Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001pasj...53.1223s&link_type=abstract
Publications of the Astronomical Society of Japan, Vol.53, No. 6, pp. 1223-1230
Astronomy and Astrophysics
Astronomy
12
Stars: Abundances, Stars: Chemically Peculiar, Stars: Individual (46 Aquilae Hd 186122)
Scientific paper
A detailed abundance analysis has been carried out for the Hg-Mn star 46 Aql using high-resolution spectra in the visual region (5100--6400 Å) obtained with the High Dispersion Spectrograph of the Subaru Telescope. Our attention has been mainly focused on those elements which have not been analyzed previously. He, C, N, and O are underabundant, while Na shows the solar abundance. We have confirmed previously reported underabundances of Mg, Al, and Si, and have found an overabundances of P (+1.5 dex) and Ti (+1.0 dex) and a significant underabundance of S (-1.8 dex). Fe is overabundant by +0.8 +/- 0.1 dex and a microturbulent velocity of 0.3 km s-1 was found from an analysis of the FeII lines. Among a few hundred unidentified absorption lines, we identified lines of AsII and XeII and a very large (+4.0 dex) overabundance of Xe is obtained. We have confirmed emission lines of MnII and TiII near 6100 Å, while those of CrII cannot have been seen.
Ando Hiroyasu
Aoki Wako
Honda Satoshi
Izumiura Hideyuki
Kajino Toshitaka
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