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Home All issues Volume 525 (January 2011) A&A, 525 (2011) A59 Full HTML
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Table 1

K-vacancy level energies for Al ions with electron number 2 ≤ N ≤ 4.

N Levelb Energy (keV)
NISTa HFRb ASc MCDFd DHSe
2 1s2s   3S1 1.5749787 1.5745 1.5738 1.5724
2 1.5879705 1.5874 1.5871 1.5854
2 1.5881244 1.5877 1.5873 1.5856
2 1.5887598 1.5884 1.5879 1.5862
2 1s2s   1S0 1.5889516 1.5890 1.5888 1.5870
2 1.5982902 1.5983 1.5978 1.5961
3 1s2s2   2S1/2 1.55717 1.5567 1.5568 1.5550
3 1.562848 1.5621 1.5623 1.5604 1.5618
3 1.563041 1.5624 1.5625 1.5606 1.5620
3 1.563524 1.5629 1.5629 1.5611 1.5624
3 1.57963 1.5796 1.5800 1.5778 1.5793
3 1.58003 1.5800 1.5804 1.5782 1.5797
3 1s(2S)2p2(3P)   4P1/2 1.586065 1.5855 1.5857 1.5837
3 1s(2S)2p2(3P)   4P3/2 1.586389 1.5858 1.5860 1.5840
3 1s(2S)2p2(3P)   4P5/2 1.586748 1.5863 1.5863 1.5844
3 1.58753 1.5881 1.5887 1.5869 1.5882
3 1.58772 1.5883 1.5888 1.5870 1.5884
3 1s(2S)2p2(1D)   2D3/2 1.59687 1.5971 1.5977 1.5956
3 1s(2S)2p2(1D)   2D5/2 1.59673 1.5971 1.5975 1.5955
3 1s(2S)2p2(3P)   2P1/2 1.59961 1.5998 1.6001 1.5979
3 1s(2S)2p2(3P)   2P3/2 1.60029 1.6005 1.6008 1.5986
3 1s(2S)2p2(1S)   2S1/2 1.61215 1.6130 1.6135 1.6115
4 1.5551 1.5555 1.5542
4 1.5553 1.5556 1.5543
4 1.5559 1.5561 1.5548
4 1s(2S)2s2p2(4P)   5P1 1.5591 1.5592 1.5577
4 1s(2S)2s2p2(4P)   5P2 1.5594 1.5595 1.5580
4 1s(2S)2s2p2(4P)   5P3 1.5598 1.5598 1.5583
4 1.56467 1.5649 1.5652 1.5637
4 1s(2S)2s2p2(4P)   3P0 1.57946 1.5797 1.5801 1.5781
4 1s(2S)2s2p2(2D)   3D1 1.57927 1.5798 1.5802 1.5783
4 1s(2S)2s2p2(2D)   3D2 1.57921 1.5798 1.5802 1.5785
4 1s(2S)2s2p2(2D)   3D3 1.57912 1.5799 1.5802 1.5787
4 1s(2S)2s2p2(4P)   3P1 1.57973 1.5801 1.5805 1.5789
4 1s(2S)2s2p2(4P)   3P2 1.58014 1.5805 1.5808 1.5790
4 1s(2S)2s2p2(2S)   3S1 1.5898 1.5899 1.5884
4 1.5922 1.5922 1.5905
4 1s(2S)2s2p2(2D)   1D2 1.59193 1.5931 1.5937 1.5919
4 1s(2S)2s2p2(2P)   3P0 1.5938 1.5945 1.5931
4 1s(2S)2s2p2(2P)   3P1 1.5941 1.5947 1.5934
4 1s(2S)2s2p2(2P)   3P2 1.59306 1.5945 1.5951 1.5937
4 1s(2S)2s2p2(2P)   1P1 1.6001 1.6017 1.6023 1.6007
4 1s(2S)2s2p2(2S)   1S0 1.6031 1.6036 1.6017
4 1.60484 1.6057 1.6064 1.6046
4 1.60483 1.6057 1.6064 1.6046
4 1.60465 1.6058 1.6063 1.6045
4 1.6098 1.6101 1.6081
4 1.61294 1.6145 1.6151 1.6133
4 1.6155 1.6162 1.6145
4 1.6155 1.6161 1.6144
4 1.6144 1.6157 1.6162 1.6146
4 1.62261 1.6244 1.6251 1.6233

Notes. 

(a)

NIST database (Ralchenko et al. 2008). Level energies are determined by interpolation or extrapolation of known experimental values.

(b)

HFR calculation (this work).

(c)

AUTOSTRUCTURE calculation (this work).

(d)

MCDF calculation (this work).

(e)

DHS calculation (Chen et al. 1981b).

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