Single photoionization of the Kr-like Rb ii ion in the photon energy range 22–46.0&nbsp;eV

McLaughlin, Brendan M.; Babb, James F.

doi:10.1093/mnras/stz790

Single photoionization of the Kr-like Rb ii ion in the photon energy range 22–46.0 eV

Journal Article · Sat Mar 16 00:00:00 EDT 2019 · Monthly Notices of the Royal Astronomical Society

DOI:https://doi.org/10.1093/mnras/stz790· OSTI ID:1505892

^[1]; ^[2]

Centre for Theoretical Atomic and Molecular Physics (CTAMOP), School of Mathematics and Physics, Queen’s University Belfast, Belfast BT7 1NN, UK, Institute for Theoretical Atomic and Molecular Physics (ITAMP), Harvard Smithsonian Center for Astrophysics, MS-14, Cambridge, MA 02138, USA
Institute for Theoretical Atomic and Molecular Physics (ITAMP), Harvard Smithsonian Center for Astrophysics, MS-14, Cambridge, MA 02138, USA

Abstract

Single photoionization cross-sections for Kr-like Rb+ ions are reported in the energy (wavelength) range from 22 (564 Å) to 46 eV (270 Å). Theoretical cross-section calculations for this trans-Fe element are compared with measurements from the ASTRID radiation facility in Aarhus, Denmark and from the dual laser plasma technique, at respectively 40 and 35 meV FWHM energy resolution. In the photon energy region 22–32 eV the spectrum is dominated by excitation auto-ionizing resonance states. Above 32 eV the cross-section exhibits classic Fano window resonances features, which are analysed and discussed. Large-scale theoretical photoionization cross-section calculations, performed using a Dirac Coulomb R-matrix approximation are benchmarked against these high-resolution experimental results. Comparison of the theoretical work with the experimental studies allowed the identification of resonance features and their parameters in the spectra in addition to contributions from excited metastable states of the Rb+ ions.

View Journal Article

Research Organization:: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)

Sponsoring Organization:: USDOE; USDOE Office of Science (SC)

Grant/Contract Number:: AC02-05CH11231

OSTI ID:: 1505892

Alternate ID(s):: OSTI ID: 1577641

Journal Information:: Monthly Notices of the Royal Astronomical Society, Journal Name: Monthly Notices of the Royal Astronomical Society Journal Issue: 1 Vol. 486; ISSN 0035-8711

Publisher:: Oxford University PressCopyright Statement

Country of Publication:: United Kingdom

Language:: English

References (23)

