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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Autores principales: Do Nascimento, J.-D., Jr., Vidotto, A.A., Petit, P., Folsom, C., De Mello, G.F.P., Meibom, S., Abrevaya, X.C., Ribas, I., Castro, M., Marsden, S.C., Morin, J., Jeffers, S.V., Guinan, E.
Formato: SER
Materias:
habitability
HD 20630
Kappa 1 Ceti
magnetic field
outflows
solar analog
winds
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_17439213_v12_n_p338_DoNascimento
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_17439213_v12_n_p338_DoNascimento
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spelling todo:paper_17439213_v12_n_p338_DoNascimento2023-10-03T16:31:28Z The solar proxy κ1 Cet and the planetary habitability around the young Sun Do Nascimento, J.-D., Jr. Vidotto, A.A. Petit, P. Folsom, C. De Mello, G.F.P. Meibom, S. Abrevaya, X.C. Ribas, I. Castro, M. Marsden, S.C. Morin, J. Jeffers, S.V. Guinan, E. 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. SER info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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
Do Nascimento, J.-D., Jr.
Vidotto, A.A.
Petit, P.
Folsom, C.
De Mello, G.F.P.
Meibom, S.
Abrevaya, X.C.
Ribas, I.
Castro, M.
Marsden, S.C.
Morin, J.
Jeffers, S.V.
Guinan, E.
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.
format SER
author Do Nascimento, J.-D., Jr.
Vidotto, A.A.
Petit, P.
Folsom, C.
De Mello, G.F.P.
Meibom, S.
Abrevaya, X.C.
Ribas, I.
Castro, M.
Marsden, S.C.
Morin, J.
Jeffers, S.V.
Guinan, E.
author_facet Do Nascimento, J.-D., Jr.
Vidotto, A.A.
Petit, P.
Folsom, C.
De Mello, G.F.P.
Meibom, S.
Abrevaya, X.C.
Ribas, I.
Castro, M.
Marsden, S.C.
Morin, J.
Jeffers, S.V.
Guinan, E.
author_sort Do Nascimento, J.-D., Jr.
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
url http://hdl.handle.net/20.500.12110/paper_17439213_v12_n_p338_DoNascimento
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