Search Results - "Lugaro, M"

The baryon density of the Universe from an improved rate of deuterium burning by Mossa, V., Stöckel, K., Cavanna, F., Ferraro, F., Aliotta, M., Barile, F., Bemmerer, D., Best, A., Boeltzig, A., Broggini, C., Bruno, C. G., Caciolli, A., Chillery, T., Ciani, G. F., Corvisiero, P., Csedreki, L., Davinson, T., Depalo, R., Di Leva, A., Elekes, Z., Fiore, E. M., Formicola, A., Fülöp, Zs, Gervino, G., Guglielmetti, A., Gustavino, C., Gyürky, G., Imbriani, G., Junker, M., Kievsky, A., Kochanek, I., Lugaro, M., Marcucci, L. E., Mangano, G., Marigo, P., Masha, E., Menegazzo, R., Pantaleo, F. R., Paticchio, V., Perrino, R., Piatti, D., Pisanti, O., Prati, P., Schiavulli, L., Straniero, O., Szücs, T., Takács, M. P., Trezzi, D., Viviani, M., Zavatarelli, S.

“…Light elements were produced in the first few minutes of the Universe through a sequence of nuclear reactions known as Big Bang nucleosynthesis (BBN) 1 , 2 …”
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Aluminium-26 from Massive Binary Stars. I. Nonrotating Models by Brinkman, H. E., Doherty, C. L., Pols, O. R., Li, E. T., Côté, B., Lugaro, M.

“…Abstract Aluminium-26 is a short-lived radionuclide with a half-life of 0.72 Myr, which is observed today in the Galaxy via γ -ray spectroscopy and is inferred…”
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Heavy elements in barium stars by Roriz, M P, Lugaro, M, Pereira, C B, Sneden, C, Junqueira, S, Karakas, A I, Drake, N A

“…ABSTRACT New elemental abundances for the neutron-capture elements Sr, Nb, Mo, Ru, La, Sm, and Eu are presented for a large sample of 180 barium (Ba) giant…”
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High-resolution spectroscopic analysis of four new chemically peculiar stars by Roriz, M P, Pereira, C B, Junqueira, S, Lugaro, M, Drake, N A, Sneden, C

“…ABSTRACT We present detailed chemical compositions of four stars on the first-ascent red giant branch that are classified as chemically peculiar, but lack…”
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Tungsten in barium stars by Roriz, M P, Lugaro, M, Junqueira, S, Sneden, C, Drake, N A, Pereira, C B

“…ABSTRACT Classical barium stars are red giants that receive from their evolved binary companions material exposed to the slow neutron-capture nucleosynthesis,…”
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Rubidium in Barium stars by Roriz, M P, Lugaro, M, Pereira, C B, Drake, N A, Junqueira, S, Sneden, C

“…ABSTRACT Barium (Ba) stars are chemically peculiar stars that display in their atmospheres signatures of the slow neutron-capture (s-process) mechanism that…”
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26Aluminum from Massive Binary Stars. II. Rotating Single Stars Up to Core Collapse and Their Impact on the Early Solar System by Brinkman, Hannah E., den Hartogh, J. W., Doherty, C. L., Pignatari, M., Lugaro, M.

“…Radioactive nuclei were present in the early solar system (ESS), as inferred from analysis of meteorites. Many are produced in massive stars, either during…”
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Thermonuclear 19F(p, α)16O Reaction Rate Revised and Astrophysical Implications by Zhang, L. Y., López, A. Y., Lugaro, M., He, J. J., Karakas, A. I.

“…We have calculated the thermonuclear 19F(p, α γ )16O reaction rate in a wide temperature region of 0.001–10 GK by re-evaluating the available experimental…”
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C/O ratios in planetary nebulae with dual-dust chemistry from faint optical recombination lines by García-Rojas, J, Delgado-Inglada, G, García-Hernández, D A, Dell'Agli, F, Lugaro, M, Karakas, A I, Rodríguez, M

“…AbstractWe present deep high-resolution (R ∼ 15 000) and high-quality UVES optical spectrophotometry of nine planetary nebulae with dual-dust chemistry. We…”
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The 59Fe (n,γ) 60Fe Cross Section from the Surrogate Ratio Method and Its Effect on the 60Fe Nucleosynthesis by Yan, S. Q., Li, X. Y., Nishio, K., Lugaro, M., Li, Z. H., Makii, H., Pignatari, M., Wang, Y. B., Orlandi, R., Hirose, K., Tsukada, K., Mohr, P., Li, G. S., Wang, J. G., Gao, B. S., Han, Y. L., Guo, B., Li, Y. J., Shen, Y. P., Sato, T. K., Ito, Y., Suzaki, F., Su, J., Yang, Y. Y., Wang, J. S., Ma, J. B., Ma, P., Bai, Z., Xu, S. W., Ren, J., Fan, Q. W., Zeng, S., Han, Z. Y., Nan, W., Nan, W. K., Chen, C., Lian, G., Hu, Q., Duan, F. F., Jin, S. Y., Tang, X. D., Liu, W. P.