Relativistic Quantum Theory of Atoms and Molecules Grant, I. P. Springer Series on Atomic, Optical, and Plasma Physics https://doi.org/10.1007/978-0-387-35069-1	book	January 2007
GRASP: A general-purpose relativistic atomic structure program Dyall, K. G.; Grant, I. P.; Johnson, C. T. Computer Physics Communications, Vol. 55, Issue 3 https://doi.org/10.1016/0010-4655(89)90136-7	journal	October 1989
GRASP92: A package for large-scale relativistic atomic structure calculations Parpia, F. A.; Fischer, C. Froese; Grant, I. P. Computer Physics Communications, Vol. 94, Issue 2-3 https://doi.org/10.1016/0010-4655(95)00136-0	journal	April 1996
The QB program: Analysing resonances using R-matrix theory Quigley, Lisa; Berrington, Keith; Pelan, John Computer Physics Communications, Vol. 114, Issue 1-3 https://doi.org/10.1016/S0010-4655(98)00059-9	journal	November 1998
Abundances of Cu and Zn in metal-poor stars: Clues for Galaxy evolution Mishenina, T. V.; Kovtyukh, V. V.; Soubiran, C. Astronomy & Astrophysics, Vol. 396, Issue 1 https://doi.org/10.1051/0004-6361:20021399	journal	November 2002
CLOUDY 90: Numerical Simulation of Plasmas and Their Spectra Ferland, G. J. ; Korista, K. T. ; Verner, D. A. Publications of the Astronomical Society of the Pacific, Vol. 110, Issue 749 https://doi.org/10.1086/316190	journal	July 1998
The XSTAR Atomic Database Bautista, M. A.; Kallman, T. R. The Astrophysical Journal Supplement Series, Vol. 134, Issue 1 https://doi.org/10.1086/320363	journal	May 2001
Characterizing the Chemistry of the Milky way Stellar Halo: Detailed Chemical Analysis of a Metal-Poor Stellar Stream, Roederer, Ian U.; Sneden, Christopher; Thompson, Ian B. The Astrophysical Journal, Vol. 711, Issue 2 https://doi.org/10.1088/0004-637X/711/2/573	journal	February 2010
CHARACTERIZING THE HEAVY ELEMENTS IN GLOBULAR CLUSTER M22 AND AN EMPIRICAL s -PROCESS ABUNDANCE DISTRIBUTION DERIVED FROM THE TWO STELLAR GROUPS Roederer, I. U.; Marino, A. F.; Sneden, C. The Astrophysical Journal, Vol. 742, Issue 1 https://doi.org/10.1088/0004-637X/742/1/37	journal	November 2011
Updated Atomic data and Calculations for X-Ray Spectroscopy Foster, A. R.; Ji, L.; Smith, R. K. The Astrophysical Journal, Vol. 756, Issue 2 https://doi.org/10.1088/0004-637X/756/2/128	journal	August 2012
Segue 1: an Unevolved Fossil Galaxy from the Early Universe Frebel, Anna; Simon, Joshua D.; Kirby, Evan N. The Astrophysical Journal, Vol. 786, Issue 1 https://doi.org/10.1088/0004-637X/786/1/74	journal	April 2014
The QB method: analysing resonances using R -matrix theory. Applications to , He and Li Quigley, Lisa; Berrington, Keith Journal of Physics B: Atomic, Molecular and Optical Physics, Vol. 29, Issue 20 https://doi.org/10.1088/0953-4075/29/20/011	journal	October 1996
Photoionisation of Ca + ions in the valence-energy region 20–56 eV: experiment and theory Müller, A.; Schippers, S.; Phaneuf, R. A. Journal of Physics B: Atomic, Molecular and Optical Physics, Vol. 50, Issue 20 https://doi.org/10.1088/1361-6455/aa8ba8	journal	October 2017
Single photoionization of the Zn ii ion in the photon energy range 17.5–90.0 eV: experiment and theory Hinojosa, G.; Davis, V. T.; Covington, A. M. Monthly Notices of the Royal Astronomical Society, Vol. 470, Issue 4 https://doi.org/10.1093/mnras/stx1534	journal	June 2017
Lifetime Matrix in Collision Theory Smith, Felix T. Physical Review, Vol. 118, Issue 1 https://doi.org/10.1103/PhysRev.118.349	journal	April 1960
Detection and analysis of interloping molecular resonances Ballance, C. P.; Berrington, K. A.; McLaughlin, B. M. Physical Review A, Vol. 60, Issue 6 https://doi.org/10.1103/PhysRevA.60.R4217	journal	December 1999
Trends in autoionization of Rydberg states converging to the 4 s threshold in the Kr − Rb + − Sr 2 + isoelectonic sequence: Theory and experiment Neogi, A.; Kennedy, E. T.; Mosnier, J. -P. Physical Review A, Vol. 67, Issue 4 https://doi.org/10.1103/PhysRevA.67.042707	journal	April 2003
Absolute photoionization cross-section measurements of the Kr I isoelectronic sequence Kilbane, D.; Folkmann, F.; Bizau, J. -M. Physical Review A, Vol. 75, Issue 3 https://doi.org/10.1103/PhysRevA.75.032711	journal	March 2007
Scattering Theory of Absorption-Line Profiles and Refractivity Shore, Bruce W. Reviews of Modern Physics, Vol. 39, Issue 2 https://doi.org/10.1103/RevModPhys.39.439	journal	April 1967
Spectral Distribution of Atomic Oscillator Strengths Fano, U.; Cooper, J. W. Reviews of Modern Physics, Vol. 40, Issue 3 https://doi.org/10.1103/RevModPhys.40.441	journal	July 1968
Theoretical study of photoionization of the isoelectronic sequence Rb+, Sr2+, and Y3+ Demekhin, Ph. V.; Petrov, I. D.; Lagutin, B. M. Optics and Spectroscopy, Vol. 102, Issue 2 https://doi.org/10.1134/S0030400X07020014	journal	February 2007
Quantitative Spectroscopy of Photoionized Clouds Ferland, Gary J. Annual Review of Astronomy and Astrophysics, Vol. 41, Issue 1 https://doi.org/10.1146/annurev.astro.41.011802.094836	journal	September 2003
The 87 Rubidium Atomic Clock Maser in Giant Stars Darling, Jeremy Research Notes of the AAS, Vol. 2, Issue 1 https://doi.org/10.3847/2515-5172/aaa83f	journal	January 2018

Similar Records

Absolute photoionization cross-section measurements of the Kr I isoelectronic sequence

Journal Article · Thu Mar 15 00:00:00 EDT 2007 · Physical Review. A · OSTI ID:20982331

Resonant double photoionization of lithium studied with medium energy resolution

Journal Article · Sun Oct 15 00:00:00 EDT 2006 · Physical Review. A · OSTI ID:20863910

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
Astronomy & Astrophysics
atomic data
atomic processes
scattering

Single photoionization of the Kr-like Rb ii ion in the photon energy range 22–46.0 eV

Citation Formats

References (23)

Similar Records

Related Subjects