P100016936

CG/Illustration/Data

2025/05/15

Satellites and Spacecraft > Astronomical Observation Satellites > X-Ray Imaging and Spectroscopy Mission (XRISM)
Observation Images > Astronomical Observation

.Absorption line spectrum of PDS 456 captured by XRISM’s soft X-ray spectrometer, Resolve. In the top graph, the white lines and dots show the observed data, while the red lines represent the spectral model. The five panels below illustrate how gas moving at different velocities appears as absorption lines at varying energies due to the Doppler effect. These complex absorption features are caused by at least five distinct, bullet-like winds. The strongest absorption lines in each panel correspond to helium-like iron ions (iron atoms with only two electrons).

JAXA

For the media, educational and commercial use

https://www.xrism.jaxa.jp/en/