Abstract

Radiative lifetimes for 14 odd-parity levels with the energy range between 31,654.79 and 47,184.52cm1 of Mo I have been measured using the time-resolved laser-induced fluorescence technique. The lifetime values range from 7.7 to 53.6 ns. Branching fraction measurements of these levels were performed based on the emission spectrum of a hollow cathode lamp. By combining the measured lifetimes and branching fractions, absolute transition probabilities and oscillator strengths for 130 transitions in the wavelength range extending from 275.430 to 600.478 nm have been derived.

© 2013 Optical Society of America

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  1. F. Thévenin, “Oscillator strengths from the solar spectrum,” Astron. Astrophys. Suppl. Ser. 77, 137–154 (1989).
  2. C. R. Cowley and G. Mathys, “Line identifications and preliminary abundances from the red spectrum of HD 101065 (Przybylski’s star),” Astron. Astrophys. 339, 165–169 (1998).
  3. M. Baumann, H. Liening, and H. Lindel, “Lifetime measurements of some excited states of the 4d55p and 4d45s5p configurations in the Mo I spectrum,” Phys. Lett. 68A, 319–320 (1978).
    [CrossRef]
  4. D. W. Duquette, S. Salih, and J. E. Lawler, “Radiative lifetimes in Mo I using a novel atomic beam source,” Phys. Lett. 83A, 214–216 (1981).
    [CrossRef]
  5. M. Kwiatkowski, G. Micali, K. Werner, and P. Zimmermann, “Radiative lifetimes and oscillator strengths in Mo I,” Phys. Lett. 85A, 273–274 (1981).
    [CrossRef]
  6. J. Rudolph and V. Helbig, “Radiative lifetimes in Nb I and Mo I using a novel atomic beam source,” Phys. Lett. 89A, 339–341 (1982).
    [CrossRef]
  7. W. Whaling, P. Chevako, and J. E. Lawler, “Lifetimes, branching ratios and transition probabilities in molybdenum I,” J. Quant. Spectrosc. Radiat. Transfer 36, 491–496 (1986).
    [CrossRef]
  8. W. Whaling and J. W. Brault, “Comprehensive transition probabilities in Mo I,” Phys. Scr. 38, 707–718 (1988).
    [CrossRef]
  9. W. Whaling, P. Hannaford, R. M. Lowe, E. Biémont, and N. Grevesse, “Lifetimes, branching ratios, and transition probabilities in Mo I,” J. Quant. Spectrosc. Radiat. Transfer 32, 69–80 (1984).
    [CrossRef]
  10. S. E. Schnehage, K. Danzmann, R. Künnemeyer, and M. Kock, “Oscillator strengths of neutral and singly ionised molybdenum,” J. Quant. Spectrosc. Radiat. Transfer 29, 507–516 (1983).
    [CrossRef]
  11. Y. Y. Feng, L. Y. Jiang, Q. Wang, W. Zhang, Z. K. Jiang, and Z. W. Dai, “Radiative lifetimes of highly excited even-parity levels in Gd I and Gd II,” Mon. Not. R. Astron. Soc. 418, 998–1003 (2011).
    [CrossRef]
  12. W. Whaling, M. T. Carle, and M. L. Piti, “Argon branching ratios for spectrometer response calibration,” J. Quant. Spectrosc. Radiat. Transfer 50, 7–18 (1993).
    [CrossRef]
  13. J. Sugar and A. Musgrove, “Energy levels of molybdenum, Mo I through Mo XLII,” J. Phys. Chem. Ref. Data 17, 155–239(1988).
    [CrossRef]

2011 (1)

Y. Y. Feng, L. Y. Jiang, Q. Wang, W. Zhang, Z. K. Jiang, and Z. W. Dai, “Radiative lifetimes of highly excited even-parity levels in Gd I and Gd II,” Mon. Not. R. Astron. Soc. 418, 998–1003 (2011).
[CrossRef]

1998 (1)

C. R. Cowley and G. Mathys, “Line identifications and preliminary abundances from the red spectrum of HD 101065 (Przybylski’s star),” Astron. Astrophys. 339, 165–169 (1998).

