Issue |
A&A
Volume 413, Number 1, January I 2004
|
|
---|---|---|
Page(s) | 323 - 327 | |
Section | Stellar structure and evolution | |
DOI | https://doi.org/10.1051/0004-6361:20031577 | |
Published online | 17 December 2003 |
Physical parameters of helium-rich subdwarf B stars from spectral energy distributions*
Armagh Observatory, College Hill, Armagh BT61 9DG., N. Ireland, UK
Corresponding author: A. Ahmad, amir@star.arm.ac.uk
Received:
15
July
2003
Accepted:
2
October
2003
We present effective temperatures and angular radii for eleven helium-rich subdwarf B
stars. These are measured using spectral energy distributions from archival IUE spectra
and existing optical and infrared photometry. The data have been analysed
using a grid of high-gravity helium-rich LTE model atmospheres and a
-minimization procedure. The parameters derived here allow for independent
verification of the parameters derived from the analysis of optical spectra.
Key words: stars: chemically peculiar / stars: early-type / subdwarfs / stars: atmospheres / stars: fundamental parameters
© ESO, 2004
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