Kramida, A.; Ralchenko, Y.; Reader, J.; NIST ASD Team. NIST Atomic Spectra Database, National Institute of Standards and Technology, Gaithersburg. 2018. Available online: http://physics.nist.gov/asd (accessed on 6 January 2020).
Wybourne, B.G. The fascination of the rare earths-Then, now and in the future. J. Alloy. Compd. 2004, 380, 96.
Lawler, J.E.; Den Hartog, E.A.; Sneden, C. Spectroscopic Data for Neutral and Ionized Rare Earth Elements. AIP Conf. Proc. 2005, 771, 152.
Wahlgren, C.M. The lanthanide elements in stellar and laboratory spectra. Phys. Scr. 2002, T100, 22.
Mumpower, M.R.; McLaughlin, G.C.; Surman, R. The Rare Earth Peak: An Overlooked r-process Diagnostic. Astrophys. J. 2012, 752, 117.
Biémont, E.; Quinet, P. Recent Advances in the Study of Lanthanide Atoms and Ions. Phys. Scr. 2003, 105, 38.
Cowley, C.R.; Mathys, G. Line identifications and preliminary abundances from the red spectrum of HD 101065 (Przybylski's star). Astron. Astrophys. 1998, 339, 165.
Gopka, V.F.; Ul'yanov, O.M.; Andrievskii, S.M. A hypothesis for explaining the origin of Przybylski's star (HD 101065). Kin. Phys. Celest. Bodies 2008, 24, 36.
Cowley, C.R. Lanthanide Rare Earths in Stellar Spectra With Emphasis on Chemically Peculiar Stars. Phys. Scr. 1984, 8, 28.
Kasen, D.; Metzger, B.; Barnes, J.; Quataert, E.; Ramirez-Ruiz, E. Origin of the heavy elements in binary neutron-star mergers from a gravitational-wave event. Nature 2017, 551, 80.
Pian, E.; d'Avanzo, P.; Benetti, S.; Branchesi, M.; Brocato, E.; Campana, S.; Getman, F. Spectroscopic identification of r-process nucleosynthesis in a double neutron-star merger. Nature 2017, 551, 67.
Tanvir, N.R.; Levan, A.J.; González-Fernández, C.; Korobkin, O.; Mandel, I.; Rosswog, S.; Kangas, T. The emergence of a lanthanide-rich kilonova following the merger of two neutron stars. Astrophys. J. Lett. 2017, 848, L27.
Gaigalas, G.; Kato, D.; Rynkun, P.; Radziuté, L.; Tanaka, M. Extended Calculations of Energy Levels and Transition Rates of Nd ii-iv Ions for Application to Neutron Star Mergers. Astrophys. J. Suppl. Ser. 2019, 240, 29.
Hemmilä, I. Luminescent lanthanide chelates-A way to more sensitive diagnostic methods. J. Alloy. Compd. 1995, 225, 480.
Hasewaga, Y.; Wada, Y.; Yanagida, S. Strategies for the design of luminescent lanthanide(III) complexes and their photonic applications. J. Photochem. Photobiol. C 2004, 5, 183.
Dossing, A. Luminescence from Lanthanide(3+) Ions in Solution. Eur. J. Inorg. Chem. 2005, 2005, 1425.
Werts, M.H.V. Making sense of lanthanide luminescence. Sci. Prog. 2005, 88, 101.
Cowan, R.D. The Theory of Atomic Structure and Spectra; University of California Press: Berkeley, CA, USA, 1981.
Quinet, P.; Palmeri, P.; Biémont, E.; McCurdy, M.M.; Rieger, G.; Pinnington, E.H.; Wickliffe, M.E.; Lawler, J.E. Experimental and theoretical lifetimes, branching fractions and oscillator strengths in Lu II. Mon. Not. R. Astron. Soc. 1999, 307, 934.
Quinet, P.; Palmeri, P.; Biémont, E.; Li, Z.S.; Zhang, Z.G.; Svanberg, S. Radiative lifetime measurements and transition probability calculations in lanthanide ions. J. Alloy. Compd. 2002, 344, 255.
Biémont, E.; Palmeri, P.; Quinet, P. A new database of astrophysical interest. Astrophys. Space Sci. 1999, 269, 635.
Fraga, S.; Karwowski, J.; Saxena, K.M.S. Handbook of Atomic Data; Elsevier: Amsterdam, The Netherlands, 1976.
