Astrophysics with Radioactive Isotopes

Diehl, R.

doi:10.1007/978-3-319-91929-4_1

Cited by 7 publications

(10 citation statements)

References 33 publications

(30 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…3 Many details that are beyond the scope of this review can be found in Branch and Wheeler (2017); Diehl et al (2018) books and in Thielemann et al (2018). 4 This amount of energy is often referred as 1 Bethe.…”

Section: Supernova Taxonomymentioning

confidence: 99%

“…Thermonuclear explosions in binary systems containing a white dwarf are delayed up to this point, and thereafter they inject important amounts of iron peak elements to the ISM causing a progressive reduction of [α/Fe] as metallicity increases. See Iliadis (2007); Diehl et al (2018); Thielemann et al (2018); Arnould and Goriely (2020) for recent overviews of nucleosynthesis in different astronomical sites.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Synthesis of radioactive elements in novae and supernovae and their use as a diagnostic tool

Isern,

Hernanz,

Bravo

et al. 2021

Preprint

View full text Add to dashboard Cite

Novae and supernovae play a key role in many fields of Astrophysics and Cosmology. Despite their importance, an accurate description of which objects explode and why and how they explode is still lacking. One of the main characteristics of such explosions is that they are the main suppliers of newly synthesized chemical elements in the Galaxy. Since some of these isotopes are radioactive, it is possible to use the corresponding gamma-rays as a diagnostic tool of the explosion thanks to their independence on the thermal state of the debris. The drawback is the poor sensitivity of detectors in the MeV energy domain. As a consequence, the radioactive lines have only been detected in one core collapse supernova (SN 1987A), one Type Ia supernova (SN 2014J), and one supernova remnant (Cas A). Nevertheless these observations have provided and are providing important information about the explosion mechanisms. Unfortunately, novae are still eluding detection. These results emphasize the necessity to place as soon as possible a new instrument in orbit with enough sensitivity to notice-

show abstract

Section: Supernova Taxonomymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synthesis of radioactive elements in novae and supernovae and their use as a diagnostic tool

Isern,

Hernanz,

Bravo

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

“…Gamma rays have been understood to be an excellent diagnostic of SNeIa for nearly five decades (e.g., [9,13]). In contrast to UVOIR emission, the escaping nuclear radiation is a direct consequence of the nuclear physics that governs the structure and dynamics of these objects and is encoded with critical fundamental evidence that can travel great distances unscathed.…”

Section: What Are Their Progenitor Systems? Why Do They Explode? How ...mentioning

confidence: 99%

Ex Luna, Scientia: The Lunar Occultation eXplorer (LOX)

Miller

2019

View full text Add to dashboard Cite

Exhibit 3. Spectral evolution encodes information about SNeIa progenitor systems. (left to right) Simulated emission spectra at 25, 50, and 100 days post-explosion for two representative SNeIa progenitor models [42, 53]. Line widths are due to Doppler broadening. Horizontal red lines denote preliminary definitions for continuum energy bands that, in addition to individual gamma-ray lines, contain information about elemental origin and transport processes.Flux [arbitrary units] Exhibit 4. Illustrative gamma-ray l i g h t c u r v e s . L i g h t c u r v e s (bolometric band, 0.1-4 MeV) for the two progenitors in Ex. 3.

show abstract

“…Nuclear elements abundance in the universe are promoted by different astrophysics sites. The nuclear reactions re-arranges the basic constituents of atomic nuclei using different allowed configurations, where particle captures and photon nuclei emission are important mechanisms [1]. In addition when neutrinos flux are present they are also captured and emitted by 𝛽−decay of the involved nuclei.…”

Section: Introductionmentioning

confidence: 99%

Neutrino process for nuclei involved in r-process nucleosynthesis: cross section to nuclei with A<30

Santos¹,

Duarte²,

Samana³

2022

Proceedings of XV International Workshop on Hadron Physics — PoS(XVHadronPhysics)

View full text Add to dashboard Cite

In this work we have studied weak processes such 𝛽−decay and neutrino capture that are very important for the r-process. This process takes place far from the 𝛽−stability line, that means in a region where data are very scarce experimentally. In order to study the nucleosynthesis of elements heavier than iron it is necessary to know the cross sections of neutrino-nucleus processes for these nuclei. We have fitted results obtained by Gross Theory of Beta Decay (GTBD) applied to neutrinonucleus cross sections. We used a four degree polynomial dependence of the cross section with the incident neutrino energy in fitting Gross Theory theoretical results. This dependence allows us to systematically calculate the neutrino-nucleus cross sections for a large group of nuclei, such as those needed in the r-process (more than 4000 nuclei). Our fitting and interpolation procedures are shown to be in a good agreement and the GTBD cross sections are successfully reproduced.

show abstract

Astrophysics with Radioactive Isotopes

Cited by 7 publications

References 33 publications

Synthesis of radioactive elements in novae and supernovae and their use as a diagnostic tool

Synthesis of radioactive elements in novae and supernovae and their use as a diagnostic tool

Ex Luna, Scientia: The Lunar Occultation eXplorer (LOX)

Neutrino process for nuclei involved in r-process nucleosynthesis: cross section to nuclei with A<30

Contact Info

Product

Resources

About