“…The long-lived 60Fe (with a half-life of 2.62 Myr) is a crucial diagnostic of active nucleosynthesis in the Milky Way galaxy and in supernovae near the solar…”
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Galactic chemical evolution with the short-lived isotopes 53Mn, 60Fe, 182Hf, and 244Pu by Wehmeyer, B, A. Yagüe López, Côté, B, Pető, M K, Kobayashi, C, Lugaro, M

“…We run a three-dimensional Galactic chemical evolution (GCE) model to follow the propagation of 53Mn from supernovae of type Ia (SNIa), 60Fe from core-collapse…”
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Rb-Rich Asymptotic Giant Branch Stars in the Magellanic Clouds by García-Hernández, D. A, Manchado, A, Lambert, D. L, Plez, B, García-Lario, P, D'Antona, F, Lugaro, M, Karakas, A. I, van Raai, M. A

“…We present high-resolution (R approx 60,000) optical spectra of a carefully selected sample of heavily obscured and presumably massive O-rich asymptotic giant…”
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On the internal pollution mechanisms in the globular cluster NGC 6121 (M4): heavy-element abundances and AGB models by D'Orazi, V., Campbell, S. W., Lugaro, M., Lattanzio, J. C., Pignatari, M., Carretta, E.

“…Globular clusters display significant variations in their light-element content, pointing to the existence of a second stellar generation formed from the…”
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Improved astrophysical rate for the 18O(p,α)15N reaction by underground measurements by Bruno, C.G., Aliotta, M., Descouvemont, P., Best, A., Davinson, T., Bemmerer, D., Boeltzig, A., Broggini, C., Caciolli, A., Cavanna, F., Chillery, T., Ciani, G.F., Corvisiero, P., Depalo, R., Di Leva, A., Elekes, Z., Ferraro, F., Formicola, A., Fülöp, Zs, Gervino, G., Guglielmetti, A., Gustavino, C., Gyürky, Gy, Imbriani, G., Junker, M., Lugaro, M., Marigo, P., Menegazzo, R., Mossa, V., Pantaleo, F.R., Piatti, D., Prati, P., Stöckel, K., Straniero, O., Strieder, F., Szücs, T., Takács, M.P., Trezzi, D.

“…The 18O(p,α)15N reaction affects the synthesis of 15N, 18O and 19F isotopes, whose abundances can be used to probe the nucleosynthesis and mixing processes…”
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Cross section of the reaction 18O(p,γ)19F at astrophysical energies: The 90 keV resonance and the direct capture component by Best, A., Pantaleo, F.R., Boeltzig, A., Imbriani, G., Aliotta, M., Balibrea-Correa, J., Bemmerer, D., Broggini, C., Bruno, C.G., Buompane, R., Caciolli, A., Cavanna, F., Chillery, T., Ciani, G.F., Corvisiero, P., Csedreki, L., Davinson, T., deBoer, R.J., Depalo, R., Di Leva, A., Elekes, Z., Ferraro, F., Fiore, E.M., Formicola, A., Fülöp, Zs, Gervino, G., Guglielmetti, A., Gustavino, C., Gyürky, Gy, Junker, M., Kochanek, I., Lugaro, M., Marigo, P., Menegazzo, R., Mossa, V., Paticchio, V., Perrino, R., Piatti, D., Prati, P., Schiavulli, L., Stöckel, K., Straniero, O., Strieder, F., Szücs, T., Takács, M.P., Trezzi, D., Wiescher, M., Zavatarelli, S.

“…The observation of oxygen isotopes in giant stars sheds light on mixing processes operating in their interiors. Due to the very strong correlation between…”
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Direct measurements of low-energy resonance strengths of the 23Na(p,γ)24Mg reaction for astrophysics by Boeltzig, A., Best, A., Pantaleo, F.R., Imbriani, G., Junker, M., Aliotta, M., Balibrea-Correa, J., Bemmerer, D., Broggini, C., Bruno, C.G., Buompane, R., Caciolli, A., Cavanna, F., Chillery, T., Ciani, G.F., Corvisiero, P., Csedreki, L., Davinson, T., deBoer, R.J., Depalo, R., Di Leva, A., Elekes, Z., Ferraro, F., Fiore, E.M., Formicola, A., Fülöp, Zs, Gervino, G., Guglielmetti, A., Gustavino, C., Gyürky, Gy, Kochanek, I., Lugaro, M., Marigo, P., Menegazzo, R., Mossa, V., Munnik, F., Paticchio, V., Perrino, R., Piatti, D., Prati, P., Schiavulli, L., Stöckel, K., Straniero, O., Strieder, F., Szücs, T., Takács, M.P., Trezzi, D., Wiescher, M., Zavatarelli, S.

