noaoann11004 — Announcement

First Results from The Kepler Cluster Study

20 April 2011

The Kepler Cluster Study (PI: Søren Meibom, Harvard-Smithsonian CfA) is a program to search for planets around members of 4 open star clusters in the field of view of NASA’s Kepler mission, and to study the relationships between stellar rotation, age and mass. “Ground-based observations in young (~< 600 million years) open clusters, using NOAO facilities (WIYN 3.5m, the WIYN 0.9m, the CTIO Blanco 4m, and CTIO 1m), have suggested to us that a well-defined relationship exist between the rotation periods, ages, and colors of late-type stars”, says Meibom, “and that observations of such stars in older clusters can define a surface in the 3-dimensional space of rotation, color (mass), and age (figure 1, left). Now, using Kepler, Meibom and his colleagues have extended this surface to 1 billion years by measuring the relation between rotation and color for members of the open cluster NGC6811 (figure 2, right).


About the Announcement



First Results from The Kepler Cluster Study
First Results from The Kepler Cluster Study