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Connecting SOLar and stellar Variabilities

CORDIS provides links to public deliverables and publications of HORIZON projects.

Links to deliverables and publications from FP7 projects, as well as links to some specific result types such as dataset and software, are dynamically retrieved from OpenAIRE .

Publications

Irradiance Variations of the Sun and Sun-Like Stars – Overview of Topical Collection (opens in new window)

Author(s): Greg Kopp, Alexander Shapiro
Published in: Solar Physics, Issue 296/4, 2021, ISSN 0038-0938
Publisher: Kluwer Academic Publishers
DOI: 10.1007/s11207-021-01802-8

Connecting measurements of solar and stellar brightness variations (opens in new window)

Author(s): N.-E. Nèmec, E. Işık, A. I. Shapiro, S. K. Solanki, N. A. Krivova, Y. Unruh
Published in: Astronomy & Astrophysics, Issue 638, 2020, Page(s) A56, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202038054

MPS-ATLAS: A fast all-in-one code for synthesising stellar spectra

Author(s): Witzke V., Shapiro A. I., Cernetic M., Tagirov R. V. Kostogryz N. M., Anusha L. S., Unruh Y. C., Solanki S. K., Kurucz R. L.
Published in: Astronomy and Astrophysics, 2021, ISSN 0004-6361
Publisher: Springer Verlag

Amplification of Brightness Variability by Active-region Nesting in Solar-like Stars (opens in new window)

Author(s): Emre Işık, Alexander I. Shapiro, Sami K. Solanki, Natalie A. Krivova
Published in: The Astrophysical Journal, Issue 901/1, 2020, Page(s) L12, ISSN 0004-637X
Publisher: University of Chicago Press
DOI: 10.3847/2041-8213/abb409

Predictions of Astrometric Jitter for Sun-like Stars. II. Dependence on Inclination, Metallicity, and Active-Region Nesting (opens in new window)

Author(s): K. Sowmya, N.-E. Nemec, A. I. Shapiro, E. Isık, V. Witzke, A. Mints, N. A. Krivova, S. K. Solanki
Published in: The Astrophysical Journal, 2021, ISSN 0004-637X
Publisher: University of Chicago Press
DOI: 10.3847/1538-4357/ac111b

The Dimmest State of the Sun (opens in new window)

Author(s): K. L. Yeo, S. K. Solanki, N. A. Krivova, M. Rempel, L. S. Anusha, A. I. Shapiro, R. V. Tagirov, V. Witzke
Published in: Geophysical Research Letters, Issue 47/19, 2020, ISSN 0094-8276
Publisher: American Geophysical Union
DOI: 10.1029/2020gl090243

Revised historical solar irradiance forcing (opens in new window)

Author(s): T. Egorova, W. Schmutz, E. Rozanov, A. I. Shapiro, I. Usoskin, J. Beer, R. V. Tagirov, T. Peter
Published in: Astronomy & Astrophysics, Issue 615, 2018, Page(s) A85, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/201731199

Response of Solar Irradiance to Sunspot-area Variations (opens in new window)

Author(s): T. Dudok de Wit, G. Kopp, A. Shapiro, V. Witzke, M. Kretzschmar
Published in: The Astrophysical Journal, Issue 853/2, 2018, Page(s) 197, ISSN 1538-4357
Publisher: AAS
DOI: 10.3847/1538-4357/aa9f19

The Influence of Metallicity on Stellar Differential Rotation and Magnetic Activity (opens in new window)

Author(s): 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 Stritzing
Published in: The Astrophysical Journal, Issue 852/1, 2018, Page(s) 46, ISSN 1538-4357
Publisher: AAS
DOI: 10.3847/1538-4357/aaa026

The nature of solar brightness variations (opens in new window)

Author(s): A. I. Shapiro, S. K. Solanki, N. A. Krivova, R. H. Cameron, K. L. Yeo, W. K. Schmutz
Published in: Nature Astronomy, Issue 1/9, 2017, Page(s) 612-616, ISSN 2397-3366
Publisher: Nature Publishing Group
DOI: 10.1038/s41550-017-0217-y

