Results 71 to 80 of about 767 (211)

Explosive nucleosynthesis

, 2001
Many radioactive nuclei relevant for gamma-ray astrophysics are synthesized during explosive events, such as classical novae and supernovae. A review of recent results of explosive nucleosynthesis in these scenarios is presented, with a special emphasis on the ensuing gamma-ray emission from individual nova and supernova explosions.
openaire   +2 more sources

The Role of Rotation on the Yields of the Two γ-Ray Emitters 26Al and 60Fe Ejected by Massive Stars

The Astrophysical Journal
We show that the observed ^60 Fe/ ^26 Al flux ratio provided by the SPectrometer on INTEGRAL satellite (0.24 ± 0.04) can be reproduced only if rotation is taken into account in the computation of the stellar models.
Agnese Falla, Lorenzo Roberti, Marco Limongi, Alessandro Chieffi   +3 more
doaj   +1 more source

Scissors strength in the quasi-continuum of actinides

EPJ Web of Conferences, 2014
The M1-scissors resonance has been measured for the first time in the quasi-continuum of actinides. The strength and position of the resonances in 231,232,233Th were determined by particle-γ coincidences using deuteron induced reactions on a 232Th target.
Guttormsen M., Bernstein L.A., Bürger A., Görgen A., Gunsing F., Hagen T.W., Larsen A.C., Renstrøm T., Siem S., Wiedeking M., Wilson J.N.   +10 more
doaj   +1 more source

Improving explosive nucleosynthesis models via (n,alpha) measurements

, 2001
In explosive environments, (gamma,alpha) reactions constitute some of the most important links in the nucleosynthesis chains. However. it is very unlikely that the rates for most of these reactions will be determined by direct experiments and these rates
Andrzejewski, J., Koehler, P. E., Rauscher, T., Gledenov, Y.M., Raman, S., Guber, K. H.   +5 more
core   +1 more source

ALMA spectral survey of Supernova 1987A – molecular inventory, chemistry, dynamics and explosive nucleosynthesis [PDF]

, 2017
We report the first molecular line survey of Supernova 1987A in the millimetre wavelength range. In the Atacama Large Millimeter/submillimeter Array (ALMA) 210–300 and 340– 360 GHz spectra, we detected cold (20–170 K) CO, 28SiO, HCO+ and SO, with ...
van Loon, JT, Indebetouw, Indebetouw, Remy, J. Spyromilio, V. Bujarrabal, Kamenetzky, J, Kamenetzky, Julia, Indebetouw, R, Woosley, Stanford, Zanardo, Giovanna, Viti, Serena, Yates, J, G. Zanardo, Wheeler, J. C., I De Looze, M. Baes, Fransson, Claes, J. Kamenetzky, Dwek, E., Ng, Chi-Yung, van Loon, JTh, R. Indebetouw, Fransson, Claes,, Sonneborn, G, De Looze, Ilse, Gomez, Haley L., Staveley-Smith, L, Lundqvist, Peter, Chevalier, R., S. Viti, Roche, Patrick, Matsuura, M., Abellan, F. J., Ng, C-Y, Roche, P., J. Larsson, Baes, M, Meixner, M., Barlow, M. J., J. C. Wheeler, van Loon, J. T., Fransson, C., Meixner, M, Dwek, Eli, J. M. Marcaide, Barlow, MJ, Abellan, FJ, J. Th. van Loon, Larsson, J, R. McCray, Larsson, Josefin,, P. Roche, Cigan, P., C. Fransson, Matsuura, Mikako, Cigan, Phil, De Looze, I, McCray, R, Abellán. FJ, Larsson, J., L. Staveley-Smith, Zanardo, G, Spyromilio, J., Ng, C. -Y., Meixner, Margaret, McCray, R., Matsuura, M, Marcaide, JM, Fransson, C, Roche, P, Stavely-Smith, Lister, H. L. Gomez, M. Meixner, Wheeler, J. Craig, F. J. Abellán, Gomez, HL, E. Dwek, Sonneborn, George, De Looze, I., Yates, J., Cigan, P, Sonneborn, G., Spyromilio, Jason, Ng, C. -Y, Staveley-Smith, L., Bujarrabal, V., Spyromilio, J, Bujarrabal, Valentin, Ng, SCY, van Loon, J. Th., M. Matsuura, Viti, S, P. Lundqvist, McCray, Richard, Marcaide, Juan M., Baes, M., Bujarrabal, V, Lundqvist, P, Yates, Jeremy, Abellán, Francisco J., Viti, S., Woosley, S, R. Chevalier, J. Yates, Indebetouw, R., Larsson, Jonas, Dwek, E, S. Woosley, G. Sonneborn, Chevalier, Roger, Chevalier, R, Van Loon, Jacob T., Barlow, Michael J., Zanardo, G., Wheeler, JC, Woosley, S., C.-Y. Ng, Kamenetzky, J., Gomez, H. L., P. Cigan, Lundqvist, P., Lundqvist, Peter,, M. J. Barlow, Marcaide, J. M., Stavely-Smith, L, Baes, Maarten   +125 more
core   +3 more sources

86th Annual Meeting of the Meteoritical Society (2024)

Meteoritics &Planetary Science, Volume 59, Issue S1, Page i-xlii, August 2024.
wiley   +2 more sources

Supernova Dynamics and Explosive Nucleosynthesis

Journal of Physics: Conference Series, 2012
Nuclear physics plays a crucial role in various aspects of core collapse supernovae. The collapse dynamic is strongly influenced by electron captures. Using modern many-body theory improved capture rates have been derived recently with the important result that the process is dominated by capture on nuclei until neutrino trapping is achieved. Following
openaire   +1 more source

Low-energy Measurement of the 86Kr(α, n)89Sr Reaction Cross Section and Its Impact on Weak R-process Nucleosynthesis

The Astrophysical Journal
The cross section of the ^86 Kr( α , n ) ^89 Sr reaction was measured at low energies using the activation technique via the detection of the β ^− emission from the residual ^89 Sr nuclei.
G. G. Kiss, S. R. Kovács, T. N. Szegedi, P. Mohr, F. Montes, A. Arcones, Á. Tóth, A. Németh, E. Szilágyi, M. Kumar Pal, M. Braun, Z. Halász, Z. Elekes, Gy. Gyürky, T. Szücs   +14 more
doaj   +1 more source

Nuclear Aspects Of Stellar And Explosive Nucleosynthesis

, 2007
The majority of nuclear reactions in astrophysics involve unstable nuclei which are not fully accessible by experiments yet. Therefore, there is high demand for reliable predictions of cross sections and reaction rates by theoretical means.
Stanford E. Woosley, Friedrich-karl Thielemann, Thomas Rauscher Friedrich-Karl, Robert D. Hoffman   +3 more
core  

Role of clusters in nuclear astrophysics with Cluster Nucleosynthesis Diagram (CND)

, 2020
The role of nuclear clustering in stellar reactions is discussed, with Cluster Nucleosynthesis Diagram (CND) proposed before, for nucleosynthesis in stellar evolution and explosive stellar phenomena.
한인식
core   +1 more source