Radiative properties and images of the short-hairy black hole surrounded by a thin accretion disk are studied. After studying the geodesic motion of massive test particles in the equatorial plane of the short-hairy black hole, the radiative efficiency of the black hole is calculated, and it is found that the short hair term results in the increase of the radiative efficiency. Then, the radiative properties, such as radiative flux, effective temperature, and spectral luminosity, of the thin accretion disk around the short-hairy black hole are investigated and the impact of parameters $a$, $Q$, and $k$ on these properties is also discussed. Several examples with concrete black hole masses and accretion rates for the radiative properties are also illustrated and compared with the corresponding Kerr cases. Finally, by using the ray-tracing method, the observational appearance of the short-hairy black hole illuminated by the thin accretion disk is presented for various inclination angles. Compared with the Kerr case, the short hair term leads to tiny shrink of the black hole images.

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• Accretion disk & black-hole plasma
• Classical black holes