Search Results - "Siess, L"

THE FORMATION OF CATACLYSMIC VARIABLES: THE INFLUENCE OF NOVA ERUPTIONS by Nelemans, G., Siess, L., Repetto, S., Toonen, S., Phinney, E. S.

“…ABSTRACT The theoretical and observed populations of pre-cataclysmic variables are dominated by systems with low-mass white dwarfs (WDs), while the WD masses…”
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On the numerical treatment and dependence of thermohaline mixing in red giants by Lattanzio, J C, Siess, L, Church, R P, Angelou, G, Stancliffe, R J, Doherty, C L, Stephen, T, Campbell, S W

“…In recent years much interest has been shown in the process of thermohaline mixing in red giants. In low- and intermediate-mass stars this mechanism first…”
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The temperature and chronology of heavy-element synthesis in low-mass stars by Neyskens, P., Van Eck, S., Jorissen, A., Goriely, S., Siess, L., Plez, B.

“…Spectrographically obtained zirconium, niobium and technetium abundances in a sample of low-mass stars of type S are used to determine that, in these stars,…”
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Planet formation in intermediate-separation binary systems by Panić, O, Haworth, T J, Petr-Gotzens, M G, Miley, J, van den Ancker, M, Vioque, M, Siess, L, Parker, R, Clarke, C J, Kamp, I, Kennedy, G, Oudmaijer, R D, Pascucci, I, Richards, A M S, Ratzka, T, Qi, C

“…ABSTRACT We report the first characterization of the individual discs in the intermediate-separation binary systems KK Oph and HD 144668 at millimetre…”
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The accretion of brown dwarfs and planets by giant stars — II. Solar-mass stars on the red giant branch by Siess, Lionel, Livio, Mario

“…This paper extends our previous study of planet/brown dwarf accretion by giant stars to solar-mass stars located on the red giant branch. The model assumes…”
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Super asymptotic giant branch stars. I – Evolution code comparison by Doherty, C. L., Siess, L., Lattanzio, J. C., Gil-Pons, P.

“…We present an extensive set of detailed stellar models in the mass range 7.7–10.5 M⊙ over the metallicity range Z= 10−5–0.02. These models were produced using…”
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Re-estimation of 180Ta nucleosynthesis in light of newly constrained reaction rates by Malatji, K.L., Wiedeking, M., Goriely, S., Brits, C.P., Kheswa, B.V., Bello Garrote, F.L., Bleuel, D.L., Giacoppo, F., Görgen, A., Guttormsen, M., Hadynska-Klek, K., Hagen, T.W., Ingeberg, V.W., Klintefjord, M., Larsen, A.C., Papka, P., Renstrøm, T., Sahin, E., Siem, S., Siess, L., Tveten, G.M., Zeiser, F.

“…Recent measurements of the nuclear level densities and γ-ray strength functions below the neutron thresholds in 180,181,182Ta are used as input in the nuclear…”
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The accretion of brown dwarfs and planets by giant stars — I. Asymptotic giant branch stars by Siess, Lionel, Livio, Mario

“…We study the response of the structure of an asymptotic giant branch (AGB) star to the accretion of a brown dwarf or planet in its interior. In particular, we…”
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A New Stellar Mixing Process Operating below Shell Convection Zones Following Off-center Ignition by Mocák, M, Meakin, Casey A, Müller, E, Siess, L

“…During most stages of stellar evolution the nuclear burning of lighter to heavier elements results in a radial composition profile which is stabilizing against…”
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S-process nucleosynthesis during Hot dredge-ups by Siess, L., Goriely, S.

“…We present new results of the nucleosynthesis of s-elements in hot AGB stars. In the framework of the overshoot model, we show that the s-process…”
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Photoneutron cross sections for neodymium isotopes: Toward a unified understanding of ( γ , n ) and ( n , γ ) reactions in the rare earth region by Nyhus, H.-T., Renstrøm, T., Utsunomiya, H., Goriely, S., Filipescu, D. M., Gheorghe, I., Tesileanu, O., Glodariu, T., Shima, T., Takahisa, K., Miyamoto, S., Lui, Y.-W., Hilaire, S., Péru, S., Martini, M., Siess, L., Koning, A. J.

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S-process nucleosynthesis in primordial AGB stars by Siess, L., Goriely, S.

“…Despite the lack of iron seeds and provided partial mixing of protons takes place below the convective envelope, it is shown that the production of s-process…”
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Proton ingestion in asymptotic giant branch stars as a possible explanation for J-type stars and AB2 grains by Choplin, A, Siess, L, Goriely, S

“…J-type stars are a subclass of carbon stars that are generally Li-rich, not enriched in s-elements, and have low $^{12}$C/$^{13}$C ratios. They were suggested…”
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Structure, Evolution, and Nucleosynthesis of Primordial Stars by Siess, Lionel, Livio, Mario, Lattanzio, John

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Production of Lithium and Heavy Elements in AGB Stars Experiencing PIEs by Choplin, A, Siess, L, Goriely, S, Martinet, S

“…Asymptotic giant branch (AGB) stars can experience proton ingestion events (PIEs), leading to a rich nucleosynthesis. During a PIE, the intermediate neutron…”
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Synthesis of thorium and uranium in asymptotic giant branch stars by Choplin, A, Goriely, S, Siess, L

“…A&A 667, L13 (2022) The intermediate neutron capture process (i-process) operates at neutron densities between those of the slow and rapid neutron-capture…”
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The intermediate neutron capture process. III. The i-process in AGB stars of different masses and metallicities without overshoot by Choplin, A, Siess, L, Goriely, S

“…A&A 667, A155 (2022) Alongside the slow (s) and rapid (r) neutron capture processes, an intermediate neutron capture process (i-process) is thought to exist…”
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Super asymptotic giant branch stars. I - Evolution code comparison by Doherty, C. L., Siess, L., Lattanzio, J. C., Gil-Pons, P.

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The intermediate neutron capture process. V. The i-process in AGB stars with overshoot by Choplin, A, Siess, L, Goriely, S, Martinet, S

“…The intermediate neutron capture process (i-process) can develop during proton ingestion events (PIE), potentially during the early stages of low-mass…”
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The intermediate neutron capture process. I. Development of the i-process in low-metallicity low-mass AGB stars by Choplin, A, Siess, L, Goriely, S

“…A&A 662, C3 (2022) Results from observations report a growing number of metal-poor stars showing an abundance pattern midway between the s- and r-processes…”
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