Chatzistergos, T.; Krivova, N. A.; Ermolli, I.; Yeo, K. L.; Mandal, S.; Solanki, S. K.; Kopp, G.; Malherbe, J.-M.: Reconstructing solar irradiance from historical Ca II K observations: I. Method and its validation. Astronomy and Astrophysics 656, A104 (2021)
Johnson, L. J.; Norris, C. M.; Unruh, Y. C.; Solanki, S. K.; Krivova, N.; Witzke, V.; Shapiro, A.: Forward modelling of Kepler-band variability due to faculae and spots. Monthly Notices of the Royal Astronomical Society 504 (4), pp. 4751 - 4767 (2021)
Shapiro, A. I.; Solanki, S. K.; Krivova, N. A.: Predictions of Astrometric Jitter for Sun-like Stars. I. The Model and Its Application to the Sun as Seen from the Ecliptic. The Astrophysical Journal 908 (2), 223 (2021)
Sowmya, K.; Nèmec, N.-E.; Shapiro, A.; Isik, E.; Witzke, V.; Mints, A.; Krivova, N. A.; Solanki, S. K.: Predictions of Astrometric Jitter for Sun-like Stars. II. Dependence on Inclination, Metallicity, and Active-region Nesting. The Astrophysical Journal 919 (2), 94 (2021)
Usoskin, I.G.; Solanki, S. K.; Krivova, N. A.; Hofer, B.; Kovaltsov, G.A.; Wacker, L.; Brehm, N.; Kromer, B.: Solar cyclic activity over the last millennium reconstructed from annual 14C data. Astronomy and Astrophysics 649, A141 (2021)
Yeo, K. L.; Solanki, S. K.; Krivova, N. A.; Jiang, J.: The relationship between bipolar magnetic regions and their sunspots. Astronomy and Astrophysics 654, A28 (2021)
Amazo-Gómez, E. M.; Shapiro, A.; Solanki, S. K.; Krivova, N. A.; Kopp, G.; Reinhold, T.; Oshagh, M.; Reiners, A.: Inflection point in the power spectrum of stellar brightness variations: II. The Sun. Astronomy and Astrophysics 636, A69 (2020)
Chatzistergos, T.; Ermolli, I.; Giorgi, F.; Krivova, N. A.; Puiu, C.C.: Modelling solar irradiance from ground-based photometric observations. Journal of Space Weather and Space Climate 10, 45 (2020)
Chatzistergos, T.; Ermolli, I.; Krivova, N. A.; Solanki, S. K.: Historical solar Ca II K observations at the Kyoto and Sacramento Peak observatories. Journal of Physics: Conference Series 1548 (1), 012007 (2020)
Chatzistergos, T.; Ermolli, I.; Krivova, N. A.; Solanki, S. K.; Banerjee, D.; Barata, T.; Belik, M.; Gafeira, R.; Garcia, A.; Hanaoka, Y.et al.; Hegde, M.; Klimeš, J.; Korokhin, V. V.; Lourenço, A.; Malherbe, J.-M.; Marchenko, G. P.; Peixinho, N.; Sakurai, T.; Tlatov, A. G.: Analysis of full-disc Ca II K spectroheliograms III. Plage area composite series covering 1892–2019. Astronomy and Astrophysics 639, A88 (2020)
Isik, E.; Shapiro, A.; Solanki, S. K.; Krivova, N. A.: Amplification of Brightness Variability by Active-region Nesting in Solar-like Stars. The Astrophysical Journal Letters 901, L12 (2020)
Mandal, S.; Krivova, N. A.; Solanki, S. K.; Sinha, N.; Banerjee, D.: Sunspot area catalog revisited: Daily cross-calibrated areas since 1874. Astronomy and Astrophysics 640, A78 (2020)
A star’s chemical composition strongly influences the ultraviolet radiation it emits into space and thus the conditions for the emergence of life in its neighbourhood.
A single star has provided information about the collision of the Milky Way with the dwarf galaxy Gaia-Enceladus. The event likely took place approximately 11.5 billion years ago.