Search Results - "Gilleron, F"

A higher-than-predicted measurement of iron opacity at solar interior temperatures by Bailey, J. E., Nagayama, T., Loisel, G. P., Rochau, G. A., Blancard, C., Colgan, J., Cosse, Ph, Faussurier, G., Fontes, C. J., Gilleron, F., Golovkin, I., Hansen, S. B., Iglesias, C. A., Kilcrease, D. P., MacFarlane, J. J., Mancini, R. C., Nahar, S. N., Orban, C., Pain, J.-C., Pradhan, A. K., Sherrill, M., Wilson, B. G.

“…Laboratory measurements of iron opacity made under conditions similar to those inside the Sun reveal much higher opacity than predicted, helping to resolve…”
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Systematic Study of L-Shell Opacity at Stellar Interior Temperatures by Nagayama, T, Bailey, J E, Loisel, G P, Dunham, G S, Rochau, G A, Blancard, C, Colgan, J, Cossé, Ph, Faussurier, G, Fontes, C J, Gilleron, F, Hansen, S B, Iglesias, C A, Golovkin, I E, Kilcrease, D P, MacFarlane, J J, Mancini, R C, More, R M, Orban, C, Pain, J-C, Sherrill, M E, Wilson, B G

“…The first systematic study of opacity dependence on atomic number at stellar interior temperatures is used to evaluate discrepancies between measured and…”
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DETAILED OPACITY COMPARISON FOR AN IMPROVED STELLAR MODELING OF THE ENVELOPES OF MASSIVE STARS by Turck-Chièze, S., Pennec, M. Le, Ducret, J. E., Colgan, J., Kilcrease, D. P., Fontes, C. J., Magee, N., Gilleron, F., Pain, J. C.

“…ABSTRACT Seismic observations have led to doubts or ambiguities concerning the opacity calculations used in stellar physics. Here, we concentrate on the…”
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Review of the 9th NLTE code comparison workshop by Piron, R., Gilleron, F., Aglitskiy, Y., Chung, H.-K., Fontes, C.J., Hansen, S.B., Marchuk, O., Scott, H.A., Stambulchik, E., Ralchenko, Yu

“…We review the 9th NLTE code comparison workshop, which was held in the Jussieu campus, Paris, from November 30th to December 4th, 2015. This time, the workshop…”
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Comment on "Large Enhancement in High-Energy Photoionization of Fe XVII and Missing Continuum Plasma Opacity" by Blancard, C, Colgan, J, Cossé, Ph, Faussurier, G, Fontes, C J, Gilleron, F, Golovkin, I, Hansen, S B, Iglesias, C A, Kilcrease, D P, MacFarlane, J J, More, R M, Pain, J-C, Sherrill, M, Wilson, B G

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A project based on multi-configuration Dirac–Fock calculations for plasma spectroscopy by Comet, M., Pain, J.-C., Gilleron, F., Piron, R.

“…We present a project dedicated to hot plasma spectroscopy based on a Multi-Configuration Dirac–Fock (MCDF) code, initially developed by J. Bruneau. The code is…”
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Opacity of iron, nickel, and copper plasmas in the x-ray wavelength range: theoretical interpretation of 2p-3d absorption spectra by Blenski, T, Loisel, G, Poirier, M, Thais, F, Arnault, P, Caillaud, T, Fariaut, J, Gilleron, F, Pain, J-C, Porcherot, Q, Reverdin, C, Silvert, V, Villette, B, Bastiani-Ceccotti, S, Turck-Chièze, S, Foelsner, W, de Gaufridy de Dortan, F

“…This paper deals with theoretical studies on the 2p-3d absorption in iron, nickel, and copper plasmas related to LULI2000 (Laboratoire pour l'Utilisation des…”
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Self-consistent modelling of hot plasmas within non-extensive Tsallis’ thermostatistics by Pain, J. C., Teychenné, D., Gilleron, F.

“…A study of the effects of non-extensivity on the modelling of atomic physics in hot dense plasmas is proposed within Tsallis’ statistics. The electronic…”
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Modeling of EUV emission from xenon and tin plasma sources for nanolithography by Poirier, M., Blenski, T., de Gaufridy de Dortan, F., Gilleron, F.

“…Over the last decade there has been a major effort devoted to the development of efficient extreme UV sources designed for nanolithography, operating in the…”
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Testing the reliability of non-LTE spectroscopic models for complex ions by Hansen, Stephanie, Armstrong, G.S.J., Bastiani-Ceccotti, S., Bowen, C., Chung, H.-K., Colgan, J.P., de Dortan, F., Fontes, C.J., Gilleron, F., Marquès, J.-R., Piron, R., Peyrusse, O., Poirier, M., Ralchenko, Yu, Sasaki, A., Stambulchik, E., Thais, F.

