Publications of T. Chatzistergos

A list of publications authored or co-authored by T. Chatzistergos, derived from the SAO/NASA Astrophysics Data System (ADS). The number in brackets after each title indicates the number of citations that the paper has received.

Orcid ID: 0000-0002-0335-9831

List of publications ordered by citations
Number of papers: 41 (refereed: 36)
No. of citations: 789
First author papers: 21 (refereed: 18)

2025

  1. Assessment of sunspot number cross-calibration approaches [2]
    Chatzistergos, Theodosios, Krivova, Natalie A., Sundermann, Hannah & Usoskin, Ilya G., A&A, 699, A157
  2. Revisiting the SATIRE-S irradiance reconstruction: Heritage of Mt Wilson magnetograms and Ca II K observations [2]
    Chatzistergos, Theodosios, Krivova, Natalie A., Solanki, Sami K. & Leng Yeo, Kok, A&A, 696, A204
  3. Structure and Dynamics of the Sun's Interior Revealed by the Helioseismic and Magnetic Imager [7]
    Kosovichev, Alexander G., Basu, Sarbani, Bekki, Yuto, Buitrago-Casas, Juan Camilo, Chatzistergos, Theodosios, Chen, Ruizhu, Christensen-Dalsgaard, Jørgen, Donea, Alina, Fleck, Bernhard, Fournier, Damien, García, Rafael A., Getling, Alexander V., Gizon, Laurent, Gough, Douglas O., Hanasoge, Shravan, Hanson, Chris S., Hess Webber, Shea A., Hoeksema, J. Todd, Howe, Rachel, Jain, Kiran, Kasapis, Spiridon, Kashyap, Samarth G., Kitiashvili, Irina N., Komm, Rudolf, Korzennik, Sylvain G., Krivova, Natalie A., Kuhn, Jeffrey R., Liang, Zhi-Chao, Lindsey, Charles, Mahajan, Sushant S., Mandal, Krishnendu, Mani, Prasad, Martinez Oliveros, Juan Carlos, Mathur, Savita, Rabello Soares, M. Cristina, Rajaguru, S. Paul, Reiter, Johann, Rhodes, Edward J., Rozelot, Jean-Pierre, Scherrer, Philip H., Solanki, Sami K., Stefan, John T., Toomre, Juri, Tripathy, Sushanta C., Upton, Lisa A. & Zhao, Junwei, Solar Physics, 300, 70
  4. Ca II K Polar Network Index of the Sun: A Proxy for Historical Polar Magnetic Field [4]
    Mishra, Dibya Kirti, Jha, Bibhuti Kumar, Chatzistergos, Theodosios, Ermolli, Ilaria, Banerjee, Dipankar, Upton, Lisa A. & Khan, M. Saleem, ApJ, 982, 78
  5. Solar Variability in the Mg II h and k Lines [1]
    Sowmya, K., Snow, M., Shapiro, A. I., Krivova, N. A., Chatzistergos, T. & Solanki, S. K., ApJ, 980, 173
  6. Sunspot cycles for the first millennium BC reconstructed from radiocarbon [6]
    Usoskin, I., Chatzistergos, T., Solanki, S. K., Krivova, N., Kovaltsov, G., Brehm, N., Christl, M. & Wacker, L., A&A, 698, A182
  7. Detectability of Solar Rotation Period across Various Wavelengths [2]
    Vasilyev, Valeriy, Reinhold, Timo, Shapiro, Alexander I., Chatzistergos, Theodosios, Krivova, Natalie & Solanki, Sami K., ApJ, 980, L32

