Journal articles on the topic 'Excitation rates'

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1

Canal, C. A. Garcia, E. M. Santangelo, and M. B. Gay Ducati. "Excitation rates of heavy quarks." Physical Review D 31, no. 11 (June 1, 1985): 2748–52. http://dx.doi.org/10.1103/physrevd.31.2748.

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2

Aggarwal, K. M., and F. P. Keenan. "Electron impact excitation of Fe XVI: radiative and excitation rates." Astronomy & Astrophysics 450, no. 3 (April 19, 2006): 1249–57. http://dx.doi.org/10.1051/0004-6361:20054683.

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3

Ramadan, Hassan, and Sabbah Elkilany. "Resonant Transfer Excitation of Fluorine-Like Mo33+ Ion." Zeitschrift für Naturforschung A 65, no. 6-7 (July 1, 2010): 599–605. http://dx.doi.org/10.1515/zna-2010-6-716.

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Dielectronic recombination (DR) cross sections (σDR) and rate coefficients (αDR) for Mo33+ are calculated using the angular momentum average scheme (AMA). Moreover, the resonant transfer excitation followed by X-ray emission (RTEX) cross sections (σ RTEX) for the collision of Mo33+ with H2 and He targets are calculated and studied. The calculations of the cross sections are performed for both K- and L-shell excitations. A smooth change with the temperatures for αDR is found for all kinds of excitations. The rates for K-shell excitation are very small in comparison with the rates for Lshell excitation. The RTEX cross sections for Mo33+ ions are obtained from their corresponding DR cross sections by the method of folding in the impulse approximation (IMA). σ RTEX for the K-shell excitation shows two overlapped peaks which may be attributed to the two groups in this excitation process. The present calculations are considered as a database for future comparison with theoretical and experimental data using other coupling schemes. Multiple Auger channels are complicating the dependence of the cross sections on principal quantum numbers.
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4

Dubernet, M. L., P. Valiron, F. Daniel, A. Grosjean, F. Lique, N. Feautrier, A. Spielfiedel, et al. "Collisional Excitation Rates in the ISM." Proceedings of the International Astronomical Union 1, S231 (March 21, 2006): 109. http://dx.doi.org/10.1017/s1743921306007095.

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5

Kingston, A. E., and M. A. Lennon. "Electron excitation rates for iron ions." Nuclear Fusion 27, S1 (January 1, 1987): 43–130. http://dx.doi.org/10.1088/0029-5515/27/s1/003.

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6

Aggarwal, K. M., F. P. Keenan, and K. D. Lawson. "Excitation rates for transitions in Kr XXXII." Journal of Physics: Conference Series 163 (April 1, 2009): 012038. http://dx.doi.org/10.1088/1742-6596/163/1/012038.

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7

Bugler-Lamb, S., and S. A. R. Horsley. "Polariton excitation rates from time dependent dielectrics." Journal of Physics B: Atomic, Molecular and Optical Physics 49, no. 23 (November 14, 2016): 235502. http://dx.doi.org/10.1088/0953-4075/49/23/235502.

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8

Aggarwal, K. M., F. P. Keenan, and K. D. Lawson. "Excitation rates for transitions in Kr XXVIII." Journal of Physics: Conference Series 194, no. 6 (November 1, 2009): 062008. http://dx.doi.org/10.1088/1742-6596/194/6/062008.

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9

Dubernet, M. L., and A. Grosjean. "Collisional excitation rates of H2O with H2." Astronomy & Astrophysics 390, no. 2 (July 12, 2002): 793–800. http://dx.doi.org/10.1051/0004-6361:20020800.

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10

Aggarwal, K. M., and F. P. Keenan. "Excitation rates for transitions in Ca XV." Astronomy & Astrophysics 407, no. 2 (August 2003): 769–78. http://dx.doi.org/10.1051/0004-6361:20030874.

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11

Grosjean, A., M. L. Dubernet, and C. Ceccarelli. "Collisional excitation rates of H2O with H2." Astronomy & Astrophysics 408, no. 3 (September 2003): 1197–203. http://dx.doi.org/10.1051/0004-6361:20030969.

