Opendata, web and dolomites


Connecting SOLar and stellar Variabilities

Total Cost €


EC-Contrib. €






Project "SOLVe" data sheet

The following table provides information about the project.


Organization address
city: Munich
postcode: 80539

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Germany [DE]
 Project website
 Total cost 1˙443˙000 €
 EC max contribution 1˙443˙000 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2016-STG
 Funding Scheme ERC-STG
 Starting year 2017
 Duration (year-month-day) from 2017-01-01   to  2021-12-31


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 


 Project objective

The proposed project aims at answering four general questions of high scientific importance: - How typical is the Sun as active star? - What is the solar role in climate change? - What are the limitations for detectability of Earth-type planets in habitable zones? - Can the solar paradigm help us to explain variability of other stars and to better detect and characterize exoplanets? These exciting questions can now be addressed thanks to recent progress in solar and stellar physics. On the observational side, the unprecedented precision of broadband stellar photometry achieved with the CNES CoRoT and the NASA Kepler satellites initiated a new era in studying stellar photometric variabilities. Recent surveys with ground-based automated telescopes have significantly increased the number of stars observed over their activity cycles. On the theoretical side, solar irradiance models have matured to reproduce solar brightness variability in great detail. The enormous progress in magnetohydrodynamic simulations of solar and stellar atmospheres as well as the development of new computationally efficient radiative transfer schemes makes it finally possible to extend physics-based solar irradiance models to other stars, thus opening an entirely new horizon for solar-stellar and solar-terrestrial connection studies.


year authors and title journal last update
List of publications.
2020 A. I. Shapiro, E. M. Amazo-Gómez, N. A. Krivova, S. K. Solanki
Inflection point in the power spectrum of stellar brightness variations
published pages: A32, ISSN: 0004-6361, DOI: 10.1051/0004-6361/201936018
Astronomy & Astrophysics 633 2020-03-05
2020 Amazo-Gómez E. M., Shapiro A. I., Solanki S. K., Krivova N. A., Kopp G., Reinhold T., Oshagh M., Reiners A.
Rotation periods from the inflection point in the power spectrum of stellar brightness variations: II. The Sun
published pages: in press, ISSN: 0004-6361, DOI:
Astronomy and Astrophysics 2020-03-05
2020 V. Witzke, T. Reinhold, A. I. Shapiro, N. A. Krivova, S. K. Solanki
Effect of metallicity on the detectability of rotational periods in solar-like stars
published pages: L9, ISSN: 0004-6361, DOI: 10.1051/0004-6361/201936608
Astronomy & Astrophysics 634 2020-03-05
2020 Shapiro, Anna V.; Shapiro, Alexander I.; Gizon, Laurent; Krivova, Natalie A.; Solanki, Sami K.
Solar-cycle irradiance variations over the last four billion years
published pages: in press, ISSN: 0004-6361, DOI:
Astronomy and Astrophysics 2020-03-05
2019 R. V. Tagirov, A. I. Shapiro, N. A. Krivova, Y. C. Unruh, K. L. Yeo, S. K. Solanki
Readdressing the UV solar variability with SATIRE-S: non-LTE effects
published pages: A178, ISSN: 0004-6361, DOI: 10.1051/0004-6361/201935121
Astronomy & Astrophysics 631 2020-03-05
2020 Nèmec N. -E., Shapiro A. I., Krivova N. A., Solanki S. K., Tagirov R. V., Cameron R. H., Dreizler S.
Power spectra of solar brightness variations at different inclinations
published pages: in press, ISSN: 0004-6361, DOI:
Astronomy and Astrophysics 2020-03-05
2018 V. Witzke, A. I. Shapiro, S. K. Solanki, N. A. Krivova, W. Schmutz
From solar to stellar brightness variations
published pages: A146, ISSN: 0004-6361, DOI: 10.1051/0004-6361/201833936
Astronomy & Astrophysics 619 2019-08-29
2019 M. Cernetic, A. I. Shapiro, V. Witzke, N. A. Krivova, S. K. Solanki, R. V. Tagirov
Opacity distribution functions for stellar spectra synthesis
published pages: A157, ISSN: 0004-6361, DOI: 10.1051/0004-6361/201935723
Astronomy & Astrophysics 627 2019-08-29
2019 Timo Reinhold, Keaton J. Bell, James Kuszlewicz, Saskia Hekker, Alexander I. Shapiro
Transition from spot to faculae domination
published pages: A21, ISSN: 0004-6361, DOI: 10.1051/0004-6361/201833754
Astronomy & Astrophysics 621 2019-08-29
2018 E. Işık, S. K. Solanki, N. A. Krivova, A. I. Shapiro
Forward modelling of brightness variations in Sun-like stars
published pages: A177, ISSN: 0004-6361, DOI: 10.1051/0004-6361/201833393
Astronomy & Astrophysics 620 2019-08-29
2018 T. Egorova, W. Schmutz, E. Rozanov, A. I. Shapiro, I. Usoskin, J. Beer, R. V. Tagirov, T. Peter
Revised historical solar irradiance forcing
published pages: A85, ISSN: 0004-6361, DOI: 10.1051/0004-6361/201731199
Astronomy & Astrophysics 615 2019-06-13
2018 Christoffer Karoff, Travis S. Metcalfe, Ângela R. G. Santos, Benjamin T. Montet, Howard Isaacson, Veronika Witzke, Alexander I. Shapiro, Savita Mathur, Guy R. Davies, Mikkel N. Lund, Rafael A. Garcia, Allan S. Brun, David Salabert, Pedro P. Avelino, Jennifer van Saders, Ricky Egeland, Margarida S. Cunha, Tiago L. Campante, William J. Chaplin, Natalie Krivova, Sami K. Solanki, Maximilian Stritzinger, Mads F. Knudsen
The Influence of Metallicity on Stellar Differential Rotation and Magnetic Activity
published pages: 46, ISSN: 1538-4357, DOI: 10.3847/1538-4357/aaa026
The Astrophysical Journal 852/1 2019-06-13
2017 A. I. Shapiro, S. K. Solanki, N. A. Krivova, R. H. Cameron, K. L. Yeo, W. K. Schmutz
The nature of solar brightness variations
published pages: 612-616, ISSN: 2397-3366, DOI: 10.1038/s41550-017-0217-y
Nature Astronomy 1/9 2019-06-13
2018 T. Dudok de Wit, G. Kopp, A. Shapiro, V. Witzke, M. Kretzschmar
Response of Solar Irradiance to Sunspot-area Variations
published pages: 197, ISSN: 1538-4357, DOI: 10.3847/1538-4357/aa9f19
The Astrophysical Journal 853/2 2019-06-13

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