New Members of the Scorpius Centaurus Complex and Ages of its sub-regions

Details New Members of the Scorpius Centaurus Complex and Ages of its sub-regions New Members of the Scorpius Centaurus Complex and Ages of its sub-regions

2012-04-25

arxiv.org/abs/1204.5715v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

3 figures, accepted in AJ

Scientific paper

We have spectroscopically identified ?about 100 G-, K- and M-type members of the Scorpius Centaurus complex. To deduce the age of these young stars we compare their Li ?6708 absorption line strengths against those of stars in the TW Hydrae association and ?beta Pictoris moving group. These line strengths indicate that Sco-Cen stars are younger than ?beta Pic stars whose ages of ?~12 Myr have previously been derived from a kinematic traceback analysis. Our derived age, ?~10Myr, for stars in the LCC and UCL subgroups of ScoCen is younger than previously published ages based on the moving cluster method and upper main sequence fitting. The discrepant ages are likely due to an incorrect (or lack of) cross-calibration between model-dependent and model-independent age-dating methods.

Affiliated with

Also associated with

No associations

Rating

New Members of the Scorpius Centaurus Complex and Ages of its sub-regions 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 New Members of the Scorpius Centaurus Complex and Ages of its sub-regions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and New Members of the Scorpius Centaurus Complex and Ages of its sub-regions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-140656