ner_tags: O O O O O O O O O O O O O O O O O O O B-Person I-Person O O O O O O O O O O O O O O O B-Person I-Person O O O B-Person O B-Person I-Person O B-Person I-Person O O O B-Person B-Person O O O O B-Grant I-Grant B-Person O O O O O B-Organization O B-Grant O B-Grant B-Person O O O O O B-Organization B-Grant I-Grant I-Grant B-Grant O B-Grant B-Person O O O O B-Grant I-Grant I-Grant O B-Grant O B-Organization B-Grant I-Grant I-Grant
tokens: Acknowledgments We thank the Referee for providing a constructivereport that has improved the presentation of the results. We thank P. Nulsen for providing the software required to produce the SB fit reported in Fig. 4 and M. Markevitch for useful discussion. AI thanks A. Botteon and G. Lanzuisi for useful discussions. MG, GB acknowledge partial support from PRIN-INAF 2014. EOS was supported in part by NASA grants GO5-16123X and GO6-17121X. CLS was supported in part by NASA Chandra grants GO4-15123X, GO5-16131X, and GO5-16146X. KWW was partially supported by Chandra grants GO5-16125X and GO6-17108X, and NASA ADAP grant NNH16CP10C.