Welcome

We explore physics behind hot, energetic phenomena in the universe through a wide variety of telescopes including space-based X-ray observatories. Our research particularly focuses on high energy physical processes associated with supernova remnants, neutron stars, and black holes. We also develop new observational instruments for future satellite missions.

私たちは、宇宙X線観測衛星をはじめとする様々な望遠鏡の観測データを用いて、熱く激しい天体現象に潜む物理を突き止めようとしています。特に超新星残骸や中性子星・ブラックホールにおける高エネルギー物理過程を精力的に研究しています。また、将来の衛星搭載を目指して新しい観測機器の開発も進めています。

News

Award

Two Bamba Lab. students received the Best Poster Award at the International Research Meeting.

Two Bamba Lab students, Toshiya Iwata (D2) and Riki Sato (M1), received the Best Poster Award at the international workshop “XRISM Science Workshop for Young Researchers 2024” held at Tokyo Metropolitan University. Congratulations! Best Poster AwardToshiya Iwata 　”Probing relativistic effects in black hole accretion with high-resolution spectroscopy and polarimetry”Poster AwardRiki Sato 　”Revealing the structure of AGN outflows through a time-variability study”

Paper

The paper by Mr. Iwata has been accepted.

The paper, entitled “Multi-epoch X-ray spectral analysis of Centaurus A: revealing new constraints on iron emission line origins,” by Mr. Iwata was accepted for publication in PASJ. In this paper, we performed X-ray echo mapping and spectral analysis to elucidate the central structure of the radio galaxy Centaurus A. For more information, please click here.

Paper

The paper by Mr. Iwata has been accepted.

“Development of the X-ray polarimeter using CMOS imager: polarization sensitivity of a 1.5 μm pixel CMOS sensor” was accepted for publication in NIM-A. Bamba Lab has been working on the project “cipher”, which aims to observe polarized X-rays with a tiny pixel CMOS sensor. In this paper, we evaluate the X-ray polarization measurement performance of a CMOS sensor with a pixel size of 1.5 μm and show that the polarization measurement performance improves with decreasing pixel size. For more information, please click here.

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