Zobrazeno 1 - 10
of 65
pro vyhledávání: '"Mark C Zammit"'
Publikováno v:
The Astrophysical Journal, Vol 963, Iss 1, p 62 (2024)
We present a quantum treatment of atom–electron collisions in magnetic fields, demonstrating the significant importance of including the effect of exchange that arises from two interacting electrons. We find strange behaviors that are not encounter
Externí odkaz:
https://doaj.org/article/ec561382f0ea4a6284a6211046670deb
Publikováno v:
The Astrophysical Journal Supplement Series, Vol 269, Iss 1, p 19 (2023)
Photoionization cross sections and rate coefficients have been calculated for all bound vibrational levels of the 1s σ _g state of ${{\rm{H}}}_{2}^{+}$ , HD ^+ , and ${{\rm{D}}}_{2}^{+}$ . The Born–Oppenheimer approximation is employed in our calc
Externí odkaz:
https://doaj.org/article/627c6d0267104f97a9f0d541104df37c
Publikováno v:
The Astrophysical Journal, Vol 951, Iss 2, p 143 (2023)
Spectral line-shape fitting is an extremely useful tool in determining the gravity of white dwarf stars. This method is so far limited to nonmagnetic white dwarfs largely because the theory of line broadening in high magnetic fields is not as complet
Externí odkaz:
https://doaj.org/article/66a1f715e2b44771b9869d0654a8172f
Autor:
Banaz Omar, Manuel Á. González, Marco A. Gigosos, Tlekkabul S. Ramazanov, Madina C. Jelbuldina, Karlygash N. Dzhumagulova, Mark C. Zammit, Dmitry V. Fursa, Igor Bray
Publikováno v:
Atoms, Vol 2, Iss 2, Pp 277-298 (2014)
Spectral line shapes of neutral helium 3889 Å(23S–33P) transition line are calculated by using several theoretical methods. The electronic contribution to the line broadening is calculated from quantum statistical many-particle theory by using the
Externí odkaz:
https://doaj.org/article/ef0d603e1eba4a4d9ffd01b28602171d
Publikováno v:
Atoms, Vol 7, Iss 3, p 75 (2019)
We present convergent close-coupling (CCC) calculations of electron-impact dissociation of vibrationally-excited molecular hydrogen into neutral fragments. This work follows from our previous results for dissociation of molecular hydrogen in the grou
Externí odkaz:
https://doaj.org/article/3f80e17eeca24b79818e08ee3ca8b7af
Autor:
Liam H. Scarlett, Eric Jong, Starsha Odelia, Mark C. Zammit, Yuri Ralchenko, Barry I. Schneider, Igor Bray, Dmitry V. Fursa
Publikováno v:
Atomic Data and Nuclear Data Tables
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f27094b4a180601a5e711e29c6a58014
https://doi.org/10.1016/j.adt.2023.101573
https://doi.org/10.1016/j.adt.2023.101573
Publikováno v:
Physical Review A
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fe8f62255b4a4f4360be652817028af4
https://hdl.handle.net/21.11116/0000-000C-3237-E21.11116/0000-000C-3235-0
https://hdl.handle.net/21.11116/0000-000C-3237-E21.11116/0000-000C-3235-0
Autor:
Igor Bray, I. Hubeny, Taisuke Nagayama, Don Winget, T. A. Gomez, M. H. Montgomery, Patricia Cho, D. P. Kilcrease, Mark C. Zammit, B. H. Dunlap, Chris Fontes
Publikováno v:
Physical Review Letters. 127
Understanding how atoms interact with hot dense matter is essential for astrophysical and laboratory plasmas. Interactions in high-density plasmas broaden spectral lines, providing a rare window into interactions that govern, for example, radiation t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a61933da1766b5988525ae6491b48d2
https://doi.org/10.1103/physrevlett.127.235001
https://doi.org/10.1103/physrevlett.127.235001
Publikováno v:
Physical Review A. 104
We apply the molecular convergent close-coupling method to the calculation of linear polarization fractions for Fulcher-band fluorescence following electron-impact excitation of the ${\mathrm{H}}_{2}$ $d\phantom{\rule{0.16em}{0ex}}{}^{3}{\mathrm{\ens
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::36a7c23bdec58ce41d2acf2f8b241b83
https://doi.org/10.1103/physreva.104.l040801
https://doi.org/10.1103/physreva.104.l040801
Autor:
Liam H. Scarlett, Daniel K. Boyle, Mark C. Zammit, Yuri Ralchenko, Igor Bray, Dmitry V. Fursa
Publikováno v:
Atomic Data and Nuclear Data Tables. 148:101534
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7b8ae366357d1f9ffe1c0eec1225ef32
https://doi.org/10.1016/j.adt.2022.101534
https://doi.org/10.1016/j.adt.2022.101534