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Lithium in the Coma star cluster
Lithium content of five Am stars and 18 F dwarfs of the Coma cluster wasinvestigated, using high-resolution spectral observations with thecoudespectrograph of the Canada-France-Hawaii telescope. Abundances ofboth Li and Fe were determined by a model atmosphere abundance analysis.It was found that two F stars that have T(eff) range of 6400-6700 K arevery depleted in Li. The five Am stars show real differences relative toone another, in both Li content and Li-line strength, presumably due todiffusion and mass loss.
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Gözlemler ve gökölçümü verileri
| Takýmyýldýz: | Erbogan |
| Sað Açýklýk: | 12h26m56.62s |
| Yükselim: | -47°23'48.4" |
| Görünürdeki Parlaklýk: | 8.247 |
| Uzaklýk: | 212.314 parsek |
| özdevim Sað Açýklýk: | 37.9 |
| özdevim Yükselim: | -20.1 |
| B-T magnitude: | 9.911 |
| V-T magnitude: | 8.385 |
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