1993 (1)

W. Whaling, M. T. Carle, and M. L. Piti, “Argon branching ratios for spectrometer response calibration,” J. Quant. Spectrosc. Radiat. Transfer 50, 7–18 (1993).
[CrossRef]

1989 (1)

F. Thévenin, “Oscillator strengths from the solar spectrum,” Astron. Astrophys. Suppl. Ser. 77, 137–154 (1989).

1988 (2)

W. Whaling and J. W. Brault, “Comprehensive transition probabilities in Mo I,” Phys. Scr. 38, 707–718 (1988).
[CrossRef]

J. Sugar and A. Musgrove, “Energy levels of molybdenum, Mo I through Mo XLII,” J. Phys. Chem. Ref. Data 17, 155–239(1988).
[CrossRef]

1986 (1)

W. Whaling, P. Chevako, and J. E. Lawler, “Lifetimes, branching ratios and transition probabilities in molybdenum I,” J. Quant. Spectrosc. Radiat. Transfer 36, 491–496 (1986).
[CrossRef]

1984 (1)

W. Whaling, P. Hannaford, R. M. Lowe, E. Biémont, and N. Grevesse, “Lifetimes, branching ratios, and transition probabilities in Mo I,” J. Quant. Spectrosc. Radiat. Transfer 32, 69–80 (1984).
[CrossRef]

1983 (1)

S. E. Schnehage, K. Danzmann, R. Künnemeyer, and M. Kock, “Oscillator strengths of neutral and singly ionised molybdenum,” J. Quant. Spectrosc. Radiat. Transfer 29, 507–516 (1983).
[CrossRef]

1982 (1)

J. Rudolph and V. Helbig, “Radiative lifetimes in Nb I and Mo I using a novel atomic beam source,” Phys. Lett. 89A, 339–341 (1982).
[CrossRef]

1981 (2)

D. W. Duquette, S. Salih, and J. E. Lawler, “Radiative lifetimes in Mo I using a novel atomic beam source,” Phys. Lett. 83A, 214–216 (1981).
[CrossRef]

M. Kwiatkowski, G. Micali, K. Werner, and P. Zimmermann, “Radiative lifetimes and oscillator strengths in Mo I,” Phys. Lett. 85A, 273–274 (1981).
[CrossRef]

1978 (1)

M. Baumann, H. Liening, and H. Lindel, “Lifetime measurements of some excited states of the 4d55p and 4d45s5p configurations in the Mo I spectrum,” Phys. Lett. 68A, 319–320 (1978).
[CrossRef]

Baumann, M.

M. Baumann, H. Liening, and H. Lindel, “Lifetime measurements of some excited states of the 4d55p and 4d45s5p configurations in the Mo I spectrum,” Phys. Lett. 68A, 319–320 (1978).
[CrossRef]

Biémont, E.

W. Whaling, P. Hannaford, R. M. Lowe, E. Biémont, and N. Grevesse, “Lifetimes, branching ratios, and transition probabilities in Mo I,” J. Quant. Spectrosc. Radiat. Transfer 32, 69–80 (1984).
[CrossRef]

Brault, J. W.

W. Whaling and J. W. Brault, “Comprehensive transition probabilities in Mo I,” Phys. Scr. 38, 707–718 (1988).
[CrossRef]

Carle, M. T.

W. Whaling, M. T. Carle, and M. L. Piti, “Argon branching ratios for spectrometer response calibration,” J. Quant. Spectrosc. Radiat. Transfer 50, 7–18 (1993).
[CrossRef]

Chevako, P.

W. Whaling, P. Chevako, and J. E. Lawler, “Lifetimes, branching ratios and transition probabilities in molybdenum I,” J. Quant. Spectrosc. Radiat. Transfer 36, 491–496 (1986).
[CrossRef]

Cowley, C. R.

C. R. Cowley and G. Mathys, “Line identifications and preliminary abundances from the red spectrum of HD 101065 (Przybylski’s star),” Astron. Astrophys. 339, 165–169 (1998).

Dai, Z. W.

Y. Y. Feng, L. Y. Jiang, Q. Wang, W. Zhang, Z. K. Jiang, and Z. W. Dai, “Radiative lifetimes of highly excited even-parity levels in Gd I and Gd II,” Mon. Not. R. Astron. Soc. 418, 998–1003 (2011).
[CrossRef]

Danzmann, K.

