|
1.
| Conf. Poster Reconstruction of the Sunspot Number Series: Gathering Data
/ Kalugodu, Chandrashekhar ; Lefèvre, Laure ; et al
Poster presented at AGU Fall Meeting 2025, New Orleans, USA on 2025-12-16
[POSTER-2026-0061]
Files:  PDF; |
|
2.
| Conf. Poster Refining the Sunspot Number Series to SN V3: Challenges and Benefits for the Space Climate Community
/ Kalugodu, Chandrashekhar ; Lefèvre, Laure ; et al
Poster presented at European Space Weather Week 2025, Umea (Sweden) on 2025-10-31
[POSTER-2026-0060]
Files: PDF; |
|
3.
| Conf. Poster The FARSUN project : storing and distributing sunspot data to the scientific community
/ Lefèvre, Laure ; Mampaey, Benjamin ; et al
Poster presented at AGU Fall Meeting, New Orleans, USA on 2025-12-16
[POSTER-2026-0059]
Files: PDF; |
|
4.
| Science Article (Ref.) The Solar and Geomagnetic Storms in 2024 May: A Flash Data Report
/ Hayakawa, Hisashi ; Ebihara, Yusuke ; Mishev, Alexander ; Koldobskiy, Sergey ; et al
published in The Astrophysical Journal, 979 issue 1 (2025)
10.3847/1538-4357/ad9335
[SCART-2025-0080]
|
|
5.
| Science Article (Ref.) Analyses of Johannes Kepler’s Sunspot Drawings in 1607: A Revised Scenario for the Solar Cycles in the Early 17th Century
/ Hayakawa, Hisashi, ; Murata, Koji ; Teague, E. Thomas H. ; Bechet, Sabrina ; et al
published in The Astrophysical Journal Letters (2024)
10.3847/2041-8213/ad57c9
[SCART-2024-0181]
|
|
6.
| Science Article (Ref.) Katsue Misawa's sunspot observations in 1921-1934: a primary reference for the Wolfer-Brunner transition
/ Hayakawa, Hisashi ; Suyama, Toru ; Clette, Frédéric ; Bhattacharya, Shreya ; et al
published in Monthly Notices of The Royal Astronomical Society issue September 2023, pp. 4289-4303 (2023)
10.1093/mnras/stad2791
[SCART-2024-0142]
|
|
7.
| Science Article (Ref.) The Extreme Space Weather Event of 1872 February: Sunspots, Magnetic Disturbance, and Auroral Displays
/ Hayakawa, Hisashi ; Cliver, Edward W. ; Clette, Frédéric ; Ebihara, Yusuke ; et al
published in Astrophysical Journal, 959 issue 1, pp. 23 (2023)
10.3847/1538-4357/acc6cc
[SCART-2024-0141]
|
|
8.
| Science Article (Ref.) Magnitude Estimates for the Carrington Flare in 1859 September: As Seen from the Original Records
/ Hayakawa, Hisashi ; Bechet, Sabrina ; Clette, Frédéric ; Hudson, Hugh S. ; et al
published in The Astrophysical Journal , 954 issue 1 (2023)
10.3847/2041-8213/acd853
[SCART-2024-0081]
|
|
9.
| Science Article (Ref.) Scale Transfer in 1849 : Heinrich Schwabe to Rudolf Wolf
/ Bhattacharya, Shreya ; Lefèvre, Laure ; Hayakawa, Hisashi ; Jansen, Maarten ; et al
published in Solar Physics, 298 issue 1, pp. 12
10.1007/s11207-022-02103-4
[SCART-2023-0002]
|
|
10.
| Conf. Talk Hisako Koyama’s Sunspot Observations and their Digitization
/ Hayakawa, Hisashi ; Clette, Frédéric
Talk presented at ISSI Team Meeting 2, Recalibration of the Sunspot Number series, Bern, Switzerland on 2019-08-22
[CTALK-2020-0121]
|
guest ::
RSS feed.