2024

  1. Rudolf Wolf to Alfred Wolfer: The Transfer of the Reference Observer in the International Sunspot Number Series (1876–1893) [7]
    Bhattacharya, S., Lefèvre, L., Chatzistergos, T., Hayakawa, H. & Jansen, M., Solar Physics, 299, 45
  2. Understanding Solar Activity after the Maunder Minimum: Sunspot Records by Rost and Alischer [7]
    Carrasco, V. M. S., Aparicio, A. J. P., Chatzistergos, T., Jamali Jaghdani, S., Hayakawa, H., Gallego, M. C. & Vaquero, J. M., ApJ, 968, 65
  3. A Discussion of Implausible Total Solar-Irradiance Variations Since 1700 [9]
    Chatzistergos, Theodosios, Solar Physics, 299, 21
  4. Understanding the secular variability of solar irradiance: the potential of Ca II K observations [14]
    Chatzistergos, Theodosios, Krivova, Natalie A. & Ermolli, Ilaria, Journal of Space Weather and Space Climate, 14, 9
  5. Butterfly Diagram and Other Properties of Plage Areas from Kodaikanal Ca II K Photographs Covering 1904 – 2007 [4]
    Jha, Bibhuti Kumar, Chatzistergos, Theodosios, Banerjee, Dipankar, Ermolli, Ilaria, Krivova, Natalie A., Solanki, Sami K. & Priyadarshi, Aditya, Solar Physics, 299, 166
  6. Differential Rotation of the Solar Chromosphere: A Century-long Perspective from Kodaikanal Solar Observatory Ca II K Data [17]
    Mishra, Dibya Kirti, Routh, Srinjana, Jha, Bibhuti Kumar, Chatzistergos, Theodosios, Basu, Judhajeet, Chatterjee, Subhamoy, Banerjee, Dipankar & Ermolli, Ilaria, ApJ, 961, 40

2023

  1. Is there a link between the length of the solar cycle and Earth's temperature? [9]
    Chatzistergos, Theodosios, Rendiconti Lincei. Scienze Fisiche e Naturali, 34, 11
  2. Long-term changes in solar activity and irradiance [29]
    Chatzistergos, Theodosios, Krivova, Natalie A. & Yeo, Kok Leng, Journal of Atmospheric and Solar-Terrestrial Physics, 252, 106150
  3. Analysis of full-disc Hα observations: Carrington maps and filament properties in 1909-2022 [11]
    Chatzistergos, Theodosios, Ermolli, Ilaria, Banerjee, Dipankar, Barata, Teresa, Chouinavas, Ioannis, Falco, Mariachiara, Gafeira, Ricardo, Giorgi, Fabrizio, Hanaoka, Yoichiro, Krivova, Natalie A., Korokhin, Viktor V., Lourenço, Ana, Marchenko, Gennady P., Malherbe, Jean-Marie, Peixinho, Nuno, Romano, Paolo & Sakurai, Takashi, A&A, 680, A15
  4. Recalibration of the Sunspot-Number: Status Report [70]
    Clette, F., Lefèvre, L., Chatzistergos, T., Hayakawa, H., Carrasco, V. M. S., Arlt, R., Cliver, E. W., Dudok de Wit, T., Friedli, T. K., Karachik, N., Kopp, G., Lockwood, M., Mathieu, S., Muñoz-Jaramillo, A., Owens, M., Pesnell, D., Pevtsov, A., Svalgaard, L., Usoskin, I. G., van Driel-Gesztelyi, L. & Vaquero, J. M., Solar Physics, 298, 44
  5. Solar Observations by Angelo Secchi. I. Digitization of Original Documents and Analysis of Group Numbers over the Period of 1853-1878 [11]
    Ermolli, I., Chatzistergos, T., Giorgi, F., Carrasco, V. M. S., Aparicio, A. J. P. & Chinnici, I., ApJS, 269, 53
  6. The Extreme Space Weather Event of 1872 February: Sunspots, Magnetic Disturbance, and Auroral Displays [16]
    Hayakawa, Hisashi, Cliver, Edward W., Clette, Frédéric, Ebihara, Yusuke, Toriumi, Shin, Ermolli, Ilaria, Chatzistergos, Theodosios, Hattori, Kentaro, Knipp, Delores J., Blake, Séan P., Cauzzi, Gianna, Reardon, Kevin, Bourdin, Philippe-A., Just, Dorothea, Vokhmyanin, Mikhail, Matsumoto, Keitaro, Miyoshi, Yoshizumi, Ribeiro, José R., Correia, Ana P., Willis, David M., Wild, Matthew N. & Silverman, Sam M., ApJ, 959, 23
  7. Investigating the Effect of Solar Ambient and Data Characteristics on Ca II K Observations and Line Profile Measurements [7]
    Murabito, M., Ermolli, I., Chatzistergos, T., Jafarzadeh, S., Giorgi, F. & Rouppe van der Voort, L., ApJ, 947, 18

