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Reconstruction of total solar irradiance variability as simultaneously apparent from Solar Orbiter and Solar Dynamics Observatory

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Reconstruction of total solar irradiance variability as simultaneously apparent from Solar Orbiter and Solar Dynamics Observatory

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dc.contributor.author	Yeo, K.L.
dc.contributor.author	Blanco Rodríguez, Julian
dc.contributor.author	Gasent-Blesa, José Luis
dc.contributor.author	Sanchis Kilders, Esteban
dc.contributor.author	Orozco Suárez, D.
dc.contributor.author	del Toro Iniesta, J.C.
dc.contributor.author	Albelo Jorge, N.
dc.contributor.author	Bellot Rubio, L.R.
dc.contributor.author	Balaguer Jiménez, M.
dc.contributor.author	Alvarez Herrero, A.
dc.contributor.author	Pérez Grande, Isabel
dc.contributor.author	Solanki, S.K.
dc.date.accessioned	2023-11-27T09:23:34Z
dc.date.available	2023-11-27T09:23:34Z
dc.date.issued	2023
dc.identifier.uri	https://hdl.handle.net/10550/91447
dc.description.abstract	Solar irradiance variability has been monitored almost exclusively from the Earth's perspective. We present a method to combine the unprecedented observations of the photospheric magnetic field and continuum intensity from outside the Sun-Earth line, which is being recorded by the Polarimetric and Helioseismic Imager on board the Solar Orbiter mission (SO/PHI), with solar observations recorded from the Earth's perspective to examine the solar irradiance variability from both perspectives simultaneously. Taking SO/PHI magnetograms and continuum intensity images from the cruise phase of the Solar Orbiter mission and concurrent observations from the Helioseismic and Magnetic Imager onboard the Solar Dynamics Observatory (SDO/HMI) as input into the SATIRE-S model, we successfully reconstructed the total solar irradiance variability as apparent from both perspectives. In later stages of the SO mission, the orbital plane will tilt in such a way as to bring the spacecraft away from the ecliptic to heliographic latitudes of up to 33°. The current study sets the template for the reconstruction of solar irradiance variability as seen from outside the ecliptic from data that SO/PHI is expected to collect from such positions. Such a reconstruction will be beneficial to factoring inclination into how the brightness variations of the Sun compare to those of other cool stars, whose rotation axes are randomly inclined.
dc.language.iso	eng
dc.relation.ispartof	Astronomy and Astrophysics, 2023, vol. 679, num. A25, p. 1-9
dc.source	Yeo, K.L. et al. (2023). Reconstruction of total solar irradiance variability as simultaneously apparent from Solar Orbiter and Solar Dynamics Observatory. Astronomy and Astrophysics, 679, A25, 1-9. https://doi.org/10.1051/0004-6361/202345872
dc.subject	astronomia
dc.subject	astrofísica
dc.subject	física
dc.subject	electrònica
dc.subject	sun faculae
dc.subject	magnetic fields
dc.subject	sunspots
dc.subject	sun activity
dc.title	Reconstruction of total solar irradiance variability as simultaneously apparent from Solar Orbiter and Solar Dynamics Observatory
dc.type	journal article
dc.date.updated	2023-11-27T09:23:35Z
dc.identifier.doi	10.1051/0004-6361/202345872
dc.identifier.idgrec	162132
dc.rights.accessRights	open access