Author Archives: Hiromasa Suzuki

We held the conference “PIXEL2026” at Miyazaki Kanko hotel. Around 150 people came to Miyazaki. The conference was about detectors used in high-energy particle physics and astrophysics. As an excursion, we went to the “Obi” old castle town and “Udo” shrine. One of the highlights will be organizers trying to act as tour (bus) guides!

I gave a presentation on an ongoing study of diffuse X-rays around microquasars at the conference “TeVPA” held in Tendo, Japan. We had a lot of discussion on how we keep updating our multi-wavelength work on microquasars. The welcome reception held at the Hiroshige museum was great as well. We were allowed to walk aroundContinue reading “TeVPA in Tendo, Japan”

I have attended for the first time the Galactic center conference (IAU symposium 405) held in the beautiful city, Brno, Czechia. It was probably my first time to attend a conference in a planetarium. It was a great experience. I was asked to give a talk about our XRISM observation of the supernova remnant SgrContinue reading “Galactic center conference@Brno, Czechia”

Experts in the high-energy astrophysical instruments gathered again in Bad Endorf, a beautiful city with the lake Pelham, 1 hour away from Munich, to have a yearly meeting on the international cross calibration of X-ray astronomical satellites (IACHEC 2026). This time I have shared the calibration status of XRISM Xtend and “flaring” events seen withContinue reading “IACHEC 2026@Bad Endorf in Germany”

A conference to showcase the XRISM’s performance and scientific results, and to discuss the future, has been held in Kyoto, Japan on Oct. 20–24 (XRISM 2025). It was an excellent experience to be there and to give a review talk on the plasma physics of supernova remnants. Many authorities in astronomy and astrophysics were thereContinue reading “XRISM international conference 2025 @Kyoto”

Our paper on the solar flare physics using the full performance of XRISM has been accepted for publication in PASJ (ADS). In its first ~2 years XRISM experienced a lot of solar flare events, which often made observable events in the detectors on XRISM. Although celestial observations are rarely affected, solar X-ray events are recordedContinue reading “XRISM solar flare paper”

We studied a TeV source without clear counterparts in other wavelengths but close to the supernova remnant G335.2+0.1 (Oka et al. 2025, ApJ; ADS). We used radio continuum, radio lines, X-rays, and gamma-rays to understand what is going on in this interesting system. What was unique was, in this system, we can trace some physicalContinue reading “Multi-wavelength study of a TeV-unidentified source near a supernova remnant”

The last XRISM team meeting was held in Leiden, Netherlands early July, 2025. Leiden was a beautiful city. We reviewed what we have learned with XRISM and what we can do in the future, later phase. I was happy to see that really a lot of scientific results are coming out, covering a broad rangeContinue reading “XRISM science meeting #8 in Leiden”

We held the 17th IACHEC meeting in Osaka, Japan. IACHEC is a consortium for international cross-calibration activities for X-ray detectors. More than 70 people attended from the US, Europe, China, Japan, etc. We are struggling to understand our own detectors by comparing own data with other detectors. Our recent major progress may include the understandingContinue reading “17th IACHEC meeting in Osaka!”

My new institute from this April is the University of Miyazaki, located in the southern part of Japan. Miyazaki is famous for many historical sites related to the creation myth of Japan. Here I will continue my work on astrophysics but also would like to broaden research topics.