Fig.1.1: Quasar 3C273 (Osaka Kyoiku University).
Fig.1.5: Schematic picture of accretion disks.
Fig.1.10: Schematic picture of T Tauri stars.
Fig.1.12: Schematic picture of cataclysmic variables.
Fig.1.17: Schematic picture of X-ray stars.
Fig.1.24: Cyg X-1 (Osaka Kyoiku University).
Fig.1.26: SS 433 (Osaka Kyoiku University).
Fig.1.28: Schematic picture of active galaxtic nuclei.