Indian researchers combine spacecraft data to study solar eruptions
インドの研究チーム、探査機のデータを組み合わせ太陽噴出現象を分析テクノロジー
- Country:
- 🇮🇳 India
- Voice:
- 🇬🇧 Sophie
英語本文
Scientists at the Indian Institute of Astrophysics in Bengaluru, India, have combined measurements from India’s Aditya-L1 and Europe’s Proba-3 missions to study two solar eruptions. Their study in Astronomy & Astrophysics examines events observed on September 14 and 16, 2025. These coronal mass ejections send magnetised plasma, or electrically charged gas, from the Sun into space.
Aditya-L1 uses spectroscopy to measure gas temperature and density in the corona, the Sun’s outer atmosphere. Proba-3 photographs it in visible light and a green emission line, using two spacecraft about 150 metres apart to create an artificial eclipse. The September 14 eruption travelled at about 645 kilometres per second; the September 16 event at about 145 kilometres per second.
Independent estimates of mass and thermal energy agreed closely, strengthening confidence in the measurements. Faint eruptions near the Sun are difficult to track; combining instruments lets researchers check their properties through different methods. Eruptions directed towards Earth can affect satellites and the surrounding space environment.