Ultraviolet Photometry and Habitable Zones of over 2700 Planet-hosting Stars
The ongoing discovery of exoplanets has sparked significant interest in finding suitable worlds that could potentially support life. Stellar ultraviolet (UV; 100–3000 Å) radiation may play a crucial role in determining the habitability of their planets. In this paper, we conducted a detailed analysi...
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2025-01-01
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| Online Access: | https://doi.org/10.3847/1538-4365/ad9011 |
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| author | Xue Li Song Wang Henggeng Han Jifeng Liu |
| author_facet | Xue Li Song Wang Henggeng Han Jifeng Liu |
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| description | The ongoing discovery of exoplanets has sparked significant interest in finding suitable worlds that could potentially support life. Stellar ultraviolet (UV; 100–3000 Å) radiation may play a crucial role in determining the habitability of their planets. In this paper, we conducted a detailed analysis of the UV photometry of over 2700 host stars with confirmed planets, using observational data from the Galaxy Evolution Explorer and Swift Ultraviolet/Optical Telescope missions. We performed aperture photometry on single-exposure images and provided photometric catalogs that can be used to explore a wide range of scientific questions, such as stellar UV activity and planet habitability. By calculating the circumstellar habitable zone and UV habitable zone, we found that fewer than 100 exoplanets fall within both of these zones, with the majority being gas giants. We also examined stellar activity based on their far-UV (FUV) and near-UV (NUV) emissions. We found the FUV−NUV color more effectively represents stellar activity compared to the ${R}_{\mathrm{FUV}}^{{\prime} }$ and ${R}_{\mathrm{NUV}}^{{\prime} }$ indices. The Sun’s low FUV emission and moderate NUV emission highlight its uniqueness among (solar-like) stars. |
| format | Article |
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| institution | Kabale University |
| issn | 0067-0049 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
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| series | The Astrophysical Journal Supplement Series |
| spelling | doaj-art-acbce823f925476eb27265ef7aad11962025-01-09T06:48:42ZengIOP PublishingThe Astrophysical Journal Supplement Series0067-00492025-01-0127612910.3847/1538-4365/ad9011Ultraviolet Photometry and Habitable Zones of over 2700 Planet-hosting StarsXue Li0https://orcid.org/0009-0007-4501-4376Song Wang1https://orcid.org/0000-0003-3116-5038Henggeng Han2https://orcid.org/0000-0003-3474-5118Jifeng Liu3Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences , Beijing 100101, People's Republic of China ; songw@bao.ac.cn; School of Astronomy and Space Sciences, University of Chinese Academy of Sciences , Beijing 100049, People's Republic of ChinaKey Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences , Beijing 100101, People's Republic of China ; songw@bao.ac.cn; Institute for Frontiers in Astronomy and Astrophysics, Beijing Normal University , Beijing 102206, People's Republic of ChinaKey Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences , Beijing 100101, People's Republic of China ; songw@bao.ac.cnKey Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences , Beijing 100101, People's Republic of China ; songw@bao.ac.cn; School of Astronomy and Space Sciences, University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China; Institute for Frontiers in Astronomy and Astrophysics, Beijing Normal University , Beijing 102206, People's Republic of China; New Cornerstone Science Laboratory, National Astronomical Observatories , Chinese Academy of Sciences, Beijing 100012, People's Republic of ChinaThe ongoing discovery of exoplanets has sparked significant interest in finding suitable worlds that could potentially support life. Stellar ultraviolet (UV; 100–3000 Å) radiation may play a crucial role in determining the habitability of their planets. In this paper, we conducted a detailed analysis of the UV photometry of over 2700 host stars with confirmed planets, using observational data from the Galaxy Evolution Explorer and Swift Ultraviolet/Optical Telescope missions. We performed aperture photometry on single-exposure images and provided photometric catalogs that can be used to explore a wide range of scientific questions, such as stellar UV activity and planet habitability. By calculating the circumstellar habitable zone and UV habitable zone, we found that fewer than 100 exoplanets fall within both of these zones, with the majority being gas giants. We also examined stellar activity based on their far-UV (FUV) and near-UV (NUV) emissions. We found the FUV−NUV color more effectively represents stellar activity compared to the ${R}_{\mathrm{FUV}}^{{\prime} }$ and ${R}_{\mathrm{NUV}}^{{\prime} }$ indices. The Sun’s low FUV emission and moderate NUV emission highlight its uniqueness among (solar-like) stars.https://doi.org/10.3847/1538-4365/ad9011Habitable zoneStellar activityUltraviolet photometryCatalogs |
| spellingShingle | Xue Li Song Wang Henggeng Han Jifeng Liu Ultraviolet Photometry and Habitable Zones of over 2700 Planet-hosting Stars The Astrophysical Journal Supplement Series Habitable zone Stellar activity Ultraviolet photometry Catalogs |
| title | Ultraviolet Photometry and Habitable Zones of over 2700 Planet-hosting Stars |
| title_full | Ultraviolet Photometry and Habitable Zones of over 2700 Planet-hosting Stars |
| title_fullStr | Ultraviolet Photometry and Habitable Zones of over 2700 Planet-hosting Stars |
| title_full_unstemmed | Ultraviolet Photometry and Habitable Zones of over 2700 Planet-hosting Stars |
| title_short | Ultraviolet Photometry and Habitable Zones of over 2700 Planet-hosting Stars |
| title_sort | ultraviolet photometry and habitable zones of over 2700 planet hosting stars |
| topic | Habitable zone Stellar activity Ultraviolet photometry Catalogs |
| url | https://doi.org/10.3847/1538-4365/ad9011 |
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