The near-infrared spectral index of Sagittarius A* derived from Ks- and H-band flare statisticsM. Bremer, G. Witzel, A. Eckart, M. Zamaninasab, R. M. Buchholz, R. Schödel, C. Straubmeier, M. García-Marín and W. DuschlA&A, 532 (2011) A26DOI: https://doi.org/10.1051/0004-6361/201016134
