Spectroscopically identified intermediate age stars at 0.5–3 pc distance from Sagittarius A*

This work was supported by KAKENHI, Grant-in-Aid for Research Activity Start-up 23840044, Specially Promoted Research 22000005, COE Research 23103001 and 24103508, Grant-in-Aid for Exploratory Research 15K13463, Grant-in-Aid for challenging Exploratory Research 15K13463, and Young Scientists (A) 25707012, and Institutional Program for Young Researcher Overseas Visits. R.S. acknowledges support by grants AYA2010-17631 and AYA2009-13036 of the Spanish Ministry of Economy and Competition, and by grant P08-TIC-4075 of the Junta de Andalucia. R.S. acknowledges support by the Ramon y Cajal programme of the Spanish-Ministry of Economy and Competition. This material is partly based upon work supported, in part, by the National Science Foundation Grant No. 1066293 and the hospitality of the Aspen Center for Physics. The research leading to these results has received funding from the European Research Council under the European Union's Seventh Framework Programme (FP/2007-2013)/ERC Grant Agreement No. [614922].