Historical solar Ca II K observations at the Rome and Catania observatories

Theodosios Chatzistergos; Ilaria Ermolli; Mariachiara Falco; Fabrizio Giorgi; Salvo L. Guglielmino; Natalie A. Krivova; Paolo Romano; Sami K. Solanki

doi:10.1393/ncc/i2019-19005-2

Historical solar Ca II K observations at the Rome and Catania observatories

Solar and Stellar Astrophysics 2019-07-17 v1

Authors: Theodosios Chatzistergos , Ilaria Ermolli , Mariachiara Falco , Fabrizio Giorgi , Salvo L. Guglielmino , Natalie A. Krivova , Paolo Romano , Sami K. Solanki

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Abstract

Here we present the little explored Ca II K archives from the Rome and the Catania observatories and analyse the digitised images from these archives to derive plage areas.

Keywords

solar ca ii k rome observatory catania observatory historical observations plage area

Cite

@article{arxiv.1902.07483,
  title  = {Historical solar Ca II K observations at the Rome and Catania observatories},
  author = {Theodosios Chatzistergos and Ilaria Ermolli and Mariachiara Falco and Fabrizio Giorgi and Salvo L. Guglielmino and Natalie A. Krivova and Paolo Romano and Sami K. Solanki},
  journal= {arXiv preprint arXiv:1902.07483},
  year   = {2019}
}

Comments

5 pages, 3 figures, to be published in "Nuovo Cimento C" as proceeding of the Third Meeting of the Italian Solar and Heliospheric Community

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