What CoRoT tells us about Scuti stars: Existence of a regular pattern and seismic indices to characterize stars Michel, Eric Dupret, Marc-Antoine Reese, Daniel Ouazzani, Rhita-Maria Debosscher, Jonas García Hernández, Antonio Belkacem, Kevin Samadi, Reza Salmon, Sébastien Suárez Yanes, Juan Carlos Barceló Forteza, Sebatiá Inspired by the so appealing example of red giants, where going from a handful of stars to thousands revealed the structure of the eigenspectrum, we inspected a large homogeneous set of around 1860 {\delta} Scuti stars observed with CoRoT. This unique data set reveals a common regular pattern which appears to be in agreement with island modes featured by theoretical non-perturbative treatments of fast rotation. The comparison of these data with models and linear stability calculations suggests that spectra can be fruitfully characterized to first order by a few parameters which might play the role of seismic indices for {\delta} Scuti stars, as {\Delta \nu} and {\nu_{max}} do for red giants. The existence of this pattern offers an observational support for guiding further theoretical works on fast rotation. It also provides a framework for further investigation of the observational material collected by CoRoT and Kepler. Finally, it sketches out the perspective of using {\delta} Scuti stars pulsations for ensemble asteroseismology. 2018-07-06T09:47:12Z 2018-07-06T09:47:12Z 2017 info:eu-repo/semantics/article Michel, Eric. et. al. What CoRoT tells us about Scuti stars: Existence of a regular pattern and seismic indices to characterize stars. EPJ Web of Conferences 160, 03001 (2017) Seismology of the Sun and the Distant Stars II [http://hdl.handle.net/10481/52135] http://hdl.handle.net/10481/52135 10.1051/epjconf/201716003001 eng info:eu-repo/grantAgreement/EC/FP7/312844 http://creativecommons.org/licenses/by/3.0/es/ info:eu-repo/semantics/openAccess Atribución 3.0 España EDP Sciences