Figure 1 from Accurate Atmospheric Parameters at Moderate Resolution Using Spectral Indices: Preliminary Application to the MARVELS Survey

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Accurate Atmospheric Parameters at Moderate Resolution Using Spectral Indices: Preliminary Application to the MARVELS Survey

Authors: Luan Ghezzi, Letícia Dutra-Ferreira, Diego Lorenzo-Oliveira, Gustavo F. Porto de Mello, Basílio X. Santiago, Nathan De Lee, Brian L. Lee, Luiz N. da Costa, Marcio A. G. Maia, Ricardo L. C. Ogando, John P. Wisniewski, Jonay I. González Hernández, Keivan G. Stassun, Scott W. Fleming, Donald P. Schneider, Suvrath Mahadevan, Phillip Cargile, Jian Ge, Joshua Pepper, Ji Wang, and Martin Paegert

Ghezzi et al. 2014 The Astronomical Journal 148 105.

Provider: AAS Journals

Caption: Figure 1.

Atmospheric parameters (T_eff, [Fe/H], and log g) for the 309 stars in the calibration sample (black circles) and the 30 stars in the validation sample (red squares). The intervals covered by the calibration sample are: 4800 K ≲ T_eff ≲ 6500 K, 3.60 ≲ log g ≲ 4.70, and −0.90 ≲ [Fe/H] ≲ +0.50. The calibration stars also cover the parameter space of the MARVELS sample, represented here by the validation sample.

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