests of molecular lines that are present. Several methods have been developed in recent years to determine accurate stellar parameters for these cool stars ($T_{rm eff} lesssim$ 4000 K). However, significant differences can be found at times when comparing metallicities for the same star derived using different methods. In this work, we determine the effective temperatures, surface gravities, and metallicities of 18 well-studied M dwarfs observed with the CARMENES high-resolution spectrograph following different approaches, including synthetic spectral fitting, analysis of pseudo-equivalent widths, and machine learning. We analyzed the discrepancies in the derived stellar parameters, including metallicity, in several analysis runs. Our goal is to minimize these discrepancies and find stellar parameters that are more consistent with the literature values. We attempted to achieve this consistency by standardizing the most commonly used components, such as wavelength ranges, synthetic model spectra, continuum normalization methods, and stellar parameters. We conclude that although such modifications work quite well for hotter main-sequence stars, they do not improve the consistency in stellar parameters for M dwarfs, leading to mean deviations of around 50-200 K in temperature and 0.1-0.3 dex in metallicity. In particular, M dwarfs are much more complex and a standardization of the aforementioned components cannot be considered as a straightforward recipe for bringing consistency to the derived parameters. Further in-depth investigations of the employed methods would be necessary in order to identify and correct for the discrepancies that remain." @default.
• W3216804902 created "2021-12-06" @default.
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• W3216804902 date "2022-02-01" @default.
• W3216804902 modified "2023-10-16" @default.
• W3216804902 title "Metallicities in M dwarfs: Investigating different determination techniques" @default.
• W3216804902 cites W1531115531 @default.
• W3216804902 cites W1596696233 @default.
• W3216804902 cites W1670318221 @default.
• W3216804902 cites W1896773212 @default.
• W3216804902 cites W1903699604 @default.
• W3216804902 cites W1971519595 @default.
• W3216804902 cites W1982576349 @default.
• W3216804902 cites W1993159000 @default.
• W3216804902 cites W2001265656 @default.
• W3216804902 cites W2014268383 @default.
• W3216804902 cites W2015795623 @default.
• W3216804902 cites W2019030320 @default.
• W3216804902 cites W2019132911 @default.
• W3216804902 cites W2031043816 @default.
• W3216804902 cites W2059895064 @default.
• W3216804902 cites W2068012642 @default.
• W3216804902 cites W2080769070 @default.
• W3216804902 cites W2089265399 @default.
• W3216804902 cites W2092837737 @default.
• W3216804902 cites W2110349209 @default.
• W3216804902 cites W2113074944 @default.
• W3216804902 cites W2113864186 @default.
• W3216804902 cites W2117914263 @default.
• W3216804902 cites W2118020555 @default.
• W3216804902 cites W2122728645 @default.
• W3216804902 cites W2140137154 @default.
• W3216804902 cites W2157805129 @default.
• W3216804902 cites W2159461336 @default.
• W3216804902 cites W2161459806 @default.
• W3216804902 cites W2162397523 @default.
• W3216804902 cites W2168442220 @default.
• W3216804902 cites W2171744771 @default.
• W3216804902 cites W2180056939 @default.
• W3216804902 cites W2421814810 @default.
• W3216804902 cites W2517381349 @default.
• W3216804902 cites W2562509201 @default.
• W3216804902 cites W2757022617 @default.
• W3216804902 cites W2786914686 @default.
• W3216804902 cites W2798336535 @default.
• W3216804902 cites W2899497983 @default.
• W3216804902 cites W2905061081 @default.
• W3216804902 cites W2908707464 @default.
• W3216804902 cites W2949380767 @default.
• W3216804902 cites W2955424691 @default.
• W3216804902 cites W2962503469 @default.
• W3216804902 cites W3000257087 @default.
• W3216804902 cites W3000704192 @default.
• W3216804902 cites W3005769679 @default.
• W3216804902 cites W3006858088 @default.
• W3216804902 cites W3046001029 @default.
• W3216804902 cites W3096406960 @default.
• W3216804902 cites W3096950602 @default.
• W3216804902 cites W3099524604 @default.
• W3216804902 cites W3100263500 @default.
• W3216804902 cites W3100312073 @default.
• W3216804902 cites W3100884801 @default.
• W3216804902 cites W3101015041 @default.
• W3216804902 cites W3101413008 @default.
• W3216804902 cites W3101708530 @default.
• W3216804902 cites W3102704451 @default.
• W3216804902 cites W3104495037 @default.
• W3216804902 cites W3104852701 @default.
• W3216804902 cites W3105231016 @default.
• W3216804902 cites W3105302095 @default.
• W3216804902 cites W3105496285 @default.
• W3216804902 cites W3105716763 @default.
• W3216804902 cites W3111767530 @default.
• W3216804902 cites W3124964518 @default.
• W3216804902 cites W3134243464 @default.
• W3216804902 cites W3158680365 @default.
• W3216804902 cites W3165984523 @default.
• W3216804902 cites W3186364484 @default.
• W3216804902 cites W3203956987 @default.

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