How much can we trust high-resolution spectroscopic stellar atmospheric parameters?

Autor:	Blanco-Cuaresma, S., Nordlander, T., Heiter, U., Jofré, P., Masseron, T., Casamiquela, L., Tabernero, H. M., Bhat, S. S., Casey, A. R., Meléndez, J., Ramírez, I.
Rok vydání:	2016
Předmět:	Astrophysics - Solar and Stellar Astrophysics Astrophysics - Instrumentation and Methods for Astrophysics
Druh dokumentu:	Working Paper
DOI:	10.5281/zenodo.155115
Popis:	The determination of atmospheric parameters depends on the use of radiative transfer codes (among other elements such as model atmospheres) to compute synthetic spectra and/or derive abundances from equivalent widths. However, it is common to mix results from different surveys/studies where different setups were used to derive the parameters. These inhomogeneities can lead us to inaccurate conclusions. In this work, we studied one aspect of the problem: When deriving atmospheric parameters from high-resolution stellar spectra, what differences originate from the use of different radiative transfer codes? Comment: To appear in the 19th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun proceeding
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1609.08092 Zobrazit plný text záznamu View this record from Arxiv