Beryllium Spectral Lines in Three Stars
Reproduction of a small wavelength region of the spectra obtained with the UVES spectrometer at the 8.2-m Kueyen telescope at Paranal of these stars (above), together with that of another nearby star, HD 218502, a field star in which the Beryllium lines are also visible (below). This star, however, is not a member of a cluster and its age is not well known. The achieved signal-to-noise ratios are indicated. The best-fitting synthetic spectra are show as red dots; in the spectrum of A2111, the blue dashed lines illustrate the accuracy of the fit - they correspond to a variation of the Beryllium content by approx. ± 50% (0.2 dex).
Credit:
ESO
About the Image
| Id: | eso0425c |
| Type: | Chart |
| Release date: | 17 August 2004 |
| Related releases: | eso0425 |
| Size: | 800 x 792 px |
About the Object
| Name: | A2111, A228, HD 218502 |
| Type: | • Milky Way : Star • X - Stars |
Colours & filters
| Band | Wavelength | Telescope |
| Ultraviolet U |
313 nm | Very Large Telescope UVES |
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