Poster Abstracts

Name/Affiliation:  Francisco Paz-Chinchón (UFRN, Federal University of Rio Grande do Norte, Brazil)

Title:  Rotation Periods for Kepler Stars with Planets and KOI

We analyzed the current sample of Kepler Confirmed Planetary Host Stars and Kepler Objects of Interest (KOI) lists, to compute new photometric rotation periods and study their specific angular momentum. Lomb–Scargle periodograms and wavelet maps were analyzed for 82 planetary host confirmed sources of which rotational modulation was identified for a final sample of 46 stars, 10 of which still not have rotational measurements in the literature. KOI list was also analysed in order to cover the entire candidate list. Based on published masses and evolutionary tracks, the smaller sample (confirmed planetary hosts) is composed of M– to F–type stars (0.51 to 1.53 M?), with rotation periods covering a range between 2 and 43 days. These periods shows an excellent agreement with values for stars in common with previous works, and the observed P_rot distribution strongly agrees with expected theoretical predictions. Finally, for the 46 confirmed host sources considered here the specific angular momentum provides an important generalization of Kraft’s relation, based on photometric rotation periods.