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Element stratification in roAp stars 10 Aquilae (HD 176232)
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Astronomy and Space Physics.
2008 (English)In: Contributions of the Astronomical Observatory Skalnaté Pleso, ISSN 1335-1842, Vol. 38, no 2, 329-334 p.Article in journal (Refereed) Published
Abstract [en]

We present the results of our analysis of the vertical element stratification in the atmospheres of 9 roAp stars. Using high resolution observations (R approximate to 100000) obtained with the ESO-VLT spectrograph UVES and state of the art model atmosphere and spectral synthesis codes, we analysed the inhomogeneous vertical distribution of Mg, Si, Ca, Cr, Fe and Sr in 10 Aquilae (HD 176232) and Fe stratification in the whole sample. We present the derived vertical abundance map of 10 Aquilae's atmosphere and compare our findings with Fe stratification profiles of all roAp stars.

Place, publisher, year, edition, pages
2008. Vol. 38, no 2, 329-334 p.
Keyword [en]
stars : abundances, stars : atmospheres, stars : chemically peculiar, stars : magnetic fields
National Category
Physical Sciences
URN: urn:nbn:se:uu:diva-110167ISI: 000256514000035OAI: oai:DiVA.org:uu-110167DiVA: diva2:275480
Available from: 2009-11-05 Created: 2009-11-05 Last updated: 2009-11-05

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