Wavelengths and transition probabilities for n =4 fi n 0 =4 transitions in heavy Cu-like ions (70 6 Z 6 92) P. Palmeri a, * , P. Quinet a,b ,E ´ . Bie ´mont a,b , E. Tra ¨bert c a Astrophysique et Spectroscopie, Universite ´ de Mons-Hainaut, B-7000 Mons, Belgium b IPNAS (Ba ˆt. B15), Sart Tilman, Universite ´ de Lie `ge, B-4000 Lie `ge, Belgium c Physics and Advanced Technologies, Lawrence Livermore National Laboratory, Livermore, CA 94550-9234, USA Available online 9 February 2007 Abstract Wavelengths and transition probabilities have been calculated for the n =4 fi n 0 = 4 allowed transitions in the heavy Cu-like ions with Z = 70–92. Fully relativistic multiconfiguration Dirac–Fock (MCDF) calculations were carried out. They take into account the cor- relations within the n = 4 complex, the core-valence n =3 fi n 0 = 4 virtual excitations, and quantum electrodynamics effects. The present results are compared to and agree well with recent electron–beam ion–trap (EBIT) measurements in ytterbium, tungsten, osmium, gold, lead, bismuth, thorium, and uranium. Ó 2006 Elsevier Inc. All rights reserved. 0092-640X/$ - see front matter Ó 2006 Elsevier Inc. All rights reserved. doi:10.1016/j.adt.2006.12.003 * Corresponding author. Fax: +32 65 37 30 54. E-mail address: palmeri@umh.ac.be (P. Palmeri). www.elsevier.com/locate/adt Atomic Data and Nuclear Data Tables 93 (2007) 537–547