Article
Extended Data Fig. 3 | Fourier amplitude spectra and high-resolution
spectra of high-frequency δ Scuti stars. Left panel, Fourier amplitude spectra
of 15 stars; each star has two catalogue names, as shown. Right panel,
high-resolution spectra of the stars; measured vsini values are given. The stars
are sorted by increasing vsini from top to bottom. See Methods section
‘High-resolution spectroscopy’ for details.