News&Topics
| October 3rd, 2025 |
Hoshinavi magazineA feature article introducing ten recent advances in astronomy, titled "25 Keywords to Understand the Present of Astronomy and Space Science," appeared in the October 2025 issue of Hoshinavi magazine. |
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| September 20th, 2025 |
The Astronomical HeraldA feature article titled "Origin of Cosmic Rays in the Galaxy" was published in the October 2025 issue of the Astronomical Herald, the bulletin of the Astronomical Society of Japan. |
| June 18th, 2025 |
University NewsletterAn interview article featuring our work and the 11-m telescope appeared in the June 2025 issue of Gifu University's public relations magazine Ibuki. |
Research Interest
Multi-wavelength analysis of supernova remnants |
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Recently, an analysis that combines two or more wavelength data (multi-wavelength analysis) has received much attention as an approach to understanding complicated astronomical phenomena. This is an attempt to reveal an astronomical object from various aspects because different physical processes can be studied at different wavelengths. For instance, the radio emission line at 2.6 mm wavelength can trace molecular hydrogen clouds (-263 K), whereas X-rays can reveal plasma at ten million K and/or synchrotron radiation from relativistic electrons.
Supernova remnants (*1) are suitable targets for the multi-wavelength analysis because they are bright in almost all wavelengths (Fig.1). I am promoting studies that reveal the origin of cosmic-rays (100 years problem in modern astrophysics) by multiwavelength analysis.
*1: A diffuse nebula originated by a supernova explosion in which certain stars end their lives. Supernova remnants have a profound influence on the interstellar space via shock waves, cosmic-ray acceleration, and injection of heavy elements.