Hosted by: Borbála Cseh (Konkoly Observatory)

Hosted by: Linda Lombardo (INAF Trieste)

Hosted by: Steffen Turkat (TU Dresden)

AstroNuc 2026 will be held on March 10-13, 2026 at the University of Arizona, Tucson, Arizona, USA.

The workshop will bring together observers, theorists and experimentalists working in nuclear astrophysics. Our goal is to discuss advancements in stellar and explosive nucleosynthesis, including their role in enriching galaxies with heavy elements, leveraging insights from recent time domain astronomy initiatives.
 

5 pm GMT on Friday 6th March 2026 online via Zoom

Hosted by: Aldana Grichener (University of Arizona and Observatory)

Abstract: The actinides, including thorium (Th), are the heaviest observable elements synthesized in the universe, holding clues to the extremes of the astrophysical and nuclear conditions of r-process sites. I present Th abundances based on high-resolution spectroscopy for 47 metal-poor stars, the largest homogeneously analyzed sample to date.

Hosted by: Artemis Tsantiri (University of Regina, Canada)

Hosted by: Aldana Grichener (University of Arizona and Observatory)

Hosted by: Praveer Tiwari (CMI, India)

Hosted by: Khang Pham (TAMU)

Abstract: The reaction 22Ne(𝛼,𝑛)25Mg is one of the main neutron source in stars, providing the neutron flux for the weak component of the s-process in massive stars and partially contributing to the main component in AGB stars. For these reasons, its reaction rate is crucial in nuclear astrophysics.

However, the limited availability of experimental data in the energy range of astrophysical interest still leads to significant uncertainties in the reaction rate and in nucleosynthesis predictions.

Hosted by: Araceli Garcia Flores (IFUNAM)

Abstract: Nuclear clustering is a phenomenon where the structure of the nucleus tends towards clumps of alpha particles rather than a homogenous ball of protons and neutrons. Understanding this feature of the nuclear force is particularly important for astrophysics, for instance in the Hoyle state which is essential to the triple-alpha process.

Note that this seminar will take place at 9am Eastern Time / 3 pm CET and Daylight Savings Time has ended in the US. 

Hosted by: Sota Kimura (University of Tsukuba)

How to make gold and silver? The long-sought-after answer to this question remains one of the most challenging open problems that ties together nuclear physics with astronomy. Heavy elements like gold and silver are produced in the so-called rapid neutron-capture (r)-process. This process only occurs in rare explosive events in the Universe, like supernovae (SNe) and neutron star mergers (NSMs), making it hard for astronomers to gather direct observations of the element creation.

Hosted by: Linda Lombardo (INAF Trieste)

Hosted by: Borbala Cseh (Konkoly Observatory)

Hosted by: Steffen Turkat (TU Dresden, Germany)

Abstract: Stars are the element factories of the universe. Stellar explosions distribute freshly synthesized radionuclides in the interstellar medium and lead to the chemical enrichment of galaxies. These cataclysmic events moreover shape the interstellar medium and form large scale structures in the universe. 

Hosted by: Artemis Tsantiri (University of Regina, Canada)

Nuclear masses play a central role in nuclear astrophysics, significantly impacting the origin of the elements and observables used to constrain ultradense matter. A variety of techniques are available to meet this need, varying in their emphasis on precision and reach from stability. These are complemented by theory tools that identify key masses and extrapolate beyond experimental reach.

The third Nuclear Target Development Summer School (NTDSS2025) will be held at Texas A&M University (TAMU) in College Station, Texas, USA, from the afternoon of Friday, August 15 through lunchtime on Tuesday, August 19. The aim of the school is to excite and educate young researchers about the art and science of target making. Through these schools, the research community will be able to build the future workforce of target makers.

The HELIUM25 workshop aims to discuss the state of the art and future plans related to stellar helium burning. It will bring together the nuclear astrophysics community working on He-burning reactions. Various topics will be discussed, including direct and indirect measurements, the role of underground laboratories, detection methods, and astrophysical implications.