2022

  1. Full-disc Ca ii K observations—A window to past solar magnetism [27]
    Chatzistergos, Theodosios, Krivova, Natalie A. & Ermolli, Ilaria, Frontiers in Astronomy and Space Sciences, 9, 336
  2. Scrutinising the relationship between plage areas and sunspot areas and numbers [22]
    Chatzistergos, Theodosios, Ermolli, Ilaria, Krivova, Natalie A., Barata, Teresa, Carvalho, Sara & Malherbe, Jean-Marie, A&A, 667, A167
  3. Rome Precision Solar Photometric Telescope: precision solar full-disk photometry during solar cycles 23–25 [13]
    Ermolli, Ilaria, Giorgi, Fabrizio & Chatzistergos, Theodosios, Frontiers in Astronomy and Space Sciences, 9, 352

2021

  1. Modelling a multi-spacecraft coronal mass ejection encounter with EUHFORIA [33]
    Asvestari, E., Pomoell, J., Kilpua, E., Good, S., Chatzistergos, T., Temmer, M., Palmerio, E., Poedts, S. & Magdalenic, J., A&A, 652, A27
  2. A note on the sunspot and prominence records made by Angelo Secchi during the period 1871-1875 [14]
    Carrasco, Víctor M. S., Nogales, José M., Vaquero, José M., Chatzistergos, Theodosios & Ermolli, Ilaria, Journal of Space Weather and Space Climate, 11, 51
  3. Reconstructing solar irradiance from historical Ca II K observations. I. Method and its validation [27]
    Chatzistergos, Theodosios, Krivova, Natalie A., Ermolli, Ilaria, Yeo, Kok Leng, Mandal, Sudip, Solanki, Sami K., Kopp, Greg & Malherbe, Jean-Marie, A&A, 656, A104
  4. Modelling Solar Ca II H&K Emission Variations [0]
    Krishnamurthy, Sowmya, Shapiro, Alexander I., Witzke, Veronika, Nèmec, Nina-E., Chatzistergos, Theodosis, Yeo, Kok Leng, Krivova, Natalie A. & Solanki, Sami K., The 20.5th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun (CS20.5), Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun, p. 154
  5. Modeling Stellar Ca II H and K Emission Variations. I. Effect of Inclination on the S-index [21]
    Sowmya, K., Shapiro, A. I., Witzke, V., Nèmec, N.-E., Chatzistergos, T., Yeo, K. L., Krivova, N. A. & Solanki, S. K., ApJ, 914, 21

2020

  1. Historical solar Ca II K observations at the Kyoto and Sacramento Peak observatories [10]
    Chatzistergos, T., Ermolli, I., Krivova, N. A. & Solanki, S. K., Journal of Physics Conference Series, Journal of Physics Conference Series, 1548, p. 012007
  2. Modelling solar irradiance from ground-based photometric observations [23]
    Chatzistergos, Theodosios, Ermolli, Ilaria, Giorgi, Fabrizio, Krivova, Natalie A. & Puiu, Cosmin Constantin, Journal of Space Weather and Space Climate, 10, 45
  3. Analysis of full-disc Ca II K spectroheliograms. III. Plage area composite series covering 1892-2019 [50]
    Chatzistergos, Theodosios, Ermolli, Ilaria, Krivova, Natalie A., Solanki, Sami K., Banerjee, Dipankar, Barata, Teresa, Belik, Marcel, Gafeira, Ricardo, Garcia, Adriana, Hanaoka, Yoichiro, Hegde, Manjunath, Klimeš, Jan, Korokhin, Viktor V., Lourenço, Ana, Malherbe, Jean-Marie, Marchenko, Gennady P., Peixinho, Nuno, Sakurai, Takashi & Tlatov, Andrey G., A&A, 639, A88

