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Revisiting ϵ Eridani with NEID: Identifying New Activity-sensitive Lines in a Young K Dwarf Star

  • Authors: Sarah Jiang, Arpita Roy, Samuel Halverson, Chad F. Bender, Carlos Selgas, O. Justin Otor, Suvrath Mahadevan, Guđmundur Stefánsson, Ryan C. Terrien, Christian Schwab

Sarah Jiang et al 2024 The Astronomical Journal 167 .

  • Provider: AAS Journals

Caption: Figure 8.

Correlations between line depth, FWHM, and integrated flux and S-index for each of the five lines that we found to be strongly correlated with the S-index in all three of our measured line parameters, which also appear in the line list published by Wise et al. (2018). While Wise et al. (2018) found these lines to be correlated with the S-index in line core flux (analogous to line depth), we further confirmed these lines are also sensitive to activity in other parameters (FWHM and integrated flux).

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