Volume 395, Number 2, November IV 2002
|Page(s)||601 - 609|
|Section||Stellar structure and evolution|
|Published online||14 November 2002|
On the anomaly of Balmer line profiles of A-type stars*
Fundamental binary systems
Astrophysics Group, School of Chemistry & Physics, Keele University, Staffordshire, ST5 5BG, UK e-mail: firstname.lastname@example.org
2 Institute for Astronomy, University of Vienna, Türkenschanzstr. 17, 1180 Vienna, Austria e-mail: email@example.com
3 Astronomy Unit, School of Mathematical Sciences, Queen Mary, University of London, Mile End Road, London, E1 4NS, UK e-mail: firstname.lastname@example.org
4 Research School of Astronomy and Astrophysics, Institute of Advanced Studies, The Australian National University, Private Bag, Weston Creek PO, ACT 2611, Australia e-mail: email@example.com
Corresponding author: B. Smalley, firstname.lastname@example.org
Accepted: 10 September 2002
In previous work, Gardiner et al. ([CITE]) found evidence for a discrepancy between the obtained from Balmer lines with that from photometry and fundamental values for A-type stars. An investigation into this anomaly is presented using Balmer line profiles of stars in binary system with fundamental values of both and . A revision of the fundamental parameters for binary systems given by Smalley & Dworetsky ([CITE]) is also presented. The obtained by fitting Hα and Hβ line profiles is compared to the fundamental values and those obtained from uvby photometry. We find that the discrepancy found by Gardiner et al. ([CITE]) for stars in the range 7000 K 9000 K is no longer evident.
Key words: stars: general / stars: atmospheres / convection / stars: binaries: eclipsing / stars: fundamental parameters
© ESO, 2002
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