Johnson, W.R.; Kolb, D.; Huang, K.N. Electric-dipole, quadrupole, and magnetic-dipole susceptibilities and shielding factors for closed-shell ions of the He, Ne, Ar, Ni (Cu+), Kr, Pb, and Xe isoelectronic sequences. At. Data Nucl. Data Tables 1983, 28, 333.
Hameed, S.; Herzenberg, A.; James, M.G. Core polarization corrections to oscillator strengths in the alkali atoms. J. Phys. B 1968, 1, 822.
Hameed, S. Core Polarization Corrections to Oscillator Strengths and Singlet-Triplet Splittings in Alkaline Earth Atoms. J. Phys. B 1972, 5, 746.
Biémont, E.; Quinet, P.; Svanberg, S.; Xu, H.L. Experimental lifetime determination in neutral praseaodymium (Pr I) and neodymium (Nd I). J. Phys. B 2004, 37, 1381.
Biémont, E.; Lefèbvre, P.H.; Quinet, P.; Svanberg, S.; Xu, H.L. Radiative lifetime measurements and oscillator strength determination for transitions in singly ionized praseaodymium (Pr II). Eur. Phys. J. D 2003, 27, 33.
Svanberg, S. Atomic and Molecular Spectroscopy. Basic Aspects and Practical Applications; Springer: Berlin/Heidelberg, Germany, 2001.
Engström, L.; Lundberg, H.; Nilsson, H.; Hartman, H.; Bäckström, E. The FERRUM project: Experimental transition probabilities from highly excited even 5s levels in Cr II. Astron. Astrophys. 2014, 570, A34.
Gamrath, S.; Palmeri, P.; Quinet, P. Radiative transition parameters in atomic lanthanum from pseudo-relativistic Hartree-Fock and fully relativistic Dirac-Fock calculations. Atoms 2019, 7, 38.
Den Hartog, E.A.; Palmer, A.J.; Lawler, J.E. Radiative lifetimes and transition probabilities of neutral lanthanum. J. Phys. B 2015, 48, 155001.
Biémont, E.; Garnir, H.P.; Litzén, U.; Nielsen, K.; Quinet, P.; Svanberg, S.; Wahlgren, G.M.; Zhang, Z.G. Radiative lifetime and oscillator strength determinations in Sm III. Astron. Astrophys. 2003, 399, 343.
Tian, Y.; Wang, X.; Liu, C.; Dai, Z. Measurements of radiative lifetimes, branching fractions, transition probabilities, and oscillator strengths for Eu II and Eu III levels. Mon. Not. R. Astr. Soc. 2019, 485, 4485.
Yu, Q.; Wang, X.; Li, Q.; Gong, Y.; Dai, Z. Experimental radiative lifetimes, branching fractions, and oscillator strengths of some levels in Tm III. Mon. Not. R. Astr. Soc. 2018, 476, 4861.
Öberg, K.J.; Lundberg, H. Experimental transition probabilities and improved level energies in Yb III. Eur. Phys. J. D 2007, 42, 15.
Jorissen, A. Atomic and molecular data for stellar physics: Former successes and future challenges. Phys. Scr. 2004, 112, 73.
Ryabchikova, T.; Mashonkina, L. The role of atomic and molecular data in stellar atmosphere studies: Atmospheric structure and chemistry. Phys. Scr. 2014, 89, 114007.
Monier, R. Atomic data needs for the modelling of stellar spectra. arXiv 2015, arXiv:1509.09165.
VALD. Available online: https://www.astro.uu.se (accessed on 6 January 2020).
VAMDC. Consortium. Available online: http://www.vamdc.org (accessed on 6 January 2020).
Reyniers, M.; Van Winckel, H.; Biémont, E.; Quinet, P. Cerium: The lithium substitute in post-AGB stars. Astron. Astrophys. 2002, 395, L35.
Reyniers, M.; Van Winckel, H. Detection of elements beyond the Ba-peak in VLT+UVES spectra of post-AGB stars. Astron. Astrophys. 2003, 408, L33.
Shavrina, A.V.; Polosukhina, N.S.; Pavlenko, Y.V.; Yushchenko, A.V.; Quinet, P.; Hack, M.; North, P.; Gopka, V.F.; Zverko, J.; Zhiznovsky, J.; et al. The spectrum of the roAp star HD 101065 (Przybylski's star) in the Li I 6708 Â spectral region. Astron. Astrophys. 2003, 409, 707.