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12

Arslanbekov, R. R., V. I. Kolobov, E. A. Bogdanov, and A. A. Kudryavtsev. "Nonmonotonic excitation rates in argon positive column." Applied Physics Letters 85, no. 16 (October 18, 2004): 3396–98. http://dx.doi.org/10.1063/1.1806557.

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13

Hsu, Tzu Chien, Jinian Shu, Yang Chen, Jim J. Lin, Yuan T. Lee, and Xueming Yang. "Dissociation rates of benzene at VUV excitation." Journal of Chemical Physics 115, no. 21 (December 2001): 9623–26. http://dx.doi.org/10.1063/1.1423945.

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14

Green, Sheldon, Sergio Maluendes, and A. D. McLean. "Improved collisional excitation rates for interstellar water." Astrophysical Journal Supplement Series 85 (March 1993): 181. http://dx.doi.org/10.1086/191760.

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15

LAMOUREUX, M., P. ALATERRE, and J. P. MATTE. "ELECTRON EXCITATION RATES IN NON-MAXWELLIAN PLASMAS." Le Journal de Physique Colloques 47, no. C6 (October 1986): C6–57—C6–61. http://dx.doi.org/10.1051/jphyscol:1986608.

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16

TIAN BO-GANG and LI JIA-MING. "ELECTRONIC IMPACT EXCITATION CROSS SECTIONS AND RATES (I)——SPIN ALLOWED EXCITATION PROCESSES." Acta Physica Sinica 35, no. 2 (1986): 203. http://dx.doi.org/10.7498/aps.35.203.

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17

Aggarwal, Kanti, Akinori Igarashi, Francis Keenan, and Shinobu Nakazaki. "Radiative Rates and Electron Impact Excitation Rates for Transitions in He II." Atoms 5, no. 4 (May 2, 2017): 19. http://dx.doi.org/10.3390/atoms5020019.

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18

Aggarwal, K. M., and F. P. Keenan. "Energy levels, radiative rates and excitation rates for transitions in Ni XI." Astronomy & Astrophysics 475, no. 1 (October 2, 2007): 393–99. http://dx.doi.org/10.1051/0004-6361:20078561.

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19

Aggarwal, K. M., and F. P. Keenan. "Energy levels, radiative rates, and excitation rates for transitions in O IV." Astronomy & Astrophysics 486, no. 3 (May 29, 2008): 1053–67. http://dx.doi.org/10.1051/0004-6361:20078741.

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20

Aggarwal, K. M., K. Hamada, A. Igarashi, V. Jonauskas, F. P. Keenan, and S. Nakazaki. "Radiative rates and electron impact excitation rates for H-like Fe XXVI." Astronomy & Astrophysics 484, no. 3 (April 16, 2008): 879–85. http://dx.doi.org/10.1051/0004-6361:200809823.

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21

Aggarwal, K. M., K. Hamada, A. Igarashi, V. Jonauskas, F. P. Keenan, and S. Nakazaki. "Radiative rates and electron impact excitation rates for H-like Ar XVIII." Astronomy & Astrophysics 487, no. 1 (May 29, 2008): 383–88. http://dx.doi.org/10.1051/0004-6361:200810001.

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22

Aggarwal, K. M., T. Kato, F. P. Keenan, and I. Murakami. "Radiative rates and electron impact excitation rates for transitions in Cr VIII." Astronomy & Astrophysics 506, no. 3 (August 27, 2009): 1501–9. http://dx.doi.org/10.1051/0004-6361/200912493.

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23

Gnatyuk, V. A. "Photoconductivity of ZnSe crystals under high excitation rates." Semiconductor Science and Technology 15, no. 6 (May 24, 2000): 523–28. http://dx.doi.org/10.1088/0268-1242/15/6/306.

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24

Sangwon Kang and T. R. Fischer. "Trellis excitation speech coding at low bit rates." IEEE Transactions on Communications 42, no. 2/3/4 (February 1994): 1902–10. http://dx.doi.org/10.1109/tcomm.1994.582900.

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25

Sarpal, B. K., and J. Tennyson. "Calculated vibrational excitation rates for electron - Formula collisions." Monthly Notices of the Royal Astronomical Society 263, no. 4 (August 15, 1993): 909–12. http://dx.doi.org/10.1093/mnras/263.4.909.

