Experimental oscillator strengths in U II of cosmological interest

Hampus Nilsson; Stefan Ivarsson; Sveneric Johansson; Hans Lundberg

doi:10.1051/0004-6361:20011540

Experimental oscillator strengths in U II of cosmological interest

Hampus Nilsson, Stefan Ivarsson, Sveneric Johansson, Hans Lundberg

Atomic Physics

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Abstract

Oscillator strengths for 57 U II lines in the region 3500-6700 Åhave been derived by combining new branching fraction measurements withrecently measured lifetimes. The lines combine six upper levels withnumerous low levels having excitation energies of 0-1.5 eV. The datainclude the U II line at 3859 Å, which is used forcosmochronology.

Original language	English
Pages (from-to)	1090-1093
Journal	Astronomy & Astrophysics
Volume	381
Issue number	3
DOIs	https://doi.org/10.1051/0004-6361:20011540
Publication status	Published - 2002

Subject classification (UKÄ)

Atom and Molecular Physics and Optics
Astronomy, Astrophysics and Cosmology

Free keywords

ATOMIC DATA
STARS: EVOLUTION
GALAXY: EVOLUTION

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10.1051/0004-6361:20011540

Nilsson_EDP2002

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@article{d5fced1c02ad4ee09cd9ea8f2af35230,

title = "Experimental oscillator strengths in U II of cosmological interest",

abstract = "Oscillator strengths for 57 U II lines in the region 3500-6700 {\AA}have been derived by combining new branching fraction measurements withrecently measured lifetimes. The lines combine six upper levels withnumerous low levels having excitation energies of 0-1.5 eV. The datainclude the U II line at 3859 {\AA}, which is used forcosmochronology.",

keywords = "ATOMIC DATA, STARS: EVOLUTION, GALAXY: EVOLUTION",

author = "Hampus Nilsson and Stefan Ivarsson and Sveneric Johansson and Hans Lundberg",

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language = "English",

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pages = "1090--1093",

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issn = "0004-6361",

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TY - JOUR

T1 - Experimental oscillator strengths in U II of cosmological interest

AU - Nilsson, Hampus

AU - Ivarsson, Stefan

AU - Johansson, Sveneric

AU - Lundberg, Hans

PY - 2002

Y1 - 2002

N2 - Oscillator strengths for 57 U II lines in the region 3500-6700 Åhave been derived by combining new branching fraction measurements withrecently measured lifetimes. The lines combine six upper levels withnumerous low levels having excitation energies of 0-1.5 eV. The datainclude the U II line at 3859 Å, which is used forcosmochronology.

AB - Oscillator strengths for 57 U II lines in the region 3500-6700 Åhave been derived by combining new branching fraction measurements withrecently measured lifetimes. The lines combine six upper levels withnumerous low levels having excitation energies of 0-1.5 eV. The datainclude the U II line at 3859 Å, which is used forcosmochronology.

KW - ATOMIC DATA

KW - STARS: EVOLUTION

KW - GALAXY: EVOLUTION

UR - https://www.scopus.com/pages/publications/0036184823

U2 - 10.1051/0004-6361:20011540

DO - 10.1051/0004-6361:20011540

M3 - Article

SN - 0004-6361

VL - 381

SP - 1090

EP - 1093

JO - Astronomy & Astrophysics

JF - Astronomy & Astrophysics

IS - 3

ER -

Experimental oscillator strengths in U II of cosmological interest

Abstract

Subject classification (UKÄ)

Free keywords

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Advances in Stellar Astrophysics from Laboratory Spectroscopy

Laboratory and stellar spectroscopy of the complex ions Fe+, Mo+, Th+ and U+

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