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机译:The near-infrared spectral index of Sagittarius A* derived from K s- and H -band flare statistics
I. Physikalisches Institut, Universit?t zu K?ln, Zülpicher Str.77, 50937 K?ln, Germany;
Institut für Theoretische Physik, Astrophysik der Universit?t zu Kiel, Germany;
Instituto de Astrofísica de Andalucía (CSIC), Glorieta de la Astronomía S/N, 18008 Granada, Spain;
Accretion accretion disks; Black hole physics; Galaxy: center; Galaxy: nucleus; Infrared: general;