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26

Tayal, S. S. "Transition Probabilities and Electron Excitation Rates for Fexiv." Astrophysical Journal Supplement Series 178, no. 2 (October 2008): 359–73. http://dx.doi.org/10.1086/590345.

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27

Keenan, F. P., K. A. Berrington, P. G. Burke, P. L. Dufton, and A. E. Kingston. "Electron Impact Excitation Rates for Beryllium-Like Ions." Physica Scripta 34, no. 3 (September 1, 1986): 216–20. http://dx.doi.org/10.1088/0031-8949/34/3/007.

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28

Kimura, E., A. Ohsaki, S. Nakazaki, and Y. Itikawa. "Electron-impact excitation rates of Na-like ions." Astronomy and Astrophysics Supplement Series 132, no. 1 (October 1998): 99–105. http://dx.doi.org/10.1051/aas:1998362.

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29

Baggio-Scheid, V. H., A. C. J. Paes, and J. W. Neri. "Study of excitation rates in a hollow cathode discharge." Brazilian Journal of Physics 33, no. 2 (June 2003): 336–39. http://dx.doi.org/10.1590/s0103-97332003000200035.

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30

Pradhan, Anil K., and Hong L. Zhang. "New excitation rates and line ratios for (Fe II)." Astrophysical Journal 409 (June 1993): L77. http://dx.doi.org/10.1086/186864.

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31

Aggarwal, Kanti M., and Francis P. Keenan. "Electron impact excitation rates for transitions in Mg V." Canadian Journal of Physics 95, no. 1 (January 2017): 9–20. http://dx.doi.org/10.1139/cjp-2016-0490.

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Energy levels, radiative rates (A-values), and lifetimes, calculated with the GRASP code, are reported for an astrophysically important O-like ion, Mg V. Results are presented for transitions among the lowest 86 levels belonging to the 2s22p4, 2s2p5, 2p6, and 2s22p33[Formula: see text] configurations. There is satisfactory agreement with earlier data for most levels and transitions, but scope remains for improvement. Collision strengths are also calculated, with the DARC code, and the results obtained are comparable for most transitions (at energies above thresholds) with earlier work using the DW code. In the threshold region, resonances have been resolved in a fine energy mesh to determine values of effective collision strengths (Υ) as accurately as possible. Results are reported for all transitions at temperatures up to 106 K, which should be sufficient for most astrophysical applications. However, a comparison with earlier data reveals discrepancies of up to two orders of magnitude for over 60% of transitions, at all temperatures. The reasons for these discrepancies are discussed in detail.
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32

Tayal, S. S., and A. M. Sossah. "Collision rates for electron excitation of Mg V lines." Astronomy & Astrophysics 574 (January 29, 2015): A87. http://dx.doi.org/10.1051/0004-6361/201425135.

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33

Ellis, John, R. A. Flores, and J. D. Lewin. "Rates for inelastic nuclear excitation by dark matter particles." Physics Letters B 212, no. 3 (September 1988): 375–80. http://dx.doi.org/10.1016/0370-2693(88)91332-9.

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34

Aggarwal, Kanti M., and Francis P. Keenan. "Energy levels, radiative rates and electron impact excitation rates for transitions in C iii." Monthly Notices of the Royal Astronomical Society 450, no. 2 (April 22, 2015): 1151–63. http://dx.doi.org/10.1093/mnras/stv684.

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35

Aggarwal, K. M., and F. P. Keenan. "Energy levels, radiative rates, and electron impact excitation rates for transitions in O VII." Astronomy & Astrophysics 489, no. 3 (August 18, 2008): 1377–88. http://dx.doi.org/10.1051/0004-6361:200810531.

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36

Aggarwal, Kanti M., and Francis P. Keenan. "Energy levels, radiative rates and electron impact excitation rates for transitions in Si ii." Monthly Notices of the Royal Astronomical Society 442, no. 1 (June 6, 2014): 388–400. http://dx.doi.org/10.1093/mnras/stu883.

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37

Aggarwal, Kanti M., and Francis P. Keenan. "Energy levels, radiative rates and electron impact excitation rates for transitions in Fe xiv." Monthly Notices of the Royal Astronomical Society 445, no. 2 (October 14, 2014): 2015–27. http://dx.doi.org/10.1093/mnras/stu1908.

