The solar proxy κ1 Cet and the planetary habitability around the young Sun
Among the solar proxies, κ1 Cet, stands out as potentially having a mass very close to solar and a young age. We report magnetic field measurements and planetary habitability consequences around this star, a proxy of the young Sun when life arose on Earth. Magnetic strength was determined from spect...
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2016
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_17439213_v12_n_p338_DoNascimento http://hdl.handle.net/20.500.12110/paper_17439213_v12_n_p338_DoNascimento |
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paper:paper_17439213_v12_n_p338_DoNascimento2023-06-08T16:27:56Z The solar proxy κ1 Cet and the planetary habitability around the young Sun habitability HD 20630 Kappa 1 Ceti magnetic field outflows solar analog winds Among the solar proxies, κ1 Cet, stands out as potentially having a mass very close to solar and a young age. We report magnetic field measurements and planetary habitability consequences around this star, a proxy of the young Sun when life arose on Earth. Magnetic strength was determined from spectropolarimetric observations and we reconstruct the large-scale surface magnetic field to derive the magnetic environment, stellar winds, and particle flux permeating the interplanetary medium around κ1 Cet. Our results show a closer magnetosphere and mass-loss rate 50 times larger than the current solar wind mass-loss rate when Life arose on Earth, resulting in a larger interaction via space weather disturbances between the stellar wind and a hypothetical young-Earth analogue, potentially affecting the habitability. Interaction of the wind from the young Sun with the planetary ancient magnetic field may have affected the young Earth and its life conditions. Copyright © 2017 International Astronomical Union. 2016 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_17439213_v12_n_p338_DoNascimento http://hdl.handle.net/20.500.12110/paper_17439213_v12_n_p338_DoNascimento |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
habitability HD 20630 Kappa 1 Ceti magnetic field outflows solar analog winds |
| spellingShingle |
habitability HD 20630 Kappa 1 Ceti magnetic field outflows solar analog winds The solar proxy κ1 Cet and the planetary habitability around the young Sun |
| topic_facet |
habitability HD 20630 Kappa 1 Ceti magnetic field outflows solar analog winds |
| description |
Among the solar proxies, κ1 Cet, stands out as potentially having a mass very close to solar and a young age. We report magnetic field measurements and planetary habitability consequences around this star, a proxy of the young Sun when life arose on Earth. Magnetic strength was determined from spectropolarimetric observations and we reconstruct the large-scale surface magnetic field to derive the magnetic environment, stellar winds, and particle flux permeating the interplanetary medium around κ1 Cet. Our results show a closer magnetosphere and mass-loss rate 50 times larger than the current solar wind mass-loss rate when Life arose on Earth, resulting in a larger interaction via space weather disturbances between the stellar wind and a hypothetical young-Earth analogue, potentially affecting the habitability. Interaction of the wind from the young Sun with the planetary ancient magnetic field may have affected the young Earth and its life conditions. Copyright © 2017 International Astronomical Union. |
| title |
The solar proxy κ1 Cet and the planetary habitability around the young Sun |
| title_short |
The solar proxy κ1 Cet and the planetary habitability around the young Sun |
| title_full |
The solar proxy κ1 Cet and the planetary habitability around the young Sun |
| title_fullStr |
The solar proxy κ1 Cet and the planetary habitability around the young Sun |
| title_full_unstemmed |
The solar proxy κ1 Cet and the planetary habitability around the young Sun |
| title_sort |
solar proxy κ1 cet and the planetary habitability around the young sun |
| publishDate |
2016 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_17439213_v12_n_p338_DoNascimento http://hdl.handle.net/20.500.12110/paper_17439213_v12_n_p338_DoNascimento |
| _version_ |
1768543153681334272 |