Very Low‐Mass Stars and Brown Dwarfs of the Young Open Cluster IC 2391 | Zendy

D. Barrado | Zendy; J. R. Stauffer | Zendy; César Briceño | Zendy; B. M. Patten | Zendy; N. C. Hambly | Zendy; Joseph D. Adams | Zendy

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Very Low‐Mass Stars and Brown Dwarfs of the Young Open Cluster IC 2391

Author(s) -

D. Barrado,

J. R. Stauffer,

César Briceño,

B. M. Patten,

N. C. Hambly,

Joseph D. Adams

Publication year - 2001

Publication title -

the astrophysical journal supplement series

Language(s) - English

Resource type - Journals

eISSN - 1538-4365

pISSN - 0067-0049

DOI - 10.1086/320359

Subject(s) - microdensitometer , brown dwarf , open cluster , stars , photometry (optics) , physics , low mass , pleiades , astrophysics , astronomy , optics

We have identified a large sample of probable low mass members of the youngopen cluster IC2391 based on optical (VRIZ) and Infrared (JHK$_s$) photometry.Our sample includes 50 probable members and 82 possible members, both very lowmass stars and brown dwarfs. We also provide accurate positions for these starsand brown dwarf candidates derived from red UK Schmidt plates measured usingthe microdensitometer SuperCOSMOS. Assuming an age of 53 Myr, we estimate thatwe have reached a mass of 0.025 M$_\odot$, if the identified objects are indeedmembers of IC2391.Comment: Accepted Ap

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