Spectroscopy of {delta} Scuti star KIC 5988140

Using the spectrum synthesis method, we derived the fundamental parameters (T_eff_, logg, [M/H], vsini) and the abundances. Frequency analyses of both the photometric and the spectroscopic data revealed the same two dominant frequencies.

We also detected in the photometry the signal of nine more, significant frequencies located in the range 10-15c/d. The light and radial velocity curves follow a similar, stable double-wave pattern. We considered three different scenarios: binarity, co-existence of Gamma Doradus and Delta Scuti pulsations and rotational modulation.