On the anomaly of Balmer line profiles of A-type stars

2002/09/12 by B. Smalley, R. B. Gardiner, F. Kupka +1 · 3 citations
Physics and Astronomy · #Astronomy and Astrophysical Research #History and Developments in Astronomy #Stellar, planetary, and galactic studies #astro-ph

paper · pdf · doi:10.1051/0004-6361:20021330

published as Astron.Astrophys. 395 (2002) 601-610 · 10 pages, 4 figures; Accepted by A&A

arxiv created 2002/09/12 · openalex publication_date 2002/11/01 · arxiv updated 2009/12/01 · openalex created_date 2022/10/02 · openalex updated_date 2026/07/31

Abstract

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.

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