skip to main content

Title: Extensive in situ radiation of feather lice on tinamous
Authors:
; ; ; ; ;
Award ID(s):
1855812
Publication Date:
NSF-PAR ID:
10177148
Journal Name:
Proceedings of the Royal Society B: Biological Sciences
Volume:
287
Issue:
1921
Page Range or eLocation-ID:
20193005
ISSN:
0962-8452
Sponsoring Org:
National Science Foundation
More Like this
  1. We report on spectroscopic measurements on the4f76s28S7/2∘<#comment/>→<#comment/>4f7(8S∘<#comment/>)6s6p(1P∘<#comment/>)8P9/2transition in neutral europium-151 and europium-153 at 459.4 nm. The center of gravity frequencies for the 151 and 153 isotopes, reported for the first time in this paper, to our knowledge, were found to be 652,389,757.16(34) MHz and 652,386,593.2(5) MHz, respectively. The hyperfine coefficients for the6s6p(1P∘<#comment/>)8P9/2state were found to beA(151)=−<#comment/>228.84(2)MHz,B(151)=226.9(5)MHzandA(153)=−<#comment/>101.87(6)MHz,B(153)=575.4(1.5)MHz, which all agree with previously published results except for A(153), which shows a small discrepancy. The isotope shift is found to be 3163.8(6) MHz, which also has a discrepancy with previously published results.