Drake, N.A.; Nesvacil, N.; Hubrig, S.; Kochukhov, O.; de la Reza, R.; Polosukhina, N.S.; Gonzalez, J.F. Spectroscopic analysis of chemically peculiar stars: Abundance determination of lithium and some rare earth elements. Proc. Int. Astron. Union 2005, 1, 89-90.
Shavrina, A.V.; Polosukhina, N.S.; Khan, S.; Pavlenko, Y.V.; Kudryavtsev, D.O.; Khalack, V.R.; Mikhailitskaya, N.G.; Lyubchik, Y.P.; Yushchenko, A.V.; Hatzes, A.; et al. Lithium and the 6Li-7Li isotope ratio in the atmospheres of some sharp-lined roAp stars. Astron. Rep. 2006, 50, 500.
Sneden, C.; Lawler, J.E.; Cowan, J.J.; Ivans, Den Hartog, E.A. New rare earth element abundance distributions for the Sun and five r-process-rich very metal-poor stars. Astrophys. J. Suppl. Ser. 2009, 182, 80.
Cowley, C.R.; Hubrig, S.; Palmeri, P.; Quinet, P.; Biémont, E.; Wahlgren, G.M.; Schütz, O.; Gonzalez, J.F. HD 65949: Rosetta stone or red herring. Mon. Not. R. Astron. Soc. 2010, 405, 1271.
Elkin, V.G.; Kurtz, D.W.; Nitschelm, C.; Unda-Sanzana, E. The discovery of a 21-kG magnetic field in the Ap star BD+0°4535. Mon. Not. R. Astron. Soc. 2010, 401, L44.
Shulyak, D.; Ryabchikova, T.; Kildiyarova, R.; Kochukhov, O. Realistic model atmosphere and revised abundances of the coolest Ap star HD 101065. Astron. Astrophys. 2010, 520, A88.
Elkin, V.G.; Kurtz, D.W.; Mathys, G. HD 97394: A magnetic Ap star with high cerium overabundance. Mon. Not. R. Astron. Soc. 2011, 415, 2233.
Niemczura, E.; Hümmerich, S.; Castelli, F.; Paunzen, E.; Bernhard, K.; Hambsch, F.J.; Helminiak, K. HD 66051, an eclipsing binary hosting a highly peculiar, HgMn-related star. Nat. Sci. Rep. 2017, 7, 5906.
Yushchenko, A.V.; Gopka, V.F.; Shavrina, A.V.; Yushchenko, V.A.; Vasileva, S.V.; Andrievsky, S.M.; Raikov, A.A.; Kim, S.; Rittipruk, P.; Jeong, Y.; et al. Peculiarities of the abundance of chemical elements in the atmosphere of PMMR23-red supergiant in the small magellanic cloud due to interstellar gas accretion. Kin. Phys. Celest. Bodies 2017, 33, 199.
Hümmerich, S.; Niemczura, E.; Walczak, P.; Paunzen, E.; Bernhard, K.; Murphy, S.J.; Drobek, D. A spectroscopic and photometric investigation of the mercury-manganese star KIC 6128830. Mon. Not. R. Astron. Soc. 2018, 464, 2467.
Paunzen, E.; Fedurco, M.; Helminiak, K.G.; Pintado, O.I.; Hambsch, F.J.; Hümmerich, S.; Niemczura, E.; Bernhard, K.; Konacki, M.; Hubrig, S.; et al. Orbital parameters and evolutionary status of the highly peculiar binary system HD 66051. Astron. Astrophys. 2018, 615, A36.
Tanaka, M.; Hotokezaka, K. Radiative transfer simulations of neutron star merger ejecta. Astrophys. J. 2013, 775, 113.
Tanaka, M.; Hotokezaka, K.; Kyutoku, K.; Wanajo, S.; Kiuchi, K.; Sekiguchi, Y.; Shibata, M. Radioactively powered emission from black hole-neutron star mergers. Astrophys. J. 2014, 780, 31.
Biémont, E.; Quinet, P.; Svanberg, S.; Xu, H.L. Lifetime measurements and calculations in La I. Eur. Phys. J. D 2004, 30, 157.
Biémont, E.; Li, Z.S.; Palmeri, P.; Quinet, P. Radiative lifetimes in La III and oscillator strengths in La III and Lu III. J. Phys. B 1999, 32, 3409.
