works on

From the 1 of 10 linked papers with an AI index.

activity
20242026
collaborators

10 papers

astro-ph.SR2026

Re-evaluating solar irradiance reconstructions: No evidence for large secular trends

Theodosios Chatzistergos, Natalie A. Krivova, Mathew J. Owens +1

The authors reassess solar irradiance reconstructions that previously suggested large secular increases and find that, after correcting the linking of cosmogenic isotope and neutro…

astro-ph.SR2026

Quantifying the effect of passband on observations in the Ca II K line

Ajay Kumar Yadav, Theodosios Chatzistergos, Natalie Krivova +33

Full-disk observations of the Sun in the Ca II K line have been carried out since the late 19th century at various observatories worldwide. These long-term records of solar activit…

astro-ph.SR2026

Solar Irradiance Reconstruction over the Telescopic Era Using a Revised Photospheric Magnetic Field Model

D. Temaj, N. A. Krivova, T. Chatzistergos +2

The Sun is the primary source of energy for Earth and one of the main external drivers of its climate. Solar irradiance -- the radiative power emitted by the Sun and received at 1-…

astro-ph.SR2025

Structure and Dynamics of the Sun's Interior Revealed by Helioseismic and Magnetic Imager

Alexander Kosovichev, Sarbani Basu, Yuto Bekki +43

High-resolution helioseismology observations with the Helioseismic and Magnetic Imager (HMI) onboard Solar Dynamics Observatory (SDO) provide a unique three-dimensional view of the…

astro-ph.SR2025

Revisiting the SATIRE-S irradiance reconstruction: Heritage of Mt Wilson magnetograms and Ca II K observations

Theodosios Chatzistergos, Natalie A. Krivova, Sami K. Solanki +1

Accurate information on long-term variations in solar irradiance, important for understanding the solar influence on Earth's climate, cannot be derived from direct irradiance measu…

astro-ph.SR2025

Detectability of Solar Rotation Period Across Various Wavelengths

Valeriy Vasilyev, Timo Reinhold, Alexander I. Shapiro +3

The light curves of old G-dwarfs obtained in the visible and near-infrared wavelength ranges are highly irregular. This significantly complicates the detectability of the rotation…