“…The NeNa and the MgAl cycles play a fundamental role in the nucleosynthesis of asymptotic giant branch stars undergoing hot bottom burning. The Na23(p,γ)24Mg…”
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The 95Zr(n, γ)96Zr Cross Section from the Surrogate Ratio Method and Its Effect on s-process Nucleosynthesis by Yan, S. Q., Li, Z. H., Wang, Y. B., Nishio, K., Lugaro, M., Karakas, A. I., Makii, H., Mohr, P., Su, J., Li, Y. J., Nishinaka, I., Hirose, K., Han, Y. L., Orlandi, R., Shen, Y. P., Guo, B., Zeng, S., Lian, G., Chen, Y. S., Liu, W. P.

“…The 95Zr(n, γ)96Zr reaction cross section is crucial in the modeling of s-process nucleosynthesis in asymptotic giant branch stars because it controls the…”
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Progress of Underground Nuclear Astrophysics Experiment JUNA in China by Liu, W. P., Li, Z. H., He, J. J., Tang, X. D., Lian, G., Su, J., Shen, Y. P., An, Z., Chao, F. Q., Chang, J. J., Chen, L. H., Chen, H., Chen, X. J., Chen, Y. H., Chen, Z. J., Cui, B. Q., Du, X. C., Fang, X., Fu, C. B., Gan, L., Guo, B., Han, Z. Y., Guo, X. Y., He, G. Z., He, J. R., Heger, A., Hou, S. Q., Huang, H. X., Huang, N., Jia, B. L., Jiang, L. Y., Kubono, S., Li, J. M., Li, M. C., Li, K. A., Li, E. T., Li, T., Li, Y. J., Lugaro, M., Luo, X. B., Ma, H. Y., Ma, S. B., Mei, D. M., Nan, W., Nan, W. K., Qi, N. C., Qian, Y. Z., Qin, J. C., Ren, J., Shang, C. S., Sun, L. T., Sun, W. L., Tan, W. P., Tanihata, I., Wang, S., Wang, P., Wang, Y. B., Wu, Q., Xu, S. W., Yan, S. Q., Yang, L. T., Yang, Y., Yu, X. Q., Yue, Q., Zeng, S., Zhang, L., Zhang, H., Zhang, H. Y., Zhang, L. Y., Zhang, N. T., Zhang, P., Zhang, Q. W., Zhang, T., Zhang, X. P., Zhang, X. Z., Zhao, W., Zhou, J. F., Zhou, Y.

“…Underground Nuclear Astrophysics Experiment in China (JUNA) takes the advantage of the ultra-low background in Jinping underground lab. High current mA level…”
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Isotopic Compositions of Strontium, Zirconium, Molybdenum, and Barium in Single Presolar SiC Grains and Asymptotic Giant Branch Stars by Lugaro, Maria, Davis, Andrew M, Gallino, Roberto, Pellin, Michael J, Straniero, Oscar, Käppeler, Franz

“…The strontium, zirconium, molybdenum, and barium isotopic compositions predicted in the mass-losing envelopes of asymptotic giant branch (AGB) stars of solar…”
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A new approach to monitor 13C-targets degradation in situ for 13C(α,n)16O cross-section measurements at LUNA by Ciani, G. F., Csedreki, L., Balibrea-Correa, J., Best, A., Aliotta, M., Barile, F., Bemmerer, D., Boeltzig, A., Broggini, C., Bruno, C. G., Caciolli, A., Cavanna, F., Chillery, T., Colombetti, P., Corvisiero, P., Davinson, T., Depalo, R., Di Leva, A., Di Paolo, L., Elekes, Z., Ferraro, F., Fiore, E. M., Formicola, A., Fülöp, Zs, Gervino, G., Guglielmetti, A., Gustavino, C., Gyürky, Gy, Imbriani, G., Junker, M., Kochanek, I., Lugaro, M., Marigo, P., Masha, E., Menegazzo, R., Mossa, V., Pantaleo, F. R., Paticchio, V., Perrino, R., Piatti, D., Prati, P., Schiavulli, L., Stöckel, K., Straniero, O., Szücs, T., Takács, M. P., Terrasi, F., Trezzi, D., Zavatarelli, S.

“…Direct measurements of reaction cross-sections at astrophysical energies often require the use of solid targets able to withstand high ion beam currents for…”
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