Biémont, E.; Clar, M.; Enzonga Yoca, S.; Fivet, V.; Quinet, P.; Träbert, E.; Garnir, H.P. Atomic structure calculations and beam-foil observations of La IV. Can. J. Phys. 2009, 87, 1275.
Palmeri, P.; Quinet, P.; Wyart, J.F.; Biémont, E. Theoretical lifetimes and oscillator strengths in Ce II. Application to the chemical composition of the Sun. Phys. Scr. 2000, 61, 323.
Zhang, Z.G.; Svanberg, S.; Jiang, Z.; Palmeri, P.; Quinet, P.; Biémont, E. Natural radiative lifetimes in Ce II. Phys. Scr. 2001, 63, 122.
Biémont, E.; Quinet, P.; Ryabchikova, T. Core-polarization effects in doubly ionized cerium (Ce III) for transitions of astrophysical interest. Mon. Not. R. Astron. Soc. 2002, 336, 1155.
Zhang, Z.G.; Svanberg, S.; Quinet, P.; Palmeri, P.; Biémont, E. Time-resolved laser spectroscopy of multiply ionized atoms: Natural radiative lifetimes in Ce IV. Phys. Rev. Lett. 2001, 87, 273001.
Palmeri, P.; Quinet, P.; Frémat, Y.; Wyart, J.F.; Biémont, E. Theoretical oscillator strengths in Pr III and application to some CP stars. Astrophys. J. Suppl. Ser. 2000, 129, 367.
Biémont, E.; Garnir, H.P.; Palmeri, P.; Quinet, P.; Li, Z.S.; Zhang, Z.G.; Svanberg, S. Core-polarization effects and radiative lifetime measurements in Pr III. Phys. Rev. A 2001, 64, 022503.
Enzonga Yoca, S.; Quinet, P. Decay rates for radiative transitions in the Pr IV spectrum. J. Phys. B 2013, 46, 145003.
Xu, H.L.; Svanberg, S.; Cowan, R.D.; Lefèbvre, P.H.; Quinet, P.; Biémont, E. Theoretical and experimental lifetime and oscillator strength determination in singly ionized neodymium (Nd II). Mon. Not. R. Astron. Soc. 2003, 346, 433.
Zhang, Z.G.; Svanberg, S.; Palmeri, P.; Quinet, P.; Biémont, E. Measurement of lifetimes by laser-induced fluorescence and determination of transition probabilities of astrophysical interest in Nd III. Astron. Astrophys. 2002, 385, 724.
Enzonga Yoca, S.; Quinet, P. Relativistic Hartree-Fock calculations of transition rates for allowed and forbidden lines in Nd IV. J. Phys. B 2014, 47, 035002.
Fivet, V.; Quinet, P.; Biémont, E.; Jorissen, A.; Yushchenko, A.V.; Van Eck, S. Transition probabilities in singly ionized promethium and the identification of Pm II lines in Przybylski's star and HR 465. Mon. Not. R. Astron. Soc. 2007, 380, 771.
Fivet, V.; Quinet, P.; Biémont, E.; Jorissen, A.; Yushchenko, A.V.; Van Eck, S. Erratum: Transition probabilities in singly ionized promethium and the identification of Pm II lines in Przybylski's star and HR 465. Mon. Not. R. Astron. Soc. 2007, 382, 944.
Xu, H.L.; Svanberg, S.; Quinet, P.; Garnir, H.P.; Biémont, E. Time-resolved laser-induced fluorescence lifetime measurements and relativistic Hartree-Fock calculations of transition probabilities in Sm II. J. Phys. B 2003, 36, 4773.
Quinet, P.; Biémont, E. Radiative lifetime, oscillator strength and Landé factor calculations in doubly ionized europium (Eu III). Mon. Not. R. Astron. Soc. 2003, 340, 463.
Biémont, E.; Kohnen, G.; Quinet, P. Transition probabilities in Gd III. Astron. Astrophys. 2002, 393, 717.
Biémont, E.; Garnir, H.P.; Quinet, P.; Svanberg, S.; Zhang, Z.G. Time-resolved laser-induced fluorescence lifetime measurements and theoretical transition probabilities in Tb III. Phys. Rev. A 2002, 65, 052502.