S. E. Schnehage, K. Danzmann, R. Künnemeyer, and M. Kock, “Oscillator strengths of neutral and singly ionised molybdenum,” J. Quant. Spectrosc. Radiat. Transfer 29, 507–516 (1983).
[CrossRef]

Duquette, D. W.

D. W. Duquette, S. Salih, and J. E. Lawler, “Radiative lifetimes in Mo I using a novel atomic beam source,” Phys. Lett. 83A, 214–216 (1981).
[CrossRef]

Feng, Y. Y.

Y. Y. Feng, L. Y. Jiang, Q. Wang, W. Zhang, Z. K. Jiang, and Z. W. Dai, “Radiative lifetimes of highly excited even-parity levels in Gd I and Gd II,” Mon. Not. R. Astron. Soc. 418, 998–1003 (2011).
[CrossRef]

Grevesse, N.

W. Whaling, P. Hannaford, R. M. Lowe, E. Biémont, and N. Grevesse, “Lifetimes, branching ratios, and transition probabilities in Mo I,” J. Quant. Spectrosc. Radiat. Transfer 32, 69–80 (1984).
[CrossRef]

Hannaford, P.

W. Whaling, P. Hannaford, R. M. Lowe, E. Biémont, and N. Grevesse, “Lifetimes, branching ratios, and transition probabilities in Mo I,” J. Quant. Spectrosc. Radiat. Transfer 32, 69–80 (1984).
[CrossRef]

Helbig, V.

J. Rudolph and V. Helbig, “Radiative lifetimes in Nb I and Mo I using a novel atomic beam source,” Phys. Lett. 89A, 339–341 (1982).
[CrossRef]

Jiang, L. Y.

Y. Y. Feng, L. Y. Jiang, Q. Wang, W. Zhang, Z. K. Jiang, and Z. W. Dai, “Radiative lifetimes of highly excited even-parity levels in Gd I and Gd II,” Mon. Not. R. Astron. Soc. 418, 998–1003 (2011).
[CrossRef]

Jiang, Z. K.

Y. Y. Feng, L. Y. Jiang, Q. Wang, W. Zhang, Z. K. Jiang, and Z. W. Dai, “Radiative lifetimes of highly excited even-parity levels in Gd I and Gd II,” Mon. Not. R. Astron. Soc. 418, 998–1003 (2011).
[CrossRef]

Kock, M.

S. E. Schnehage, K. Danzmann, R. Künnemeyer, and M. Kock, “Oscillator strengths of neutral and singly ionised molybdenum,” J. Quant. Spectrosc. Radiat. Transfer 29, 507–516 (1983).
[CrossRef]

Künnemeyer, R.

S. E. Schnehage, K. Danzmann, R. Künnemeyer, and M. Kock, “Oscillator strengths of neutral and singly ionised molybdenum,” J. Quant. Spectrosc. Radiat. Transfer 29, 507–516 (1983).
[CrossRef]

Kwiatkowski, M.

M. Kwiatkowski, G. Micali, K. Werner, and P. Zimmermann, “Radiative lifetimes and oscillator strengths in Mo I,” Phys. Lett. 85A, 273–274 (1981).
[CrossRef]

Lawler, J. E.

W. Whaling, P. Chevako, and J. E. Lawler, “Lifetimes, branching ratios and transition probabilities in molybdenum I,” J. Quant. Spectrosc. Radiat. Transfer 36, 491–496 (1986).
[CrossRef]

D. W. Duquette, S. Salih, and J. E. Lawler, “Radiative lifetimes in Mo I using a novel atomic beam source,” Phys. Lett. 83A, 214–216 (1981).
[CrossRef]

Liening, H.

M. Baumann, H. Liening, and H. Lindel, “Lifetime measurements of some excited states of the 4d55p and 4d45s5p configurations in the Mo I spectrum,” Phys. Lett. 68A, 319–320 (1978).
[CrossRef]

Lindel, H.

M. Baumann, H. Liening, and H. Lindel, “Lifetime measurements of some excited states of the 4d55p and 4d45s5p configurations in the Mo I spectrum,” Phys. Lett. 68A, 319–320 (1978).
[CrossRef]

Lowe, R. M.

