The Plasma $β$ in quiet Sun Regions: Multi-Instrument View
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2024
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| author | Rodríguez-Gómez, Jenny M. Kuckein, Christoph Manrique, Sergio J. Gonzalez Saqri, Jonas Veronig, Astrid Gomöry, Peter Podladchikova, Tatiana |
| author_facet | Rodríguez-Gómez, Jenny M. Kuckein, Christoph Manrique, Sergio J. Gonzalez Saqri, Jonas Veronig, Astrid Gomöry, Peter Podladchikova, Tatiana |
| contents | A joint campaign of several space-borne and ground-based observatories, such as the GREGOR solar telescope, the Extreme-ultraviolet Imaging Spectrometer (EIS), and the Interface Region Imaging Spectrograph (Hinode Observing Plan 381, 11-22 October 2019) was conducted to investigate the plasma $β$ in quiet sun regions. In this work, we focus on October 13, 17, and 19, 2019, to obtain the plasma $β$ at different heights through the solar atmosphere based on multi-height observational data. We obtained temperature, density and magnetic field estimates from the GREGOR High-resolution Fast Imager (HiFI), and Infrared Spectrograph (GRIS), IRIS, EIS and complementary data from SDO/AIA. Using observational data and models (e.g., FALC and PFSS), we determined the plasma $β$ in the photosphere, chromosphere, transition region and corona. The obtained plasma $β$ values lie inside the expected ranges through the solar atmosphere. However, at EIS and AIA coronal heights (from $1.03\ R_{\odot}$ to $1.20\ R_{\odot}$) plasma $β$ values appear in the limit defined by Gary (2001); such behavior was previously reported by Rodríguez Gómez et al. (2019). Additionally, we obtained the plasma $β$ in the solar photosphere at different optical depths from $\log\ τ=-1.0$ to $\log\ τ=-2.0$. These values decrease with optical depth. This work provides a complete picture of plasma $β$ in quiet sun regions through the solar atmosphere, which is a pre-requisite of a better understanding of the plasma dynamics at the base of the solar corona. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2402_00204 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | The Plasma $β$ in quiet Sun Regions: Multi-Instrument View Rodríguez-Gómez, Jenny M. Kuckein, Christoph Manrique, Sergio J. Gonzalez Saqri, Jonas Veronig, Astrid Gomöry, Peter Podladchikova, Tatiana Solar and Stellar Astrophysics A joint campaign of several space-borne and ground-based observatories, such as the GREGOR solar telescope, the Extreme-ultraviolet Imaging Spectrometer (EIS), and the Interface Region Imaging Spectrograph (Hinode Observing Plan 381, 11-22 October 2019) was conducted to investigate the plasma $β$ in quiet sun regions. In this work, we focus on October 13, 17, and 19, 2019, to obtain the plasma $β$ at different heights through the solar atmosphere based on multi-height observational data. We obtained temperature, density and magnetic field estimates from the GREGOR High-resolution Fast Imager (HiFI), and Infrared Spectrograph (GRIS), IRIS, EIS and complementary data from SDO/AIA. Using observational data and models (e.g., FALC and PFSS), we determined the plasma $β$ in the photosphere, chromosphere, transition region and corona. The obtained plasma $β$ values lie inside the expected ranges through the solar atmosphere. However, at EIS and AIA coronal heights (from $1.03\ R_{\odot}$ to $1.20\ R_{\odot}$) plasma $β$ values appear in the limit defined by Gary (2001); such behavior was previously reported by Rodríguez Gómez et al. (2019). Additionally, we obtained the plasma $β$ in the solar photosphere at different optical depths from $\log\ τ=-1.0$ to $\log\ τ=-2.0$. These values decrease with optical depth. This work provides a complete picture of plasma $β$ in quiet sun regions through the solar atmosphere, which is a pre-requisite of a better understanding of the plasma dynamics at the base of the solar corona. |
| title | The Plasma $β$ in quiet Sun Regions: Multi-Instrument View |
| topic | Solar and Stellar Astrophysics |
| url | https://arxiv.org/abs/2402.00204 |