ChETEC-INFRA

Silicon Isotopic Composition of Mainstream Presolar SiC Grains Revisited: The Impact of Nuclear Reaction Rate Uncertainties (2024)
Journal Article
Fok, H. K., Pignatari, M., Côté, B., & Trappitsch, R. (2024). Silicon Isotopic Composition of Mainstream Presolar SiC Grains Revisited: The Impact of Nuclear Reaction Rate Uncertainties. Astrophysical journal. Letters, 977(1), Article L24. https://doi.org/10.3847/2041-8213/ad91ab

Presolar grains are stardust particles that condensed in the ejecta or in the outflows of dying stars and can today be extracted from meteorites. They recorded the nucleosynthetic fingerprint of their parent stars and thus serve as valuable probes of... Read More about Silicon Isotopic Composition of Mainstream Presolar SiC Grains Revisited: The Impact of Nuclear Reaction Rate Uncertainties.

Progress on nuclear reaction rates affecting the stellar production of ²⁶Al (2023)
Journal Article
Laird, A. M., Lugaro, M., Kankainen, A., Adsley, P., Bardayan, D. W., Brinkman, H. E., Côté, B., Deibel, C. M., Diehl, R., Hammache, F., den Hartogh, J. W., José, J., Kurtulgil, D., Lederer-Woods, C., Lotay, G., Meynet, G., Palmerini, S., Pignatari, M., Reifarth, R., de Séréville, N., …Mengoni, A. (2023). Progress on nuclear reaction rates affecting the stellar production of 26Al. Journal of Physics G: Nuclear and Particle Physics, 50(3), Article 033002. https://doi.org/10.1088/1361-6471/ac9cf8

The radioisotope 26Al is a key observable for nucleosynthesis in the Galaxy and the environment of the early Solar System. To properly interpret the large variety of astronomical and meteoritic data, it is crucial to understand both the nuclear react... Read More about Progress on nuclear reaction rates affecting the stellar production of ²⁶Al.

Chemical evolution of fluorine in the Milky Way (2022)
Journal Article
Womack, K., Vincenzo, F., Gibson, B., Côté, B., Pignatari, M., Brinkman, H. E., Ventura, P., & Karakas, A. (2023). Chemical evolution of fluorine in the Milky Way. Monthly notices of the Royal Astronomical Society, 518(1), 1543-1556. https://doi.org/10.1093/mnras/stac3180

Fluorine has many different potential sites and channels of production, making narrowing down a dominant site of fluorine production particularly challenging. In this work, we investigate which sources are the dominant contributors to the galactic fl... Read More about Chemical evolution of fluorine in the Milky Way.

Isotopic ratios for C, N, Si, Al, and Ti in C-rich presolar grains from massive stars (2022)
Journal Article
Schofield, J., Pignatari, M., Stancliffe, R. J., & Hoppe, P. (2022). Isotopic ratios for C, N, Si, Al, and Ti in C-rich presolar grains from massive stars. Monthly notices of the Royal Astronomical Society, 517(2), 1803-1820. https://doi.org/10.1093/mnras/stac2498

Certain types of silicon carbide (SiC) grains, e.g. SiC-X grains, and low density (LD) graphites are C-rich presolar grains that are thought to have condensed in the ejecta of core-collapse supernovae (CCSNe). In this work, we compare C, N, Al, Si, a... Read More about Isotopic ratios for C, N, Si, Al, and Ti in C-rich presolar grains from massive stars.

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/ac4965

Isotope 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.

Radioactive nuclei in the early Solar system: analysis of the 15 isotopes produced by core-collapse supernovae (2021)
Journal Article
Lawson, T. V., Pignatari, M., Stancliffe, R. J., Den Hartogh, J., Jones, S., Fryer, C. L., Gibson, B. K., & Lugaro, M. (2022). Radioactive nuclei in the early Solar system: analysis of the 15 isotopes produced by core-collapse supernovae. Monthly notices of the Royal Astronomical Society, 511(1), 886-902. https://doi.org/10.1093/mnras/stab3684

Short-lived radioactive isotopes (SLRs) with half-lives between 0.1 and 100 Myr can be used to probe the origin of the Solar system. In this work, we examine the core-collapse supernovae production of the 15 SLRs produced: 26Al, 36Cl, 41Ca, 53Mn, 60F... Read More about Radioactive nuclei in the early Solar system: analysis of the 15 isotopes produced by core-collapse supernovae.

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., Guarcello, M. G., Helled, R., Ikoma, M., Kama, M., Kimura, T., Kruijssen, J. D., Maldonado, J., Miguel, Y., Molinari, S., Nikolaou, A., Oliva, F., Panić, O., Pignatari, M., Podio, L., …Wolkenberg, P. (in press). Exploring the link between star and planet formation with Ariel. Experimental astronomy, https://doi.org/10.1007/s10686-021-09754-4

The 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.

Enabling planetary science across light-years. Ariel Definition Study Report (2020)
Report
Zuppella, P., Zingales, T., Yung, Y., Zilinskas, M., Wolkenberg, P., Hou Yip, G., Wawer, P., Widemann, T., Waltham, D., Del Vecchio, C., Vasisht, G., Vazan, A., Van der Swaelmen, M., Vardan, A., Carine Vandaele, A., Tsantaki, M., Valencia, D., Tsai, S.-M., Triaud, A., Trompet, L., …Tinetti, G. (2020). Enabling planetary science across light-years. Ariel Definition Study Report

Ariel, the Atmospheric Remote-sensing Infrared Exoplanet Large-survey, was adopted as the fourth medium-class mission in ESA's Cosmic Vision programme to be launched in 2029. During its 4-year mission, Ariel will study what exoplanets are made of, ho... Read More about Enabling planetary science across light-years. Ariel Definition Study Report.