TESS observations of Cepheid stars: first light results

Understand

We present the first analysis of Cepheid stars observed by the TESS space mission in Sectors 1 to 5.

• Our sample consists of 25 pulsators: ten fundamental mode, three overtone and two double-mode classical Cepheids, plus three Type II and seven anomalous Cepheids.
• The targets were chosen from fields with different stellar densities, both from the Galactic field and from the Magellanic System.
• Three targets have 2-minute cadence light curves available by the TESS Science Processing Operations Center: for the rest, we prepared custom light curves from the full-frame images with our own differential photometric FITSH pipeline.