Stellar Rotation in the M35 Open Cluster Using K2 Data
Abstract
The M35 open cluster is a relatively young (~150 Myr), nearby cluster, and we aim to investigate the relationship between rotation period and mass in its members. The K2 Mission conducted 70 days of high precision monitoring of a ~1 degree field centered on M35. We used K2 mission Campaign 0 data to determine the rotation periods of 968 cluster members, as identified in the GAIA second data release. We investigated several photometry methods to generate light curves for M35 objects, including aperture photometry, and point spread function (PSF) photometry using Kepler's modeled pixel response. Aperture photometry ultimately resulted in lower levels of long-term systematic light curves, and we used Lomb-Scargle periodograms to identify potential periods in the light curves of M35 Members. We investigate the relationship between rotation periods and (B-R) magnitude (as a proxy for mass), and find a slower-rotating arm with periods between 1 and 10 days for (B-R) < 1.8. These results echo those of previous studies of the similar age Pleiades cluster.
- Publication:
-
American Astronomical Society Meeting Abstracts #233
- Pub Date:
- January 2019
- Bibcode:
- 2019AAS...23324910T