Chemical composition of the young open clusters IC 2602 and IC 2391
نویسندگان
چکیده
منابع مشابه
Membership , lithium , and metallicity in the young open clusters IC 2602 and IC 2391 : enlarging the sample ⋆ ⋆ ⋆
We present lithium abundances for ∼50 X-ray selected candidate members of the 30–50 Myr old open clusters IC 2602 and IC 2391. These data enlarge and extend to cooler temperatures previous Li surveys of these clusters by Stauffer et al. (1989) and Randich et al. (1997). We also give for the first time an estimate of the metallicity of the two clusters which turns out to be close to solar. Radia...
متن کاملThe chromospheric emission of solar - type stars in the young open clusters IC 2391 and IC 2602
In this paper we present chromospheric emission levels of the solar-type stars in the young open clusters IC 2391 and IC 2602. High resolution spectroscopic data were obtained for over 50 F, G, and K stars from these clusters over several observing campaigns using the University College London Echelle Spectrograph on the 3.9-m Anglo-Australian Telescope. Unlike older clusters, the majority (28/...
متن کاملThe low mas end of the young cluster IC 2391
By collecting optical and infrared photometry, as well as medium resolution spectroscopy, we have discovered a sample of low mass stars and brwon dwarfs in the young cluster IC2391. Using the lithium depletion boundary near the substellar limit, we have estimated the age of the cluster as ∼50 Myr. We have also estudied the Hα emission in this sample.
متن کاملDetailed chemical composition of the open cluster IC 4651 : The iron peak , α elements , and Li . ⋆
Detailed chemical composition of the open cluster IC 4651: The iron peak, α elements, and Li. Abstract. We present a detailed chemical analysis of 22 stars along the colour-magnitude sequence of the intermediate-age (1.7 Gyr) open cluster IC 4651, based on high-resolution, high S/N ratio spectra from UVES/VLT. IC 4651 thus becomes one of the few open clusters for which a detailed composition an...
متن کاملQuantitative Stellar Spectral Classification . Iv . Application to the Open Cluster Ic 2391
In this work we perform the first test of a stellar spectral classification method (Stock & Stock 1999) by applying it to early type stars. The sample of stars are the members of the open cluster IC 2391 that have high-resolution spectra available in the UVES Project of Paranal Observatory. We show that, in general, absolute magnitudes M V and intrinsic colors (B − V) 0 can be recovered within ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2009
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361/200811587