Solar-cycle and Latitude Variations in the Internetwork Magnetism
The importance of the quiet-Sun magnetism is that it is always there to a greater or lesser extent, being a constant provider of energy, independently of the solar cycle phase. The open questions about the quiet-Sun magnetism include those related to its origin. Most people claim that the local dyna...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2023-01-01
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| Series: | The Astrophysical Journal |
| Subjects: | |
| Online Access: | https://doi.org/10.3847/1538-4357/acb64d |
| _version_ | 1797434889388163072 |
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| author | J. C. Trelles Arjona M. J. Martínez González B. Ruiz Cobo |
| author_facet | J. C. Trelles Arjona M. J. Martínez González B. Ruiz Cobo |
| author_sort | J. C. Trelles Arjona |
| collection | DOAJ |
| description | The importance of the quiet-Sun magnetism is that it is always there to a greater or lesser extent, being a constant provider of energy, independently of the solar cycle phase. The open questions about the quiet-Sun magnetism include those related to its origin. Most people claim that the local dynamo action is the mechanism that causes it. This fact would imply that the quiet-Sun magnetism is nearly the same at any location over the solar surface and at any time. Many works claim that the quiet Sun does not have any variation at all, although a few of them raise doubt on this claim and find mild evidence of a cyclic variation in the the quiet-Sun magnetism. In this work, we detect clear variations in the internetwork magnetism both with latitude and solar cycle. In terms of latitude, we find an increase in the averaged magnetic fields toward the solar poles. We also find long-term variations in the averaged magnetic field at the disk center and solar poles, and both variations are almost anticorrelated. These findings do not support the idea that the local dynamo action is the unique factory of the quiet-Sun magnetism. |
| first_indexed | 2024-03-09T10:39:25Z |
| format | Article |
| id | doaj.art-34ea79dc8b7a47a1a019e3444c246074 |
| institution | Directory Open Access Journal |
| issn | 1538-4357 |
| language | English |
| last_indexed | 2024-03-09T10:39:25Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal |
| spelling | doaj.art-34ea79dc8b7a47a1a019e3444c2460742023-12-01T15:53:13ZengIOP PublishingThe Astrophysical Journal1538-43572023-01-0194419510.3847/1538-4357/acb64dSolar-cycle and Latitude Variations in the Internetwork MagnetismJ. C. Trelles Arjona0https://orcid.org/0000-0001-9857-2573M. J. Martínez González1https://orcid.org/0000-0001-5560-7502B. Ruiz Cobo2https://orcid.org/0000-0001-9550-6749Laboratory for Atmospheric and Space Physics (LASP), University of Colorado , 1234 Innovation Dr, Boulder, CO 80303, USA ; Juan.Trelles@lasp.colorado.eduInstituto de Astrofísica de Canarias (IAC) , Vía Láctea s/n, E-38205 San Cristóbal de La Laguna, Tenerife, Spain ; marian@iac.es, brc@iac.es; Dept. Astrofísica, Universidad de La Laguna , E-38205 San Cristóbal de La Laguna, Tenerife, SpainInstituto de Astrofísica de Canarias (IAC) , Vía Láctea s/n, E-38205 San Cristóbal de La Laguna, Tenerife, Spain ; marian@iac.es, brc@iac.es; Dept. Astrofísica, Universidad de La Laguna , E-38205 San Cristóbal de La Laguna, Tenerife, SpainThe importance of the quiet-Sun magnetism is that it is always there to a greater or lesser extent, being a constant provider of energy, independently of the solar cycle phase. The open questions about the quiet-Sun magnetism include those related to its origin. Most people claim that the local dynamo action is the mechanism that causes it. This fact would imply that the quiet-Sun magnetism is nearly the same at any location over the solar surface and at any time. Many works claim that the quiet Sun does not have any variation at all, although a few of them raise doubt on this claim and find mild evidence of a cyclic variation in the the quiet-Sun magnetism. In this work, we detect clear variations in the internetwork magnetism both with latitude and solar cycle. In terms of latitude, we find an increase in the averaged magnetic fields toward the solar poles. We also find long-term variations in the averaged magnetic field at the disk center and solar poles, and both variations are almost anticorrelated. These findings do not support the idea that the local dynamo action is the unique factory of the quiet-Sun magnetism.https://doi.org/10.3847/1538-4357/acb64dQuiet sunSolar cycleSolar dynamoSolar magnetic fieldsSolar physics |
| spellingShingle | J. C. Trelles Arjona M. J. Martínez González B. Ruiz Cobo Solar-cycle and Latitude Variations in the Internetwork Magnetism The Astrophysical Journal Quiet sun Solar cycle Solar dynamo Solar magnetic fields Solar physics |
| title | Solar-cycle and Latitude Variations in the Internetwork Magnetism |
| title_full | Solar-cycle and Latitude Variations in the Internetwork Magnetism |
| title_fullStr | Solar-cycle and Latitude Variations in the Internetwork Magnetism |
| title_full_unstemmed | Solar-cycle and Latitude Variations in the Internetwork Magnetism |
| title_short | Solar-cycle and Latitude Variations in the Internetwork Magnetism |
| title_sort | solar cycle and latitude variations in the internetwork magnetism |
| topic | Quiet sun Solar cycle Solar dynamo Solar magnetic fields Solar physics |
| url | https://doi.org/10.3847/1538-4357/acb64d |
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