Zobrazeno 1 - 10
of 259
pro vyhledávání: '"Trippella O."'
Autor:
Jayatissa, H., Rogachev, G. V., Goldberg, V. Z., Koshchiy, E., Christian, G., Hooker, J., Ota, S., Roeder, B. T., Saastamoinen, A., Trippella, O., Upadhyayula, S., Uberseder, E.
Publikováno v:
Phys. Lett. B, 802 (2020) 135267
The $^{22}$Ne($\alpha$,$\gamma$)$^{26}$Mg and $^{22}$Ne($\alpha$,n)$^{25}$Mg reactions play an important role in astrophysics because they have significant influence on the neutron flux during the weak branch of the s-process. We constrain the astrop
Externí odkaz:
http://arxiv.org/abs/2001.08316
Autor:
Vescovi, D., Busso, M., Palmerini, S., Trippella, O., Cristallo, S., Piersanti, L., Chieffi, A., Limongi, M., Hoppe, P., Kratz, K. -L.
Publikováno v:
ApJ 863, 115 (2018)
Recent improvements in stellar models for intermediate-mass and massive stars are recalled, together with their expectations for the synthesis of radioactive nuclei of lifetime $\tau \lesssim 25$ Myr, in order to re-examine the origins of now extinct
Externí odkaz:
http://arxiv.org/abs/1807.01058
Autor:
Cristallo, S., La Cognata, M., Massimi, C., Best, A., Palmerini, S., Straniero, O., Trippella, O., Busso, M., Ciani, G. F., Mingrone, F., Piersanti, L., Vescovi, D.
Low mass Asymptotic Giant Branch stars are among the most important polluters of the interstellar medium. In their interiors, the main component (A>90) of the slow neutron capture process (the s-process) is synthesized, the most important neutron sou
Externí odkaz:
http://arxiv.org/abs/1804.10751
Autor:
Palmerini, S., Trippella, O., Busso, M., Vescovi, D., Petrelli, M., Zucchini, A., Frondini, F.
Publikováno v:
Geochimica et Cosmochimica Acta 2017
In the past years the observational evidence that s-process elements from Sr to Pb are produced by stars ascending the socalled Asymptotic Giant Branch (or AGB) could not be explained by self-consistent models, forcing researchers to extensive parame
Externí odkaz:
http://arxiv.org/abs/1711.03039
Slow neutron captures are responsible for the production of about $50\%$ of elements heavier than iron, mainly, occurring during the asymptotic giant branch phase of low-mass stars ($1$ $\lesssim M$/M$_{\odot}$ $\lesssim$ $3$), where the main neutron
Externí odkaz:
http://arxiv.org/abs/1512.06777
Slow neutron captures at A$\gtrsim$ 85 are mainly guaranteed by the reaction 13C($\alpha$,n)16O in AGB stars, requiring proton injections from the envelope. These were so far assumed to involve a small mass ($\lesssim 10^{-3}$ M$_{\odot}$), but model
Externí odkaz:
http://arxiv.org/abs/1403.6256
Among presolar materials recovered in meteorites, abundant SiC and Al$_{2}$O$_{3}$ grains of AGB origins were found. They showed records of C, N, O, $^{26}$Al and s-element isotopic ratios that proved invaluable in constraining the nucleosynthesis mo
Externí odkaz:
http://arxiv.org/abs/1312.6580
Autor:
La Cognata M., Kiss G. G., Yarmukhamedov R., Tursunmakhatov K. I., Wiedenhöver I., Baby L. T., Cherubini S., Cvetinović A., D’Agata G., Figuera P., Guardo G.L., Gulino M., Hayakawa S., Indelicato I., Lamia L., Lattuada M., Mudò F., Palmerini S., Pizzone R.G., Rapisarda G.G., Romano S., Sergi M. L., Spartà R., Spitaleri C., Trippella O., Tumino A., Anastasiou M., Kuvin S. A., Rijal N., Schmidt B., Igamov S. B., Sakuta S. B., Fülöp Zs., Gyürky Gy., Szücs T., Halász Z., Somorjai E., Hons Z., Mrázek J., Tribble R. E., Mukhamedzhanov A. M.
Publikováno v:
EPJ Web of Conferences, Vol 279, p 11001 (2023)
The p - p-chain reaction 3He(α, γ)7Be can sensitively influence the prediction of the 7Be and 8B neutrino fluxes. Despite its importance, the knowledge of its reaction cross section at energies of the core of the Sun (15 keV 30 keV) is limited and
Externí odkaz:
https://doaj.org/article/35441615cd0c4307a522d4b4a7dbca39
Autor:
Yamaguchi H., Hayakawa S., Ma N.R., Shimizu H., Okawa K., Zhang Q., Yang L., Kahl D., La Cognata M., Lamia L., Abe K., Beliuskina O., Cha S.M., Chae K.Y., Cherubini S., Figuera P., Ge Z., Gulino M., Hu J., Inoue A., Iwasa N., Kim A., Kim D., Kiss G., Kubono S., La Commara M., Lattuada M., Lee E.J., Moon J.Y., Palmerini S., Parascandolo C., Park S.Y., Phong V.H., Pierroutsakou D., Pizzone R.G., Rapisarda G.G., Romano S., Spitaleri C., Tang X.D., Trippella O., Tumino A., Zhang N.T., Lam Y.H., Heger A., Jacobs A.M., Xu S.W., Ma S.B., Ru L.H., Liu E.Q., Liu T., Hamill C.B., Murphy A. St J., Su J., Fang X., Kwag M.S., Duy N.N., Uyen N.K., Kim D.H., Liang J., Psaltis A., Sferrazza M., Johnston Z., Li Y.Y.
Publikováno v:
EPJ Web of Conferences, Vol 275, p 01015 (2023)
Astrophysical reactions involving radioactive isotopes (RI) often play an important role in high-temperature stellar environments. The experimental studies on the reaction rates for those are still limited mainly due to the technical difficulties in
Externí odkaz:
https://doaj.org/article/bddb2deee4b24a159b646a7fe3f55ce2
Autor:
Palmerini, S., Trippella, O., Busso, M., Vescovi, D., Petrelli, M., Zucchini, A., Frondini, F.
Publikováno v:
In Geochimica et Cosmochimica Acta 15 January 2018 221:21-36