NOAO >   Observing Info >   Approved Programs >   2019B-0402

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Program Information for 2019B-0402


PI: Azmain H Nisak, Georgia State U., nisak@astro.gsu.edu
Address: Department of Physics and Astronomy, P.O. Box 5060, Atlanta, GA 30302-5060 USA

CoI: Russel J White, Georgia State U.
CoI: Alexandra Yep, Georgia State U.

Title: Confirmation of New Candidate Members in Young Open Clusters IC 2602 and IC 2391

Abstract: Accurate membership lists of open clusters are vital to age- determination and have important consequences on constraining stellar evolution and planet migration theories. IC 2391 and IC 2602 are the nearest open clusters with ages between 10 and 100 Myr. Hence, they provide a glimpse at the transition between pre-main sequence and main- sequence stars and snapshots of early planet dynamical evolution. Using GAIA kinematic and distance information, we identified 58 new candidate members in these clusters. To confirm these candidates with spectra, we are proposing to use the Goodman spectrograph on the 4.1-m SOAR telescope for 33 stars down to V = 17. We will measure spectral types, radial velocities, and signatures of youth, such as H alpha, large $v sin i$, and lithium. These stars, ranging in spectral type from K to M, will allow us to cover the poorly sampled lithium edge, thereby making them valuable for improving age estimates and testing stellar evolution theories.

Program Type: Standard/Galactic

Scheduled Nights:
Run 1 (2019B):  SOAR/Goodman -- 3n on Dec 07 - Dec 09 2019


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NOAO >   Observing Info >   Approved Programs >   2019B-0402

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