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38

Aggarwal, Kanti M. "Energy levels, radiative rates and electron impact excitation rates for transitions in Si III." Atomic Data and Nuclear Data Tables 117-118 (September 2017): 320–424. http://dx.doi.org/10.1016/j.adt.2016.11.001.

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39

Li, Y. T., R. Si, J. Q. Li, C. Y. Zhang, K. Yao, K. Wang, M. F. Gu, and C. Y. Chen. "Energy levels, transition rates and electron impact excitation rates for B-like Kr XXXII." Atomic Data and Nuclear Data Tables 133-134 (May 2020): 101339. http://dx.doi.org/10.1016/j.adt.2020.101339.

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40

Aggarwal, Kanti M., and Francis P. Keenan. "Energy levels, radiative rates and electron impact excitation rates for transitions in Al x★." Monthly Notices of the Royal Astronomical Society 438, no. 2 (December 2013): 1223–32. http://dx.doi.org/10.1093/mnras/stt2268.

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41

Tayal, S. S., and O. Zatsarinny. "Transition and Electron Impact Excitation Collision Rates for O iii." Astrophysical Journal 850, no. 2 (November 28, 2017): 147. http://dx.doi.org/10.3847/1538-4357/aa9613.

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42

Rabadán, Ismanuel, Baljit K. Sarpal, and Jonathan Tennyson. "Calculated rotational and vibrational excitation rates for electron—HeH+ collisions." Monthly Notices of the Royal Astronomical Society 299, no. 1 (August 1998): 171–75. http://dx.doi.org/10.1046/j.1365-8711.1998.01741.x.

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43

Campbell, L., H. Kato, M. J. Brunger, and M. D. Bradshaw. "Electron-impact excitation heating rates in the atmosphere of Titan." Journal of Geophysical Research: Space Physics 115, A9 (September 2010): n/a. http://dx.doi.org/10.1029/2010ja015482.

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44

Samadi, R., F. Kupka, M. J. Goupil, Y. Lebreton, and C. van't Veer-Menneret. "Influence of local treatments of convection upon solarpmode excitation rates." Astronomy & Astrophysics 445, no. 1 (December 13, 2005): 233–42. http://dx.doi.org/10.1051/0004-6361:20052904.

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45

Jones, D. B., L. Campbell, M. J. Bottema, and M. J. Brunger. "New electron-energy transfer rates for vibrational excitation of O2." New Journal of Physics 5 (September 25, 2003): 114. http://dx.doi.org/10.1088/1367-2630/5/1/114.

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46

Tayal, S. S. "Electron Impact Excitation Collision Strengths and Rates for P ii." Astrophysical Journal Supplement Series 150, no. 2 (February 2004): 465–77. http://dx.doi.org/10.1086/380784.

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47

Hill, K. W., M. Bitter, S. von Goeler, H. Hsuan, R. Hulse, L. C. Johnson, P. Lasalle, et al. "Excitation rates for plasma impurity measurements by x‐ray diagnostics." Review of Scientific Instruments 59, no. 8 (August 1988): 1825–27. http://dx.doi.org/10.1063/1.1140072.

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48

Hill, K. W., M. Bitter, S. von Goeler, S. Hiroe, R. Hulse, A. T. Ramsey, S. Sesnic, M. Shimada, and B. C. Stratton. "Effective Kα x‐ray excitation rates for plasma impurity measurements." Review of Scientific Instruments 57, no. 8 (August 1986): 2151–53. http://dx.doi.org/10.1063/1.1138713.

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49

Chen, Mau Hsiung, and Bernd Crasemann. "Resonance enhancement of electron-impact excitation rates for argonlike ions." Physical Review A 43, no. 11 (June 1, 1991): 5886–90. http://dx.doi.org/10.1103/physreva.43.5886.

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50

Loureiro, J., and C. M. Ferreira. "Electron excitation rates and transport parameters in direct-current N2discharges." Journal of Physics D: Applied Physics 22, no. 1 (January 14, 1989): 67–75. http://dx.doi.org/10.1088/0022-3727/22/1/009.

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