Transition from spot to faculae domination (opens in new window)

Author(s): Timo Reinhold, Keaton J. Bell, James Kuszlewicz, Saskia Hekker, Alexander I. Shapiro
Published in: Astronomy & Astrophysics, Issue 621, 2019, Page(s) A21, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/201833754

Opacity distribution functions for stellar spectra synthesis (opens in new window)

Author(s): M. Cernetic, A. I. Shapiro, V. Witzke, N. A. Krivova, S. K. Solanki, R. V. Tagirov
Published in: Astronomy & Astrophysics, Issue 627, 2019, Page(s) A157, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/201935723

Forward modelling of brightness variations in Sun-like stars (opens in new window)

Author(s): E. Işık, S. K. Solanki, N. A. Krivova, A. I. Shapiro
Published in: Astronomy & Astrophysics, Issue 620, 2018, Page(s) A177, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/201833393

From solar to stellar brightness variations (opens in new window)

Author(s): V. Witzke, A. I. Shapiro, S. K. Solanki, N. A. Krivova, W. Schmutz
Published in: Astronomy & Astrophysics, Issue 619, 2018, Page(s) A146, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/201833936

Rotation periods from the inflection point in the power spectrum of stellar brightness variations: II. The Sun

Author(s): Amazo-Gómez E. M., Shapiro A. I., Solanki S. K., Krivova N. A., Kopp G., Reinhold T., Oshagh M., Reiners A.
Published in: Astronomy and Astrophysics, 2020, Page(s) in press, ISSN 0004-6361
Publisher: Springer Verlag

Power spectra of solar brightness variations at different inclinations

Author(s): Nèmec N. -E., Shapiro A. I., Krivova N. A., Solanki S. K., Tagirov R. V., Cameron R. H., Dreizler S.
Published in: Astronomy and Astrophysics, 2020, Page(s) in press, ISSN 0004-6361
Publisher: Springer Verlag

Effect of metallicity on the detectability of rotational periods in solar-like stars (opens in new window)

Author(s): V. Witzke, T. Reinhold, A. I. Shapiro, N. A. Krivova, S. K. Solanki
Published in: Astronomy & Astrophysics, Issue 634, 2020, Page(s) L9, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/201936608

Inflection point in the power spectrum of stellar brightness variations (opens in new window)

Author(s): A. I. Shapiro, E. M. Amazo-Gómez, N. A. Krivova, S. K. Solanki
Published in: Astronomy & Astrophysics, Issue 633, 2020, Page(s) A32, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/201936018

Readdressing the UV solar variability with SATIRE-S: non-LTE effects (opens in new window)

Author(s): R. V. Tagirov, A. I. Shapiro, N. A. Krivova, Y. C. Unruh, K. L. Yeo, S. K. Solanki
Published in: Astronomy & Astrophysics, Issue 631, 2019, Page(s) A178, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/201935121

Solar-cycle irradiance variations over the last four billion years

Author(s): Shapiro, Anna V.; Shapiro, Alexander I.; Gizon, Laurent; Krivova, Natalie A.; Solanki, Sami K.
Published in: Astronomy and Astrophysics, 2020, Page(s) in press, ISSN 0004-6361
Publisher: Springer Verlag

Power spectrum of turbulent convection in the solar photosphere (opens in new window)

Author(s): L. Yelles Chaouche, R. H. Cameron, S. K. Solanki, T. L. Riethmüller, L. S. Anusha, V. Witzke, A. I. Shapiro, P. Barthol, A. Gandorfer, L. Gizon, J. Hirzberger, M. van Noort, J. Blanco Rodríguez, J. C. Del Toro Iniesta, D. Orozco Suárez, W. Schmidt, V. Martínez Pillet, M. Knölker
Published in: Astronomy & Astrophysics, Issue 644, 2020, Page(s) A44, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202037545

The Sun is less active than other solar-like stars (opens in new window)

Author(s): Timo Reinhold, Alexander I. Shapiro, Sami K. Solanki, Benjamin T. Montet, Natalie A. Krivova, Robert H. Cameron, Eliana M. Amazo-Gómez
Published in: Science, Issue 368/6490, 2020, Page(s) 518-521, ISSN 0036-8075
Publisher: American Association for the Advancement of Science
DOI: 10.1126/science.aay3821

