Professor Brad Gibson
Astrophysics at the University of Hull
People Involved
Dr Marco Pignatari
Dr Elke Roediger E.Roediger@hull.ac.uk
Reader in Astrophysics, Director of the E.A. Milne Centre for Astrophysics
Dr David Benoit D.Benoit@hull.ac.uk
Senior Lecturer in Molecular Physics and Astrochemistry
Dr Siri Chongchitnan
Professor Kevin Pimbblet K.Pimbblet@hull.ac.uk
Director of DAIM
Comparison between Core-collapse Supernova Nucleosynthesis and Meteoric Stardust Grains: Investigating Magnesium, Aluminium, and Chromium (2022)
Journal Article
Den Hartogh, J., Petö, M. K., Lawson, T., Sieverding, A., Brinkman, H., Pignatari, M., & Lugaro, M. (2022). Comparison between Core-collapse Supernova Nucleosynthesis and Meteoric Stardust Grains: Investigating Magnesium, Aluminium, and Chromium. The Astrophysical journal, 927(2), Article 220. https://doi.org/10.3847/1538-4357/ac4965Isotope variations of nucleosynthetic origin among solar system solid samples are well documented, yet the origin of these variations is still uncertain. The observed variability of 54Cr among materials formed in different regions of the protoplaneta... Read More about Comparison between Core-collapse Supernova Nucleosynthesis and Meteoric Stardust Grains: Investigating Magnesium, Aluminium, and Chromium.
The NuGrid AGB Evolution and Nucleosynthesis Data Set (2022)
Journal Article
Battino, U., Pignatari, M., Tattersall, A., Denissenkov, P., & Herwig, F. (2022). The NuGrid AGB Evolution and Nucleosynthesis Data Set. Universe, 8(3), Article 170. https://doi.org/10.3390/universe8030170Asymptotic Giant Branch (AGB) stars play a key role in the chemical evolution of galaxies. These stars are the fundamental stellar site for the production of light elements such as C, N and F, and half of the elements heavier than Fe via the slow neu... Read More about The NuGrid AGB Evolution and Nucleosynthesis Data Set.
A Large-scale Approach to Modeling Molecular Biosignatures: The Diatomics (2022)
Journal Article
Cross, T. M., Benoit, D. M., Pignatari, M., & Gibson, B. K. (2022). A Large-scale Approach to Modeling Molecular Biosignatures: The Diatomics. The Astrophysical journal, 925(1), Article 57. https://doi.org/10.3847/1538-4357/ac3976This work presents the first steps to modeling synthetic rovibrational spectra for all molecules of astrophysical interest using a new approach implemented in the Prometheus code. The goal is to create a new comprehensive source of first-principles m... Read More about A Large-scale Approach to Modeling Molecular Biosignatures: The Diatomics.
(Li 6, d) and (Li 6, t) reactions on Ne 22 and implications for s -process nucleosynthesis (2021)
Journal Article
Ota, S., Christian, G., Catford, W. N., Lotay, G., Pignatari, M., Battino, U., …Wilkinson, R. (2021). (Li 6, d) and (Li 6, t) reactions on Ne 22 and implications for s -process nucleosynthesis. Physical Review C, 104(5), Article 055806. https://doi.org/10.1103/PhysRevC.104.055806We studied α cluster states in Mg26 via the Ne22(Li6,dγ)Mg26 reaction in inverse kinematics at an energy of 7 MeV/nucleon. States between Ex = 4-14 MeV in Mg26 were populated and relative α spectroscopic factors were determined. Some of these states... Read More about (Li 6, d) and (Li 6, t) reactions on Ne 22 and implications for s -process nucleosynthesis.
Exploring the link between star and planet formation with Ariel (2021)
Journal Article
Turrini, D., Codella, C., Danielski, C., Fedele, D., Fonte, S., Garufi, A., …Wolkenberg, P. (in press). Exploring the link between star and planet formation with Ariel. Experimental astronomy, https://doi.org/10.1007/s10686-021-09754-4The goal of the Ariel space mission is to observe a large and diversified population of transiting planets around a range of host star types to collect information on their atmospheric composition. The planetary bulk and atmospheric compositions bear... Read More about Exploring the link between star and planet formation with Ariel.
