Zobrazeno 1 - 10
of 73
pro vyhledávání: '"N. Nahar"'
Autor:
Sultana N. Nahar, A. Antillón, Aaron Covington, A. Morales-Mori, E.M. Hernández, D. Kilcoyne, G. Hinojosa, V. T. Davis, A. M. Juarez, J.F. Thompson
Publikováno v:
International Journal of Mass Spectrometry. 443:61-69
We offer a theoretical and experimental study of the single-photon photoionization of Ne III. The high photon flux and the high-resolution capabilities of the Advanced Light Source at the LBNL were employed to measure absolute photoionization cross s
Publikováno v:
Indian Journal of Physics. 94:565-574
Energies, weighted oscillator strengths (gf), line strengths (S) and radiative rates (A) for allowed and forbidden transitions are presented for 2s2p62S1/2 − 2s22p52P1/2, 2P3/2 and 2s22p52P1/2 − 2s22p52P3/2 transitions in fluorine-like Ca XII (Z
Autor:
Sultana N. Nahar
Publikováno v:
Atoms
Volume 8
Issue 4
Atoms, Vol 8, Iss 68, p 68 (2020)
Volume 8
Issue 4
Atoms, Vol 8, Iss 68, p 68 (2020)
The online atomic database of NORAD-Atomic-Data, where NORAD stands for Nahar OSU Radiative, is part of the data sources of the two international collaborations of the Opacity Project (OP) and the Iron Project (IP). It contains large sets of paramete
Autor:
Sultana N. Nahar
Publikováno v:
Atoms, Vol 9, Iss 73, p 73 (2021)
Atoms
Volume 9
Issue 4
Atoms
Volume 9
Issue 4
Single electron hydrogen or hydrogenic ions have analytical forms to evaluate the atomic parameters for the inverse processes of photoionization and electron-ion recombination (H I + hν↔ H II + e) where H is hydrogen. Studies of these processes ha
Autor:
Sultana N. Nahar
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 469:3225-3231
Autor:
Sultana N. Nahar
Publikováno v:
New Astronomy. 51:69-73
Photoionization cross sections of (Ca XV + hν → Ca XVI + e), with high energy resonant photo-absorption phenomena, of a large number of bound states, 701 in total with n ≤ 10 and l ≤ 9, are reported. They are obtained using the R-matrix method
Autor:
Sultana N. Nahar
Publikováno v:
New Astronomy. 50:19-24
Photoionization cross section (σPI) of P II, (hν + P II → P III + e), from ground and a large number of excited levels are presented. The study includes the resonant structures and the characteristics of the background in photoionization cross se
Autor:
Sultana N. Nahar
Publikováno v:
New Astronomy. 82:101447
This report presents i) various characteristic features in photoionization cross sections (σPI) of Cl II + hν → Cl III + e for many fine structure levels of Cl II, 392 in total with n ≤ 10 and l ≤ 9, ii) comparison of features with those obse
Autor:
Sultana N. Nahar
Publikováno v:
New Astronomy. 73:101277
Characteristic features of the resonances and background cross sections for photoionization (σPI) of oxygen-like iron ion, Fe XIX + hν → Fe XX + e, are demonstrated. The features are introduced by excitations of the core ion to states of n = 2,3,
Autor:
Sultana N. Nahar
Publikováno v:
New Astronomy. 38:16-22
Detailed photoionization of ground and many excited states with autoionizing resonances of neutral Ti are presented. Ti I with 22 electrons forms a large number of bound states, the present work finds a total of 908 bound states with n ⩽ 10 and l