Astronomy and Astrophysics – Astrophysics
Scientific paper
2002-05-17
Astronomy and Astrophysics
Astrophysics
Accepted for publication in the Astrophysical Journal. 35 pages including 7 figures
Scientific paper
10.1086/341893
We report new measures of radial velocities and rotation rates (v sin i) for 51 F and early-G stars in the open cluster NGC2516, and combine these with previously published data. From high signal-to-noise spectra of two stars, we show that NGC2516 has a relative iron abundance with respect to the Pleiades of delta([Fe/H])= +0.04 +/- 0.07 at the canonical reddening of E(B - V) = 0.12, in contrast to previous photometric studies that placed the cluster 0.2 to 0.4 dex below solar. We construct a color-magnitude diagram based on radial velocity members, and explore the sensitivity of photometric determinations of the metallicity and distance to assumed values of the reddening. For a metal abundance near solar, the Hipparcos distance to NGC2516 is probably underestimated. Finally, we show that the distribution of rotation rates and X-ray emission does not differ greatly from that of the Pleiades, when allowance is made for the somewhat older age of NGC2516.
Ford Alison
Jeffries Robin D.
Pinsonneault Marc
Sills Alison
Stauffer John R.
No associations
LandOfFree
Rotation and activity in the solar-metallicity open cluster NGC2516 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Rotation and activity in the solar-metallicity open cluster NGC2516, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotation and activity in the solar-metallicity open cluster NGC2516 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-652894