![Distribution of the Galactic P-normal stars with [P/Fe]< 1 on the [Fe/H]−[P/Fe] plane and illustration of the predicted evolutionary path of the “ONe nova” scenario (wide gray line). Observational results for P-normal stars ([P/Fe]< 1) from (i) Roederer et al. (2014, 2016), (ii) Maas et al. (2022), and (iii) Caffau et al. (2016, 2019), M20, Maas et al. (2022), and Nandakumar et al. (2022) are plotted by filled circles, open circles, and crosses, respectively. The gray line just illustrates how [P/Fe] evolves with [Fe/H]: the exact details of the evolutionary paths (e.g., [Fe/H] at the maximum [P/Fe]) from the present chemical evolution model can be different from this line. Characteristic features of the models are explained with short phrases at appropriate places (e.g., “CCSN only” at [Fe/H]< −2.4). -- astro-ph.GA](https://i0.wp.com/astrobiology.com/wp-content/uploads/2024/05/Phosphorus-enrichment.png?resize=1200%2C720&ssl=1)
Recent observations have shown that [P/Fe] in the Galactic stars decreases with increasing [Fe/H] for [Fe/H] > -1 whereas it is almost subsolar for [Fe/H]< -2. These [P/Fe] trends with […]
ONe novae
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A New Theory To Explain The Origin Of Phosphorus
Astronomers have proposed a new theory to explain the origin of phosphorus, one of the elements important for life on Earth. The theory suggests a type of stellar explosion known […]