The roAp stars observed by the Kepler Space Telescope

TL;DR

This paper reviews the observations of rapidly oscillating Ap (roAp) stars by the Kepler Space Telescope, highlighting the discovery of new stars, data analysis, and future prospects with TESS.

Contribution

It provides the first comprehensive summary of Kepler's observations of roAp stars, including new discoveries and insights into their pulsations.

Findings

Kepler observed at least 14 new and known roAp stars.

The data set offers detailed pulsation information for these stars.

Future TESS observations will expand on these findings.

Abstract

Before the launch of the Kepler Space Telescope, most studies of the rapidly oscillating Ap (roAp) stars were conducted with ground-based photometric $B$ observations, supplemented with high-resolution time-resolved spectroscopy and some space observations with the WIRE, MOST and BRITE satellites. These modes of observation often only provided information on a single star at a time, however, Kepler provided the opportunity to observe hundreds of thousands of stars simultaneously. Over the duration of the primary 4-yr Kepler mission, and its 4-yr reconfigured K2 mission, the telescope observed at least 14 new and known roAp stars. This paper provides a summary the results of these observations, including a first look at the entire data sets, and provides a look forward to NASA's TESS mission.