UVES analysis of red giants in the bulge globular cluster NGC 6522 (2021)
Journal Article
Barbuy, B., Cantelli, E., Muniz, L., Souza, S. O., Chiappini, C., Hirschi, R., …Depagne, E. (2021). UVES analysis of red giants in the bulge globular cluster NGC 6522. Astronomy and Astrophysics, 654, Article A29. https://doi.org/10.1051/0004-6361/202140815Context: NGC 6522 is a moderately metal-poor bulge globular cluster ([Fe/H] -1.0), and it is a well-studied representative among a number of moderately metal-poor blue horizontal branch clusters located in the bulge. The NGC 6522 abundance pattern ca... Read More about UVES analysis of red giants in the bulge globular cluster NGC 6522.
The 59Fe (n,γ) 60Fe Cross Section from the Surrogate Ratio Method and Its Effect on the 60Fe Nucleosynthesis (2021)
Journal Article
Yan, S. Q., Li, X. Y., Nishio, K., Lugaro, M., Li, Z. H., Makii, H., …Liu, W. P. (2021). The 59Fe (n,γ) 60Fe Cross Section from the Surrogate Ratio Method and Its Effect on the 60Fe Nucleosynthesis. The Astrophysical journal, 919(2), Article 84. https://doi.org/10.3847/1538-4357/ac12ceThe long-lived 60Fe (with a half-life of 2.62 Myr) is a crucial diagnostic of active nucleosynthesis in the Milky Way galaxy and in supernovae near the solar system. The neutron-capture reaction 59Fe(n,γ)60Fe on 59Fe (half-life = 44.5 days) is the ke... Read More about The 59Fe (n,γ) 60Fe Cross Section from the Surrogate Ratio Method and Its Effect on the 60Fe Nucleosynthesis.
The Gaia-ESO Survey: A new approach to chemically characterising young open clusters (2021)
Journal Article
Baratella, M., D'Orazi, V., Sheminova, V., Spina, L., Carraro, G., Gratton, R., …Zaggia, S. (2021). The Gaia-ESO Survey: A new approach to chemically characterising young open clusters. Astronomy and Astrophysics, 653, Article A67. https://doi.org/10.1051/0004-6361/202141069Context. Young open clusters (ages of less than 200 Myr) have been observed to exhibit several peculiarities in their chemical compositions. These anomalies include a slightly sub-solar iron content, super-solar abundances of some atomic species (e.g... Read More about The Gaia-ESO Survey: A new approach to chemically characterising young open clusters.
New experimental 23Na(α,p)26Mg Reaction Rate for Massive Star and Type-Ia Supernova models (2021)
Journal Article
J. Hubbard, N., Aa. Diget, C., P. Fox, S., O. U. Fynbo, H., M. Howard, A., S. Kirsebom, O., M. Laird, A., Munch, M., Parikh, A., Pignatari, M., & R. Tomlinson, J. (2021). New experimental 23Na(α,p)26Mg Reaction Rate for Massive Star and Type-Ia Supernova models. The Astrophysical journal, 912(1), Article 59. https://doi.org/10.3847/1538-4357/abee91The 23Na(α,p)26Mg reaction has been identified as having a significant impact on the nucleosynthesis of several nuclei between Ne and Ti in type-Ia supernovae, and of 23Na and 26Al in massive stars. The reaction has been subjected to renewed experime... Read More about New experimental 23Na(α,p)26Mg Reaction Rate for Massive Star and Type-Ia Supernova models.
129I and 247Cm in meteorites constrain the last astrophysical source of solar r-process elements (2021)
Journal Article
Côté, B., Eichler, M., Yagüe, A., Vassh, N., Mumpower, M. R., Világos, B., Soós, B., Arcones, A., Sprouse, T. M., Surman, R., Pignatari, M., Pető, M. K., Wehmeyer, B., Rauscher, T., & Lugaro, M. (2021). 129I and 247Cm in meteorites constrain the last astrophysical source of solar r-process elements. Science, 371(6532), 945-948. https://doi.org/10.1126/science.aba1111The composition of the early Solar System can be inferred from meteorites. Many elements heavier than iron were formed by the rapid neutron capture process (r-process), but the astrophysical sources where this occurred remain poorly understood. We de... Read More about 129I and 247Cm in meteorites constrain the last astrophysical source of solar r-process elements.