Insight on AGB Mass-Loss and Dust Production from PNe
The asymptotic giant branch (AGB) phase, experienced by low- and intermediate-mass stars (LIMSs), plays a crucial role in galaxies due to its significant dust production. Planetary nebulae (PNe) offer a novel perspective, providing valuable insights into the dust production mechanisms and the evolut...
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MDPI AG
2024-12-01
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| author | Silvia Tosi |
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| author_sort | Silvia Tosi |
| collection | DOAJ |
| description | The asymptotic giant branch (AGB) phase, experienced by low- and intermediate-mass stars (LIMSs), plays a crucial role in galaxies due to its significant dust production. Planetary nebulae (PNe) offer a novel perspective, providing valuable insights into the dust production mechanisms and the evolutionary history of LIMSs. We selected a sample of nine PNe from the Large Magellanic Cloud (LMC), likely originating from single stars. By modeling their spectral energy distributions (SEDs) with photoionization techniques, we successfully reproduced the observed photometric data, spectra, and chemical abundances. This approach enabled us to constrain key characteristics of the central stars (CSs), dust, and gaseous nebulae, which were then compared with predictions from stellar evolution models. By integrating observational data across ultraviolet (UV) to infrared (IR) wavelengths, we achieved a comprehensive understanding of the structure of the PNe in our sample. The results of the SED analysis are consistent with evolutionary models and previous studies that focus on individual components of the PN, such as dust or the gaseous nebula. Our analysis enabled us to determine the metallicity, the progenitor mass of the CSs, and the amount of dust and gas surrounding the CSs, linking these properties to the previous AGB phase. The PN phase provides critical insights into the physical processes active during earlier evolutionary stages. Additionally, we found that higher progenitor masses are associated with greater amounts of dust in the surrounding nebulae but lower amounts of gaseous material compared to sources with lower progenitor masses. |
| format | Article |
| id | doaj-art-ce657aea95114cbc9bc4fef8aafeb233 |
| institution | DOAJ |
| issn | 2075-4434 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Galaxies |
| spelling | doaj-art-ce657aea95114cbc9bc4fef8aafeb2332025-08-20T02:53:26ZengMDPI AGGalaxies2075-44342024-12-011268510.3390/galaxies12060085Insight on AGB Mass-Loss and Dust Production from PNeSilvia Tosi0Dipartimento di Matematica e Fisica, Università Degli Studi Roma Tre, Via Della Vasca Navale 84, 00100 Roma, ItalyThe asymptotic giant branch (AGB) phase, experienced by low- and intermediate-mass stars (LIMSs), plays a crucial role in galaxies due to its significant dust production. Planetary nebulae (PNe) offer a novel perspective, providing valuable insights into the dust production mechanisms and the evolutionary history of LIMSs. We selected a sample of nine PNe from the Large Magellanic Cloud (LMC), likely originating from single stars. By modeling their spectral energy distributions (SEDs) with photoionization techniques, we successfully reproduced the observed photometric data, spectra, and chemical abundances. This approach enabled us to constrain key characteristics of the central stars (CSs), dust, and gaseous nebulae, which were then compared with predictions from stellar evolution models. By integrating observational data across ultraviolet (UV) to infrared (IR) wavelengths, we achieved a comprehensive understanding of the structure of the PNe in our sample. The results of the SED analysis are consistent with evolutionary models and previous studies that focus on individual components of the PN, such as dust or the gaseous nebula. Our analysis enabled us to determine the metallicity, the progenitor mass of the CSs, and the amount of dust and gas surrounding the CSs, linking these properties to the previous AGB phase. The PN phase provides critical insights into the physical processes active during earlier evolutionary stages. Additionally, we found that higher progenitor masses are associated with greater amounts of dust in the surrounding nebulae but lower amounts of gaseous material compared to sources with lower progenitor masses.https://www.mdpi.com/2075-4434/12/6/85AGBpost-AGB evolutiondust production from AGB starsnucleosynthesis in the interiors of AGB stars |
| spellingShingle | Silvia Tosi Insight on AGB Mass-Loss and Dust Production from PNe Galaxies AGB post-AGB evolution dust production from AGB stars nucleosynthesis in the interiors of AGB stars |
| title | Insight on AGB Mass-Loss and Dust Production from PNe |
| title_full | Insight on AGB Mass-Loss and Dust Production from PNe |
| title_fullStr | Insight on AGB Mass-Loss and Dust Production from PNe |
| title_full_unstemmed | Insight on AGB Mass-Loss and Dust Production from PNe |
| title_short | Insight on AGB Mass-Loss and Dust Production from PNe |
| title_sort | insight on agb mass loss and dust production from pne |
| topic | AGB post-AGB evolution dust production from AGB stars nucleosynthesis in the interiors of AGB stars |
| url | https://www.mdpi.com/2075-4434/12/6/85 |
| work_keys_str_mv | AT silviatosi insightonagbmasslossanddustproductionfrompne |