W. Whaling, P. Hannaford, R. M. Lowe, E. Biémont, and N. Grevesse, “Lifetimes, branching ratios, and transition probabilities in Mo I,” J. Quant. Spectrosc. Radiat. Transfer 32, 69–80 (1984).
[CrossRef]

Mathys, G.

C. R. Cowley and G. Mathys, “Line identifications and preliminary abundances from the red spectrum of HD 101065 (Przybylski’s star),” Astron. Astrophys. 339, 165–169 (1998).

Micali, G.

M. Kwiatkowski, G. Micali, K. Werner, and P. Zimmermann, “Radiative lifetimes and oscillator strengths in Mo I,” Phys. Lett. 85A, 273–274 (1981).
[CrossRef]

Musgrove, A.

J. Sugar and A. Musgrove, “Energy levels of molybdenum, Mo I through Mo XLII,” J. Phys. Chem. Ref. Data 17, 155–239(1988).
[CrossRef]

Piti, M. L.

W. Whaling, M. T. Carle, and M. L. Piti, “Argon branching ratios for spectrometer response calibration,” J. Quant. Spectrosc. Radiat. Transfer 50, 7–18 (1993).
[CrossRef]

Rudolph, J.

J. Rudolph and V. Helbig, “Radiative lifetimes in Nb I and Mo I using a novel atomic beam source,” Phys. Lett. 89A, 339–341 (1982).
[CrossRef]

Salih, S.

D. W. Duquette, S. Salih, and J. E. Lawler, “Radiative lifetimes in Mo I using a novel atomic beam source,” Phys. Lett. 83A, 214–216 (1981).
[CrossRef]

Schnehage, S. E.

S. E. Schnehage, K. Danzmann, R. Künnemeyer, and M. Kock, “Oscillator strengths of neutral and singly ionised molybdenum,” J. Quant. Spectrosc. Radiat. Transfer 29, 507–516 (1983).
[CrossRef]

Sugar, J.

J. Sugar and A. Musgrove, “Energy levels of molybdenum, Mo I through Mo XLII,” J. Phys. Chem. Ref. Data 17, 155–239(1988).
[CrossRef]

Thévenin, F.

F. Thévenin, “Oscillator strengths from the solar spectrum,” Astron. Astrophys. Suppl. Ser. 77, 137–154 (1989).

Wang, Q.

Y. Y. Feng, L. Y. Jiang, Q. Wang, W. Zhang, Z. K. Jiang, and Z. W. Dai, “Radiative lifetimes of highly excited even-parity levels in Gd I and Gd II,” Mon. Not. R. Astron. Soc. 418, 998–1003 (2011).
[CrossRef]

Werner, K.

M. Kwiatkowski, G. Micali, K. Werner, and P. Zimmermann, “Radiative lifetimes and oscillator strengths in Mo I,” Phys. Lett. 85A, 273–274 (1981).
[CrossRef]

Whaling, W.

W. Whaling, M. T. Carle, and M. L. Piti, “Argon branching ratios for spectrometer response calibration,” J. Quant. Spectrosc. Radiat. Transfer 50, 7–18 (1993).
[CrossRef]

W. Whaling and J. W. Brault, “Comprehensive transition probabilities in Mo I,” Phys. Scr. 38, 707–718 (1988).
[CrossRef]

W. Whaling, P. Chevako, and J. E. Lawler, “Lifetimes, branching ratios and transition probabilities in molybdenum I,” J. Quant. Spectrosc. Radiat. Transfer 36, 491–496 (1986).
[CrossRef]

W. Whaling, P. Hannaford, R. M. Lowe, E. Biémont, and N. Grevesse, “Lifetimes, branching ratios, and transition probabilities in Mo I,” J. Quant. Spectrosc. Radiat. Transfer 32, 69–80 (1984).
[CrossRef]

Zhang, W.

Y. Y. Feng, L. Y. Jiang, Q. Wang, W. Zhang, Z. K. Jiang, and Z. W. Dai, “Radiative lifetimes of highly excited even-parity levels in Gd I and Gd II,” Mon. Not. R. Astron. Soc. 418, 998–1003 (2011).
[CrossRef]

Zimmermann, P.

