Free Access
Astron. Astrophys. Suppl. Ser.
Volume 142, Number 3, March II 2000
Page(s) 467 - 473
Published online 15 March 2000
DOI: 10.1051/aas:2000167

Astron. Astrophys. Suppl. Ser. 142, 467-473

A list of data for the broadening of metallic lines by neutral hydrogen collisions[*]

P.S. Barklem1 - N. Piskunov1 - B.J. O'Mara2

Send offprint request: P.S. Barklem

1 - Uppsala Astronomical Observatory, Box 515, S 751-20 Uppsala, Sweden
2 - Department of Physics, The University of Queensland, St Lucia 4072, Australia

Received July 20, 1999; accepted January 3, 2000


A list of data for the broadening by neutral hydrogen collisions of many astrophysically important spectral lines, which has been incorporated into the Vienna Atomic Line Database (VALD), is presented. Data for lines of neutral atoms are interpolated from the tabulated data of Anstee & O'Mara, Barklem & O'Mara, and Barklem et al. . Data for lines of singly ionised atoms are compiled from the calculations by Barklem & O'Mara. The list at present contains data for 4891 lines between 2300 and 13000 Å of elements from Li to Ni. We examine the statistical impact of the new theory by comparison with the previously available data. We also demonstrate the direct effect on spectral synthesis calculations.

Key words: atomic data -- line: profiles -- astronomical data bases: miscellaneous

Tables at the CDS
Copyright The European Southern Observatory (ESO)

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.