no code implementations • 2 Dec 2020 • Tobias K. Fritz, Lee Patrick, Anja Feldmeier-Krause, Rainer Schödel, Mathias Schultheis, Ortwin Gerhard, Govind Nandakumar, Nadine Neumayer, Francisco Nogueras-Lara, M. Almudena Prieto
We use 183 giant stars for calibration spanning in metallicity from -2. 5 to 0. 6 dex and covering temperatures of up to 5500 K. The derived index based metallicities deviate from the calibration values with a scatter of 0. 32 dex.
Astrophysics of Galaxies Solar and Stellar Astrophysics
no code implementations • 8 May 2020 • Grzegorz Gajda, Ortwin Gerhard, Matías Blaña, Ling Zhu, Juntai Shen, Roberto P. Saglia, Ralf Bender
The formation of the bar lead to the re-arrangement of the [Z/H] distribution, causing a flat gradient along the bar.
Astrophysics of Galaxies
