The Be II lambda 3130 A region in the spectra of VEGA and Sirius

Details The Be II lambda 3130 A region in the spectra of VEGA and Sirius The Be II lambda 3130 A region in the spectra of VEGA and Sirius

Aug 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985a%26a...149..437g&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 149, no. 2, Aug. 1985, p. 437-441. SERC-supported research.

Astronomy and Astrophysics

Astrophysics

8

A Stars, Abundance, Beryllium, Stellar Spectra, Stellar Spectrophotometry, Ultraviolet Spectra, Astronomical Photography, High Resolution, Hydrogen, Signal To Noise Ratios

Scientific paper

High-resolution low-noise photographic spectrophotometry has been made of the λ3130 Å region in the spectra of Vega and Sirius. No feature is seen at the position of Be II λ3131.06 in either star: the formally determined equivalent widths are 0.7±1.2 mÅ (70±120 fm) in Vega and 0.38±0.41 mÅ (38±41 fm) in Sirius. The corresponding 1-σ upper limits to the beryllium abundance are [Be/H] < -11.4 (Vega) and [Be/H] < -11.6 (Sirius). A brief comparison is made between the authors' spectrum of Vega and that published by Welsh et al. (1983).

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