M. Kwiatkowski, G. Micali, K. Werner, and P. Zimmermann, “Radiative lifetimes and oscillator strengths in Mo I,” Phys. Lett. 85A, 273–274 (1981).
[CrossRef]

Astron. Astrophys. (1)

C. R. Cowley and G. Mathys, “Line identifications and preliminary abundances from the red spectrum of HD 101065 (Przybylski’s star),” Astron. Astrophys. 339, 165–169 (1998).

Astron. Astrophys. Suppl. Ser. (1)

F. Thévenin, “Oscillator strengths from the solar spectrum,” Astron. Astrophys. Suppl. Ser. 77, 137–154 (1989).

J. Phys. Chem. Ref. Data (1)

J. Sugar and A. Musgrove, “Energy levels of molybdenum, Mo I through Mo XLII,” J. Phys. Chem. Ref. Data 17, 155–239(1988).
[CrossRef]

J. Quant. Spectrosc. Radiat. Transfer (4)

W. Whaling, M. T. Carle, and M. L. Piti, “Argon branching ratios for spectrometer response calibration,” J. Quant. Spectrosc. Radiat. Transfer 50, 7–18 (1993).
[CrossRef]

W. Whaling, P. Chevako, and J. E. Lawler, “Lifetimes, branching ratios and transition probabilities in molybdenum I,” J. Quant. Spectrosc. Radiat. Transfer 36, 491–496 (1986).
[CrossRef]

W. Whaling, P. Hannaford, R. M. Lowe, E. Biémont, and N. Grevesse, “Lifetimes, branching ratios, and transition probabilities in Mo I,” J. Quant. Spectrosc. Radiat. Transfer 32, 69–80 (1984).
[CrossRef]

S. E. Schnehage, K. Danzmann, R. Künnemeyer, and M. Kock, “Oscillator strengths of neutral and singly ionised molybdenum,” J. Quant. Spectrosc. Radiat. Transfer 29, 507–516 (1983).
[CrossRef]

Mon. Not. R. Astron. Soc. (1)

Y. Y. Feng, L. Y. Jiang, Q. Wang, W. Zhang, Z. K. Jiang, and Z. W. Dai, “Radiative lifetimes of highly excited even-parity levels in Gd I and Gd II,” Mon. Not. R. Astron. Soc. 418, 998–1003 (2011).
[CrossRef]

Phys. Lett. (4)

M. Baumann, H. Liening, and H. Lindel, “Lifetime measurements of some excited states of the 4d55p and 4d45s5p configurations in the Mo I spectrum,” Phys. Lett. 68A, 319–320 (1978).
[CrossRef]

D. W. Duquette, S. Salih, and J. E. Lawler, “Radiative lifetimes in Mo I using a novel atomic beam source,” Phys. Lett. 83A, 214–216 (1981).
[CrossRef]

M. Kwiatkowski, G. Micali, K. Werner, and P. Zimmermann, “Radiative lifetimes and oscillator strengths in Mo I,” Phys. Lett. 85A, 273–274 (1981).
[CrossRef]

J. Rudolph and V. Helbig, “Radiative lifetimes in Nb I and Mo I using a novel atomic beam source,” Phys. Lett. 89A, 339–341 (1982).
[CrossRef]

Phys. Scr. (1)

W. Whaling and J. W. Brault, “Comprehensive transition probabilities in Mo I,” Phys. Scr. 38, 707–718 (1988).
[CrossRef]

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Tables (3)

Tables Icon

Table 1. Branching Fractions of the Ar II 4dP5/24 Level

Tables Icon

Table 2. Radiative Lifetimes for 14 Odd-Parity Levels of Mo I and Comparison with Previous Results

Tables Icon

Table 3. Branching Fractions (Rki), Transition Probabilities (gkAki), and Oscillator Strengths (log(gifik)) of Mo I Levels

Equations (3)

Equations on this page are rendered with MathJax. Learn more.

Rki=IkimIkm=Iki/ukimIkm/ukm,
Aki=Rkiτk,
gifik=10.66702σki2gkAki,

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