Rotation in the Pleiades with K2. I. Data and First Results
Abstract
Young (125 Myr), populous (>1000 members), and relatively nearby, the Pleiades has provided an anchor for stellar angular momentum models for both younger and older stars. We used K2 to explore the distribution of rotation periods in the Pleiades. With more than 500 new periods for Pleiades members, we are vastly expanding the number of Pleiades with periods, particularly at the low-mass end. About 92% of the members in our sample have at least one measured spot-modulated rotation period. For the ~8% of the members without periods, non-astrophysical effects often dominate (saturation, etc.), such that periodic signals might have been detectable, all other things being equal. We now have an unusually complete view of the rotation distribution in the Pleiades. The relationship between P and (V - K_s)_0 follows the overall trends found in other Pleiades studies. There is a slowly rotating sequence for 1.1 ≾ (V - K_s)_0 ≾ 3.7 and a primarily rapidly rotating population for (V - K_s)_0 ≳ 5.0. There is a region in which there seems to be a disorganized relationship between P and (V - K_s)_0 for 3.7 ≾ (V - K_s)_0 ≾ 5.0. Paper II continues the discussion, focusing on multiperiod structures, and Paper III speculates about the origin and evolution of the period distribution in the Pleiades.
Additional Information
© 2016. The American Astronomical Society. Received 2016 April 29; revised 2016 May 31; accepted 2016 May 31; published 2016 October 11. We thank R. Stern and T. David for helpful comments on draft manuscripts. A.C.C. acknowledges support from STFC grant ST/M001296/1. Some of the data presented in this paper were obtained from the Mikulski Archive for Space Telescopes (MAST). Support for MAST for non-HST data is provided by the NASA Office of Space Science via grant NNX09AF08G and by other grants and contracts. This paper includes data collected by the Kepler mission. Funding for the Kepler mission is provided by the NASA Science Mission directorate. This research has made use of the NASA/IPAC Infrared Science Archive (IRSA), which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. This research has made use of NASA's Astrophysics Data System (ADS) Abstract Service and of the SIMBAD database, operated at CDS, Strasbourg, France. This research has made use of data products from the Two Micron All-Sky Survey (2MASS), which is a joint project of the University of Massachusetts and the Infrared Processing and Analysis Center, funded by the National Aeronautics and Space Administration and the National Science Foundation. The 2MASS data are served by the NASA/IPAC Infrared Science Archive, which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. This publication makes use of data products from the Wide-field Infrared Survey Explorer, which is a joint project of the University of California, Los Angeles, and the Jet Propulsion Laboratory/California Institute of Technology, funded by the National Aeronautics and Space Administration. Facilities: Kepler - The Kepler Mission, K2 - , Spitzer - Spitzer Space Telescope satellite, 2MASS - .Attached Files
Published - Rebull_2016_AJ_152_113.pdf
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Additional details
- Eprint ID
- 71072
- Resolver ID
- CaltechAUTHORS:20161013-153401782
- ST/M001296/1
- Science and Technology Facilities Council (STFC)
- NNX09AF08G
- NASA
- NASA/JPL/Caltech
- NSF
- Created
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2016-10-14Created from EPrint's datestamp field
- Updated
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2021-11-11Created from EPrint's last_modified field
- Caltech groups
- Infrared Processing and Analysis Center (IPAC)