Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Theodosios Chatzistergos"'
Autor:
Dibya Kirti Mishra, Srinjana Routh, Bibhuti Kumar Jha, Theodosios Chatzistergos, Judhajeet Basu, Subhamoy Chatterjee, Dipankar Banerjee, Ilaria Ermolli
Publikováno v:
The Astrophysical Journal, Vol 961, Iss 1, p 40 (2024)
Chromospheric differential rotation is a key component in comprehending the atmospheric coupling between the chromosphere and the photosphere at different phases of the solar cycle. In this study, we therefore utilize the newly calibrated multidecada
Externí odkaz:
https://doaj.org/article/c104716b47c34d38931fa833b10c3458
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 9 (2022)
The Rome Precision Solar Photometric Telescope (Rome/PSPT) is a ground-based telescope engaged in precision solar photometry. It has a 27-year database of full-disk images of the photosphere and chromosphere beginning in 1996 and continuing to 2022.
Externí odkaz:
https://doaj.org/article/be925c1db4734c0ca3ae07fcde589e58
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 9 (2022)
Full-disc observations of the Sun in the Ca ii K line provide one of the longest collections of solar data. First such observations were made in 1892 and since then various sites around the world have carried out regular observations, with Kodaikanal
Externí odkaz:
https://doaj.org/article/fa9d0bcdbc1d47c0895d975845df761b
Autor:
Hisashi Hayakawa, Edward W. Cliver, Frédéric Clette, Yusuke Ebihara, Shin Toriumi, Ilaria Ermolli, Theodosios Chatzistergos, Kentaro Hattori, Delores J. Knipp, Séan P. Blake, Gianna Cauzzi, Kevin Reardon, Philippe-A. Bourdin, Dorothea Just, Mikhail Vokhmyanin, Keitaro Matsumoto, Yoshizumi Miyoshi, José R. Ribeiro, Ana P. Correia, David M. Willis, Matthew N. Wild, Sam M. Silverman
Publikováno v:
The Astrophysical Journal, Vol 959, Iss 1, p 23 (2023)
We review observations of solar activity, geomagnetic variation, and auroral visibility for the extreme geomagnetic storm on 1872 February 4. The extreme storm (referred to here as the Chapman–Silverman storm) apparently originated from a complex a
Externí odkaz:
https://doaj.org/article/4d98aca0caf64b43b4c01c0e7701b264
Knowledge of solar irradiance variability is critical to Earth's climate models and understanding the solar influence on Earth's climate. Direct measurements of the Total Solar Irradiance (TSI) have only been available since 1978 from instruments onb
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f6f6bd4654e45e4eb7e847431d7d161
https://doi.org/10.5194/egusphere-egu23-16293
https://doi.org/10.5194/egusphere-egu23-16293
Autor:
Theodosios Chatzistergos
Publikováno v:
Rendiconti Lincei. Scienze Fisiche e Naturali
The Sun provides most of external energy to Earth’s system and thus has the potential of influencing it. Various studies reported a correlation between the solar cycle length and the northern hemisphere temperatures on Earth. Here, we reassess the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e98c20990c30ec5c5ba1291b9a985f3
https://hdl.handle.net/21.11116/0000-000C-9334-3
https://hdl.handle.net/21.11116/0000-000C-9334-3
Autor:
Theodosios Chatzistergos, Ilaria Ermolli, Natalie A. Krivova, Teresa Barata, Sara Carvalho, Jean-Marie Malherbe
Publikováno v:
Astronomy and Astrophysics
Studies and reconstructions of past solar activity require data on sunspots as well as faculae/plage and network. Such data are also important for understanding the magnetic activity and variability of the Sun and Sun-like stars. The longest availabl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3627dfed33943d21877e5d03cc043af7
http://hdl.handle.net/20.500.12386/34219
http://hdl.handle.net/20.500.12386/34219
Autor:
Sami K. Solanki, Kok Leng Yeo, Natalie A. Krivova, Ilaria Ermolli, Jean-Marie Malherbe, Theodosios Chatzistergos, Sudip Mandal, Greg Kopp
Knowledge of solar irradiance variability is critical to Earth's climate models and understanding the solar influence on Earth's climate. Direct solar irradiance measurements are only available since 1978. Reconstructions of past variability typicall
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::caa6cb1b7e7ddf4be9eaa0d65d4b9af1
http://arxiv.org/abs/2109.05844
http://arxiv.org/abs/2109.05844
Autor:
Eleanna Asvestari, Jens Pomoell, Theodosios Chatzistergos, Emilia Kilpua, Jasmina Magdalenic, Erika Palmerio, Simon Good, Stefaan Poedts, Manuela Temmer
Coronal mass ejections (CMEs) are primary drivers of space weather phenomena. Modelling the evolution of the internal magnetic field configuration of CMEs as they propagate through the interplanetary space is an essential part of space weather foreca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bffade0ca0f388d5879a64b2c8294bb8
https://doi.org/10.5194/egusphere-egu21-3291
https://doi.org/10.5194/egusphere-egu21-3291