2019

  1. Historical solar Ca II K observations at the Rome and Catania observatories [14]
    Chatzistergos, T., Ermolli, I., Falco, M., Giorgi, F., Guglielmino, S. L., Krivova, N. A., Romano, P. & Solanki, S. K., Nuovo Cimento C Geophysics Space Physics C, 42, 5
  2. Delving into the Historical Ca II K Archive from the Kodaikanal Observatory: The Potential of the Most Recent Digitized Series [23]
    Chatzistergos, Theodosios, Ermolli, Ilaria, Solanki, Sami K., Krivova, Natalie A., Banerjee, Dipankar, Jha, Bibhuti K. & Chatterjee, Subhamoy, Solar Physics, 294, 145
  3. Recovering the unsigned photospheric magnetic field from Ca II K observations [40]
    Chatzistergos, Theodosios, Ermolli, Ilaria, Solanki, Sami K., Krivova, Natalie A., Giorgi, Fabrizio & Yeo, Kok Leng, A&A, 626, A114
  4. Analysis of full disc Ca II K spectroheliograms. II. Towards an accurate assessment of long-term variations in plage areas [52]
    Chatzistergos, Theodosios, Ermolli, Ilaria, Krivova, Natalie A. & Solanki, Sami K., A&A, 625, A69

2018

  1. Ca II K spectroheliograms for studies of long-term changes in solar irradiance [14]
    Chatzistergos, Theodosios, Ermolli, Ilaria, Krivova, Natalie A. & Solanki, Sami K., Long-term Datasets for the Understanding of Solar and Stellar Magnetic Cycles (Editors: Banerjee, D., Jiang, J., Kusano, K. & Solanki, S.), IAU Symposium, 340, p. 125
  2. Analysis of full disc Ca II K spectroheliograms. I. Photometric calibration and centre-to-limb variation compensation [39]
    Chatzistergos, Theodosios, Ermolli, Ilaria, Solanki, Sami K. & Krivova, Natalie A., A&A, 609, A92
  3. The potential of Ca II K observations for solar activity and variability studies [13]
    Ermolli, Ilaria, Chatzistergos, Theodosios, Krivova, Natalie A. & Solanki, Sami K., Long-term Datasets for the Understanding of Solar and Stellar Magnetic Cycles (Editors: Banerjee, D., Jiang, J., Kusano, K. & Solanki, S.), IAU Symposium, 340, p. 115

2017

  1. New reconstruction of the sunspot group numbers since 1739 using direct calibration and "backbone" methods [81]
    Chatzistergos, Theodosios, Usoskin, Ilya G., Kovaltsov, Gennady A., Krivova, Natalie A. & Solanki, Sami K., A&A, 602, A69

2016

  1. Exploiting Four Historical Ca II K Spectroheliogram Archives [15]
    Chatzistergos, T., Ermolli, I., Solanki, S. K. & Krivova, N. A., Coimbra Solar Physics Meeting: Ground-based Solar Observations in the Space Instrumentation Era (Editors: Dorotovic, I., Fischer, C. E. & Temmer, M.), Astronomical Society of the Pacific Conference Series, 504, p. 227
  2. Dependence of the Sunspot-Group Size on the Level of Solar Activity and its Influence on the Calibration of Solar Observers [23]
    Usoskin, I. G., Kovaltsov, G. A. & Chatzistergos, T., Solar Physics, 291, 3793

Created on Wed Apr 22 04:28:46 2026.