T. Takeda- A New Approach to X-ray Astronomy: Results of the CubeSat Observatory NinjaSat скачать в хорошем качестве

T. Takeda- A New Approach to X-ray Astronomy: Results of the CubeSat Observatory NinjaSat

Speaker: Tomoshi Takeda (Hiroshima University, Japan) Full Talk Title: A New Approach to X-ray Astronomy: Development and Observational Results of the CubeSat Observatory NinjaSat Abstract: In recent years, CubeSats, a class of small satellites consisting of several 10-cm cubic units, have been increasingly employed in astronomical missions. In X-ray astronomy, celestial sources must be observed from space to avoid attenuation of X-ray photons by the Earth's atmosphere. As a result, the advantages of CubeSats—such as their low cost and short development times—are gaining wider recognition, leading to an increasing number of CubeSat missions being planned. NinjaSat is the first Japanese 6U CubeSat observatory designed to observe bright X-ray sources, such as black holes and neutron stars. It was launched on November 11, 2023, by the SpaceX Transporter-9 mission and observed 32 X-ray sources during its two-year operation. We successfully demonstrated that CubeSat observations can provide valuable astronomical X-ray data, highlighting NinjaSat's pioneering role as a compact yet uniquely powerful observatory in time-domain astronomy. In this talk, I present an overview of NinjaSat, including the development of the gas X-ray detector, which is one of the most suitable choices for CubeSat applications, and student-led in-orbit operations. In addition, I present observational results of X-ray bursters, which are thought to be key sites for the production of proton-rich heavy nuclei. [Disclaimer: JINA-CEE provides dissemination of this video for educational purposes but does not claim ownership. JINA-CEE assumes that ownership and copyright of the online material presented here (video, audio, slides, text, etc) belongs to the author. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of JINA-CEE and/or of the National Science Foundation. Any person citing these materials for scholarly purposes should provide an appropriate reference.]