Forward modelling of Kepler -band variability due to faculae and spots (opens in new window)

Author(s): Luke J Johnson, Charlotte M Norris, Yvonne C Unruh, Sami K Solanki, Natalie Krivova, Veronika Witzke, Alexander I Shapiro
Published in: Monthly Notices of the Royal Astronomical Society, Issue 504/4, 2021, Page(s) 4751-4767, ISSN 0035-8711
Publisher: Blackwell Publishing Inc.
DOI: 10.1093/mnras/stab1190

Where Have All the Solar-like Stars Gone? Rotation Period Detectability at Various Inclinations and Metallicities (opens in new window)

Author(s): Timo Reinhold, Alexander I. Shapiro, Veronika Witzke, Nina-E. Nèmec, Emre Işık, Sami K. Solanki
Published in: The Astrophysical Journal, Issue 908/2, 2021, Page(s) L21, ISSN 0004-637X
Publisher: University of Chicago Press
DOI: 10.3847/2041-8213/abde46

Solar-type Stars Observed by LAMOST and Kepler (opens in new window)

Author(s): Jinghua Zhang, Alexander I. Shapiro, Shaolan Bi, Maosheng Xiang, Timo Reinhold, Krishnamurthy Sowmya, Yaguang Li, Tanda Li, Jie Yu, Minghao Du, Xianfei Zhang
Published in: The Astrophysical Journal, Issue 894/1, 2020, Page(s) L11, ISSN 0004-637X
Publisher: University of Chicago Press
DOI: 10.3847/2041-8213/ab8795

Modeling Stellar Ca ii H and K Emission Variations. I. Effect of Inclination on the S-index (opens in new window)

Author(s): K. Sowmya, A. I. Shapiro, V. Witzke, N.-E. Nèmec, T. Chatzistergos, K. L. Yeo, N. A. Krivova, S. K. Solanki
Published in: The Astrophysical Journal, Issue 914/1, 2021, Page(s) 21, ISSN 0004-637X
Publisher: University of Chicago Press
DOI: 10.3847/1538-4357/abf247

Inflection point in the power spectrum of stellar brightness variations. III. Facular versus spot dominance on stars with known rotation periods

Author(s): E. M. Amazo-Gomez, A. I. Shapiro, S. K. Solanki, G. Kopp, M. Oshagh, T. Reinhold, A. Reiners
Published in: Astronomy & Astrophysics,, 2020, ISSN 0004-6361
Publisher: Springer Verlag

Radiative Transfer with Opacity Distribution Functions: Application to Narrowband Filters (opens in new window)

Author(s): L. S. Anusha, A. I. Shapiro, V. Witzke, M. Cernetic, S. K. Solanki, L. Gizon
Published in: The Astrophysical Journal Supplement Series, Issue 255/1, 2021, Page(s) 3, ISSN 0067-0049
Publisher: University of Chicago Press
DOI: 10.3847/1538-4365/abfb72

Predictions of Astrometric Jitter for Sun-like Stars. I. The Model and Its Application to the Sun as Seen from the Ecliptic (opens in new window)

Author(s): Alexander I. Shapiro, Sami K. Solanki, Natalie A. Krivova
Published in: The Astrophysical Journal, Issue 908/2, 2021, Page(s) 223, ISSN 0004-637X
Publisher: University of Chicago Press
DOI: 10.3847/1538-4357/abd630

The Sun's Atmosphere (opens in new window)

Author(s): Alexander I. Shapiro, Hardi Peter, Sami K. Solanki
Published in: The Sun as a Guide to Stellar Physics, 2019, Page(s) 59-85, ISBN 9780-128143346
Publisher: Elsevier
DOI: 10.1016/b978-0-12-814334-6.00003-0

Final Report for SAG 21: The Effect of Stellar Contamination on Space-based Transmission Spectroscopy

Author(s): Rachham, B.,..., Shapiro, A., ...
Published in: 2022
Publisher: NASA

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