Theodosios Chatzistergos

Theodosios Chatzistergos

Max-Planck Institut für Sonnensystemforschung - Göttingen / Germany
Natural Sciences / Physics
AD Scientific Index ID: 4770339
Max Planck Institute for Solar System Research
person_outline Theodosios Chatzistergos's MOST POPULAR ARTICLES
1-) New reconstruction of the sunspot group numbers since 1739 using direct calibration and “backbone” methodsT Chatzistergos, IG Usoskin, GA Kovaltsov, NA Krivova, SK SolankiAstronomy & Astrophysics 602, A69, 2017602017
2-) Recalibration of the sunspot-number: status reportF Clette, L Lefèvre, T Chatzistergos, H Hayakawa, VMS Carrasco, R Arlt, ...Solar Physics 298 (3), 44, 2023512023
3-) Analysis of full disc Ca II K spectroheliograms-II. Towards an accurate assessment of long-term variations in plage areasT Chatzistergos, I Ermolli, NA Krivova, SK SolankiAstronomy & Astrophysics 625, A69, 2019502019
4-) Analysis of full-disc Ca II K spectroheliograms-III. Plage area composite series covering 1892–2019T Chatzistergos, I Ermolli, NA Krivova, SK Solanki, D Banerjee, T Barata, ...Astronomy & Astrophysics 639, A88, 2020412020
5-) Analysis of full disc Ca II K spectroheliograms-I. Photometric calibration and centre-to-limb variation compensationT Chatzistergos, I Ermolli, SK Solanki, NA KrivovaAstronomy & Astrophysics 609, A92, 201840*2018