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Lithium abundances in the young open cluster ic 2602
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Aharpour, N. Stauffer, J. R. Randich, S. Prosser, C. F. Pallavicini, R. |
| Copyright Year | 1997 |
| Description | We have obtained high-resolution spectra for 28 candidate late-type stars in the 30 Myr old cluster IC 2602. NLTE Li abundances have been derived from measured equivalent widths. The log n(Li) - T(sub eff) and log n(Li) - mass distributions for our sample stars have been compared with those of the Pleiades and alpha Persei. Our data show that F stars in the three clusters have the same lithium content, which corresponds to the initial content for Pop. I stars. G and early-K IC 2602 stars are, on average, somewhat more Li-rich than their counterparts in the two slightly older clusters. Finally, the latest-type IC 2602 stars are heavily Li depleted, with their Li content being as low as the lowest measured among the Pleiades. As in the Pleiades and alpha Per, a star-to-star scatter in lithium is observed among 30 Myr old late-K/early-K dwarfs in IC 2602, indicating that this spread develops in the pre-main sequence phases. |
| File Size | 1020032 |
| Page Count | 16 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19970023069 |
| Archival Resource Key | ark:/13960/t3rv5gw9r |
| Language | English |
| Publisher Date | 1997-03-01 |
| Access Restriction | Open |
| Subject Keyword | Astrophysics Stellar Spectra Stellar Mass Ejection Mass Distribution Abundance Pleiades Cluster Lithium Open Clusters Early Stars Star Clusters Metallicity K Stars Stellar Physics Pre-main Sequence Stars Dwarf Stars Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
