EDP Sciences
Free Access
Volume 445, Number 3, January III 2006
Page(s) 1165 - 1168
Section Atomic, molecular and nuclear data
DOI https://doi.org/10.1051/0004-6361:20054152
Published online 03 January 2006

A&A 445, 1165-1168 (2006)
DOI: 10.1051/0004-6361:20054152

The FERRUM project: improved experimental oscillator strengths in Cr II

H. Nilsson1, G. Ljung1, H. Lundberg2 and K. E. Nielsen3, 4

1  Atomic Astrophysics, Lund Observatory, Lund University, Box 43, 221 00 Lund, Sweden
2  Atomic Physics, Department of Physics, Lund Institute of Technology, Box 118, 221 00 Lund, Sweden
3  Catholic University of America, Washington, DC 20064, USA
4  Exploration of the Universe Division, Code 667, Goddard Space Flight Center, Greenbelt, MD 20771, USA

(Received 5 September 2005 / Accepted 14 September 2005 )

We report absolute oscillator strengths for 119 $\ion{Cr}{ii}$ transitions in the wavelength region 2050-4850 Å. The transition probabilities have been derived by combining radiative lifetimes, measured with time-resolved laser induced fluorescence, and branching fractions from intensity calibrated Fouirer transform spectrometer data. New radiative lifetimes for the 3d4(5D)4p 4F, 4D and 6P terms are reported, adding up to a total of 25 energy levels with measured lifetimes used to derive this improved set of atomic data.

Key words: atomic data -- line: identification

SIMBAD Objects

© ESO 2006

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.