Search Results - "AGGARWAL, K. M"

Refine Results
  1. 1

    An investigation of Fe xvi emission lines in solar and stellar extreme‐ultraviolet and soft X‐ray spectra by Keenan, F. P., Drake, J. J., Aggarwal, K. M.

    “…New fully relativistic calculations of radiative rates and electron impact excitation cross‐sections for Fe xvi are used to determine theoretical emission‐line…”
    Get full text
    Journal Article
  2. 2

    Emission lines of Fe xi in the 257–407 Å wavelength region observed in solar spectra from EIS/Hinode and SERTS by Keenan, F. P., Milligan, R. O., Jess, D. B., Aggarwal, K. M., Mathioudakis, M., Thomas, R. J., Brosius, J. W., Davila, J. M.

    “…Theoretical emission-line ratios involving Fe xi transitions in the 257–407 Å wavelength range are derived using fully relativistic calculations of radiative…”
    Get full text
    Journal Article
  3. 3

    Emission lines of Fe x in active region spectra obtained with the Solar Extreme-ultraviolet Research Telescope and Spectrograph by Keenan, F. P., Jess, D. B., Aggarwal, K. M., Thomas, R. J., Brosius, J. W., Davila, J. M.

    “…Fully relativistic calculations of radiative rates and electron impact excitation cross-sections for Fe x are used to derive theoretical emission-line ratios…”
    Get full text
    Journal Article
  4. 4

    Electron impact excitation of N iv: calculations with the darc code and a comparison with ICFT results by Aggarwal, K M, Keenan, F P, Lawson, K D

    “…There have been discussions in the recent literature regarding the accuracy of the available electron impact excitation rates (equivalently effective collision…”
    Get full text
    Journal Article
  5. 5
  6. 6
  7. 7

    Soft X-Ray Emission Lines of Fe XV in Solar Flare Observations and the Chandra Spectrum of Capella by Keenan, F. P, Drake, J. J, Chung, S, Brickhouse, N. S, Aggarwal, K. M, Msezane, A. Z, Ryans, R. S. I, Bloomfield, D. S

    Published in The Astrophysical journal (01-07-2006)
    “…Recent calculations of atomic data for Fe XV have been used to generate theoretical line ratios involving n = 3-4 transitions in the soft X-ray spectral region…”
    Get full text
    Journal Article
  8. 8

    Fe XI Emission Lines in a High-Resolution Extreme-Ultraviolet Active Region Spectrum Obtained by the Solar Extreme Ultraviolet Research Telescope and Spectrograph by Keenan, F. P, Aggarwal, K. M, Ryans, R. S. I, Milligan, R. O, Bloomfield, D. S, Brosius, J. W, Davila, J. M, Thomas, R. J

    Published in The Astrophysical journal (01-05-2005)
    “…New calculations of radiative rates and electron impact excitation cross sections for Fe XI are used to derive emission-line intensity ratios involving 3s…”
    Get full text
    Journal Article
  9. 9

    Emission lines of Fe xv in spectra obtained with the Solar Extreme-Ultraviolet Research Telescope and Spectrograph by Keenan, F. P., Aggarwal, K. M., Milligan, R. O., Ryans, R. S. I., Bloomfield, D. S., Srigengan, V., O'Mullane, M. G., Lawson, K. D., Msezane, A. Z., Brosius, J. W., Davila, J. M., Thomas, R. J.

    “…Recent R-matrix calculations of electron impact excitation rates in Mg-like Fe xv are used to derive theoretical emission-line ratios involving transitions in…”
    Get full text
    Journal Article
  10. 10

    Electron impact excitation of S-like iron by Aggarwal, Kanti M., Keenan, Francis P.

    “…Energy levels and radiative rates for transitions among the lowest 48 fine-structure levels belonging to the (1s22s22p6) 3s23p4, 3s3p5, 3s23p33d and 3p6…”
    Get full text
    Journal Article
  11. 11

    Energy levels and radiative rates for transitions in Ti VI by Aggarwal, K M, Keenan, F P, Msezane, A Z

    Published in Physica scripta (01-08-2013)
    “…We report on calculations of energy levels, radiative rates, oscillator strengths and line strengths for transitions among the lowest 253 levels of the…”
    Get full text
    Journal Article
  12. 12

    Electron collisional excitation of argon-like Ni XI using the Breit-Pauli R-matrix method: [Eur. Phys. J. D 42, 235–241 (2007)] Electron impact excitation of Ni XI by Aggarwal, K. M., Keenan, F. P.

    “… In a recent paper, Verma et al. [Eur. Phys. J. D 42 , 235 (2007)] have reported results for energy levels, radiative rates, collision strengths, and…”
    Get full text
    Journal Article
  13. 13
  14. 14

    Energy levels, radiative rates and electron impact excitation rates for transitions in He-like N VI, F VIII and Na X by Aggarwal, K M, Keenan, F P, Heeter, R F

    Published in Physica scripta (01-10-2009)
    “…In this paper, we report calculations for energy levels, radiative rates and electron impact excitation rates for transitions in He-like N VI, F VIII and Na X…”
    Get full text
    Journal Article
  15. 15

    Extreme Ultraviolet Emission Lines of ca xv in Solar and Laboratory Spectra by Keenan, F.P., Aggarwal, K.M., Katsiyannis, A.C., Reid, R.H.G.

    Published in Solar physics (01-11-2003)
    “…New R-matrix calculations of electron impact excitation rates in Caxv are used to derive theoretical electron density diagnostic emission line intensity ratios…”
    Get full text
    Journal Article
  16. 16
  17. 17

    Energy levels, radiative rates and electron impact excitation rates for transitions in Li-like N V, F VII, Ne VIII and Na IX by Aggarwal, K M, Keenan, F P, Heeter, R F

    Published in Physica scripta (01-01-2010)
    “…In this paper, we report calculations of energy levels, radiative rates and electron impact excitation rates for transitions in Li-like N V, F VII, Ne VIII and…”
    Get full text
    Journal Article
  18. 18

    Energy levels, radiative rates and electron impact excitation rates for transitions in H-like N VII, O VIII, F IX, Ne X and Na XI by Aggarwal, K M, Keenan, F P, Heeter, R F

    Published in Physica scripta (01-07-2010)
    “…We report calculations of energy levels, radiative rates and electron impact excitation rates for transitions in H-like N VII, O VIII, F IX, Ne X and Na XI…”
    Get full text
    Journal Article
  19. 19
  20. 20

    Extreme ultraviolet transitions of Fe XXI in solar, stellar and laboratory spectra by Keenan, F.P., Aggarwal, K.M., Williams, D.R., Mathioudakis, M., Phillips, K.J.H.

    “…Recent R-matrix calculations of electron impact excitation rates for transitions among the 2s22p2, 2s2p3 and 2p4 levels of Fe xxi are used to derive…”
    Get full text
    Journal Article