“…Collisional-radiative atomic models are widely used to help diagnose experimental plasma conditions through fitting and interpreting measured spectra. Here we…”
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Radiative properties of stellar plasmas and open challenges by Turck-Chièze, S., Loisel, G., Gilles, D., Piau, L., Blancard, C., Blenski, T., Busquet, M., Caillaud, T., Cossé, P., Delahaye, F., Faussurier, G., Fariaut, J., Gilleron, F., Guzik, J. A., Harris, J., Kilcrease, D. P., Magee, N. H., Pain, J. C., Porcherot, Q., Poirier, M., Soullier, G., Zeippen, C. J., Bastiani-Ceccotti, S., Reverdin, C., Silvert, V., Thais, F., Villette, B.

“…The lifetime of solar-like stars, the envelope structure of more massive stars, and stellar acoustic frequencies largely depend on the radiative properties of…”
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Theoretical interpretation for 2p - nd absorption spectra of iron, nickel, and copper in X-ray range measured at the LULI2000 facility by Poirier, M, Arnault, P, Bastiani-Ceccotti, S, Blenski, T, de Dortan, F de Gaufridy, Gilleron, F, Loisel, G, Pain, J-C, Porcherot, Q, Reverdin, C, Silvert, V, Thais, F, Turck-Chieze, S

“…The 2p - nd absorption structures in medium Z elements present a valuable benchmark for atomic models since they exhibit a complex dependence on temperature…”
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Iron and Nickel spectral opacity calculations in conditions relevant for pulsating stellar envelopes and experiments by Gilles, D., Turck-Chièze, S., Busquet, M., Thais, F., Loisel, G., Piau, L., Ducret, J.E., Blenski, T., Blancard, C., Cossé, P., Faussurier, G., Gilleron, F., Pain, J.C., Porcherot, Q., Guzik, J.A., Kilcrease, D.P., Magee, N.H., Harris, J., Bastiani-Ceccotti, S., Delahaye, F., Zeippen, C.J

“…Seismology of stars is strongly developing. To address this question we have formed an international collaboration, OPAC, to perform specific experimental…”
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L-band x-ray absorption of radiatively heated nickel by Chenais-Popovics, C, Fajardo, M, Gilleron, F, Teubner, U, Gauthier, J-C, Bauche-Arnoult, C, Bachelier, A, Bauche, J, Blenski, T, Thais, F, Perrot, F, Benuzzi, A, Turck-Chièze, S, Chièze, J-P, Dorchies, F, Andiel, U, Foelsner, W, Eidmann, K

“…Absorption of L-M and L-N transitions of nickel has been measured using point projection spectroscopy. The x-ray radiation from laser-irradiated gold cavities…”
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Radiative heating of B, Al and Ni thin foils at 15–25 eV temperatures by Chenais-Popovics, C, Gilleron, F, Fajardo, M, Merdji, H, Mißalla, T, Gauthier, J.C, Renaudin, P, Gary, S, Bruneau, J, Perrot, F, Blenski, T, Fölsner, W, Eidmann, K

“…Several thin foils have been heated by X-ray radiation emitted by a small gold cavity irradiated with the LULI facility Nd glass laser. The foils were heated…”
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Absorption of local thermodynamic equilibrium aluminum at different densities by Thais, F., Bastiani, S., Blenski, T., Chenais-Popovics, C., Eidman, K., Fölsner, W., Gauthier, J.-C., Gilleron, F., Poirier, M.

“…Increasing the range of plasma parameters accessible for laboratory absorption coefficients measurements is of interest for astrophysical applications…”
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Absorption measurements of radiatively heated multi-layered Al/Ni foils by Chenais-Popovics, C., Fajardo, M., Thais, F., Gilleron, F., Gauthier, J.C., Eidmann, K., Fölsner, W., Blenski, T., Perrot, F., Bauche-Arnoult, C., Bachelier, A., Bauche, J.

“…Mixtures of light and mid- Z elements have been used to measure the absorption of the mid- Z element Ni, the temperature is inferred from the K-shell…”
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Non-LTE opacity calculations with n − l splitting for radiative hydrodynamic codes by Mirone, A., Gauthier, J.C., Gilleron, F., Chenais-Popovics, C.

“…We present a new method for calculating opacities in a non-LTE plasma, based on modeling of the one-electron atomic potential in the framework of the “average…”
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LTE absorption spectroscopy of an X-ray heated boron plasma by Gilleron, F., Merdji, H., Fajardo, M., Henrot, O., Gauthier, J.C., Chenais-Popovics, C., Fölsner, W., Eidmann, K.

“…Time-resolved K-shell spectroscopy of an X-ray driven boron sample is reported. A small cavity irradiated by two frequency-doubled Nd:glass laser beams is used…”
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First systematic study of L-shell opacity at stellar interior temperatures by Nagayama, Taisuke, Bailey, J. E., Loisel, G. P., Dunham, G. S., Rochau, G. A., Blancard, C., Colgan, James Patrick, Cosse, Ph, Fausurrier, G., Fontes, Christopher John, Gilleron, F., Hansen, S. B., Iglesias, C. A., Golovkin, I. E., Kilcrease, David Parker, MacFarlane, J. J., Mancini, R. C., More, R., Orban, C., Pain, J.-C., Sherrill, Manolo Edgar, Wilson, B. G.

“…The first systematic study of opacity dependence on atomic number at stellar interior temperatures is used to evaluate discrepancies between measured and…”
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