Zhang, Z.G.; Svanberg, S.; Palmeri, P.; Quinet, P.; Biémont, E. Experimental and theoretical studies of Dy III: Radiative lifetimes and oscillator strengths of astrophysical interest. Mon. Not. R. Astron. Soc. 2002, 334, 1-10.
Biémont, E.; Palmeri, P.; Quinet, P.; Paquin, G.; Zhang, Z.G.; Somesfalean, G.; Svanberg, S. Measurement of radiative lifetimes and determination of transition probabilities of astrophysical interest in Ho III. Mon. Not. R. Astron. Soc. 2001, 328, 1085.
Zhang, Z.G.; Somesfalean, G.; Svanberg, S.; Palmeri, P.; Quinet, P.; Biémont, E. Radiative lifetime measurements and oscillator strengths of astrophysical interest in Ho III. Astron. Astrophys. 2002, 384, 364.
Xu, H.L.; Jiang, Z.; Zhang, Z.G.; Dai, Z.; Svanberg, S.; Quinet, P.; Biémont, E. Radiative lifetime measurements in Er II by time-resolved laser spectroscopy. J. Phys. B 2003, 36, 1771.
Biémont, E.; Garnir, H.P.; Bastin, T.; Palmeri, P.; Quinet, P.; Li, Z.S.; Zhang, Z.G.; Lokhnygin, V.; Svanberg, S. Radiative lifetime measurements and transition probabilities of astrophysical interest in Er III. Mon. Not. R. Astron. Soc. 2001, 321, 481.
Quinet, P.; Palmeri, P.; Biémont, E. On the use of the Cowan's code for atomic structure calculations in singly ionized lanthanides. J. Quant. Spectrosc. Rad. Transf. 1999, 62, 625.
Li, Z.S.; Zhang, Z.G.; Lokhnygin, V.; Svanberg, S.; Bastin, T.; Biémont, E.; Garnir, H.P.; Palmeri, P.; Quinet, P. Radiative lifetime measurements in Tm III with time-resolved laser spectroscopy and comparisons with HFR calculations. J. Phys. B 2001, 34, 1349.
Enzonga Yoca, S.; Quinet, P. Radiative decay rates for electric dipole, magnetic dipole and electric quadrupole transitions in triply ionized thulium (Tm IV). Atoms 2017, 5, 28.
Biémont, E.; Dutrieux, J.F.; Martin, I.; Quinet, P. Lifetime calculations in Yb II. J. Phys. B 1998, 31, 3321.
Li, Z.S.; Svanberg, S.; Quinet, P.; Tordoir, X.; Biémont, E. Lifetime measurements in Yb II with time-resolved laser spectroscopy. J. Phys. B 1999, 32, 1731.
Biémont, E.; Quinet, P.; Dai, Z.; Jiang, Z.; Zhang, Z.G.; Xu, H.L.; Svanberg, S. Lifetime measurements and calculations in singly ionized ytterbium. J. Phys. B 2002, 35, 4743.
Biémont, E.; Garnir, H.P.; Li, Z.S.; Lokhnygin, V.; Palmeri, P.; Quinet, P.; Svanberg, S.; Wyart, J.F.; Zhang, Z.G. Experimental and theoretical energy levels, transition probabilities and radiative lifetimes in Yb III. J. Phys. B 2001, 34, 1869.
Zhang, Z.G.; Li, Z.S.; Svanberg, S.; Palmeri, P.; Quinet, P.; Biémont, E. Experimental and theoretical lifetimes in Yb III. Eur. Phys. J. D 2001, 15, 301.
Wyart, J.F.; Tchang-Brillet, W.U.L.; Spector, N.; Palmeri, P.; Quinet, P.; Biémont, E. Extended analysis of the spectrum of triply-ionized ytterbium (Yb IV) and transition probabilities. Phys. Scr. 2001, 63, 113.
Fedchak, J.A.; Den Hartog, E.A.; Lawler, J.E.; Palmeri, P.; Quinet, P.; Biémont, E. Experimental and theoretical radiative lifetimes, branching fractions, and oscillator strengths for Lu I and experimental lifetimes for Lu II and Lu III. Astrophys. J. 2000, 542, 1109.
Dai, Z.; Jiang, Z.; Xu, H.L.; Zhang, Z.G.; Svanberg, S.; Biémont, E.; Lefèbvre, P.H.; Quinet, P. Time-resolved laser-induced fluorescence measurements of Rydberg states in Lu I and comparison with theory. J. Phys. B 2003, 36, 479.
