Zobrazeno 1 - 10
of 66
pro vyhledávání: '"V. Fivet"'
Autor:
V. Fivet, Hampus Nilsson, Patrick Palmeri, Christian Clear, Hans Lundberg, Pascal Quinet, Henrik Hartman, A. Pehlivan Rhodin, Juliet C. Pickering, Lars Engström, M. T. Belmonte
The lifetimes of 17 even-parity levels (3d5s, 3d4d, 3d6s, and 4p$^2$) in the region 57743-77837 cm$^{-1}$ of singly ionised scandium (\ion{Sc}{ii}) were measured by two-step time-resolved laser induced fluorescence spectroscopy. Oscillator strengths
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::28c994aabac420d60031db5823c2ab04
Autor:
Lars Engström, Pascal Quinet, G. Malcheva, Patrick Palmeri, Henrik Hartman, Hampus Nilsson, Hans Lundberg, Krastan B. Blagoev, V. Fivet
This work reports new experimental radiative lifetimes and calculated oscillator strengths for transitions from 3d8 4d levels of astrophysical interest in singly ionized nickel. Radiative lifetimes of seven high-lying levels of even parity in Ni II (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6242907621d7a6f7f207d137c5142b07
Autor:
Hans Lundberg, Pascal Quinet, V. Fivet, Lars Engström, Patrick Palmeri, Hampus Nilsson, Henrik Hartman
This work reports new experimental radiative lifetimes and calculated oscillator strengths for transitions of astrophysical interest in singly ionized cobalt. More precisely, nineteen radiative lifetimes in Co+ have been measured with the time-resolv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c675ff205d764ce4ca08368eca6b6bd2
http://arxiv.org/abs/1609.02183
http://arxiv.org/abs/1609.02183
Autor:
G. Malcheva, Patrick Palmeri, Pascal Quinet, A. I. H. Persson, Lars Engström, Hans Lundberg, Krastan B. Blagoev, Henrik Hartman, Hampus Nilsson, V. Fivet
This work reports new experimental radiative lifetimes of six 3d2(3F)5s levels in singly ionized titanium, with an energy around 63 000 cm-1 and four 3d2(3F)4p odd parity levels where we confirm previous investigations. Combining the new 5s lifetimes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc4dd2d92f23bcf3e8c1f081909e37d4
http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-16099
http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-16099
Autor:
Henri-Pierre GarnirH. Garnir, V. Fivet, Elmar Träbert, Saturnin Yoca EnzongaS.Y. Enzonga, Pascal Quinet, Emile Biémont, Mathieu Clar
Publikováno v:
Canadian Journal of Physics. 87:1275-1282
Relativistic Hartree–Fock and multiconfigurational Dirac–Fock calculations of atomic structure and transition rates have been carried out in trebly ionized lanthanum (La3+, Z = 57). The calculations have to cope with configuration interaction eff
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d1ffd7033b44cff24a6fe77008906d00
https://doi.org/10.1139/p09-105
https://doi.org/10.1139/p09-105
Autor:
V. Fivet, Lars Engström, Emile Biémont, Martin Asplund, Pascal Quinet, Hans Lundberg, A. J. Sauval, Patrick Palmeri, Hampus Nilsson, Henrik Hartman, Nicolas Grevesse
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 396:2124-2132
The solar photospheric abundance of ruthenium is revised on the basis of a new set of oscillator strengths derived for Ru I transitions with wavelengths in the spectral range 2250–4710 A. The new abundance value (in the usual logarithmic scale wher
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::192d11ebbb01d24249a615e33266b4e2
https://doi.org/10.1111/j.1365-2966.2009.14761.x
https://doi.org/10.1111/j.1365-2966.2009.14761.x
Autor:
Patrick Palmeri, V. Fivet, Emile Biémont, Hampus Nilsson, Hans Lundberg, Pascal Quinet, Lars Engström
Publikováno v:
Astronomy & Astrophysics. 493:711-719
Aims. We report on the theoretical and experimental lifetimes of Ta II, and calculated branching fractions for selected transitions. Methods. The theoretical data are obtained by means of a relativistic Hartree-Fock method with detailed attention to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9099d9efd2f9f0a5761192c40923007
https://doi.org/10.1051/0004-6361:200811035
https://doi.org/10.1051/0004-6361:200811035
Autor:
Hampus Nilsson, Emile Biémont, Hans Lundberg, Lars Engström, Pascal Quinet, V. Fivet, Patrick Palmeri
Publikováno v:
The European Physical Journal D. 49:13-19
New measurements of radiative lifetimes for 9 levels in singly ionized tungsten (Wii) have been performed with the time-resolved laser-induced-fluorescence technique. Transition probabilities have been obtained from a combination of experimental life
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f7d30b9028d48bf287462b6994a684a
https://doi.org/10.1140/epjd/e2008-00131-2
https://doi.org/10.1140/epjd/e2008-00131-2
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 380:1581-1588
Absolute transition probabilities have been measured for lines originating from the 5d 9 6d and 5d 9 7s electronic configurations in the spectrum of singly ionized gold (Au II). The laser-induced breakdown spectroscopy has been applied to free gold a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b75ade98d182d62912263da2d8b15e6d
https://doi.org/10.1111/j.1365-2966.2007.12200.x
https://doi.org/10.1111/j.1365-2966.2007.12200.x
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 380:771-780
The first theoretical transition probabilities are obtained for a set of 46 Pm II transitions of astrophysical interest. These data fill in a gap in astrophysics and will allow to establish, on a firmer basis, the presence of some lines of this radio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::40c433337510a21d94be3221ab1f389e
https://doi.org/10.1111/j.1365-2966.2007.12118.x
https://doi.org/10.1111/j.1365-2966.2007.12118.x