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Astron. Astrophys. 354, L57-L61 (2000) AcknowledgementsWe sincerely thank H. Tomida and K. Koyama for providing us the ASCA data. We thank the referee very much for his helpful comments on the paper. This work is supported by a Grant-in-Aid for Scientific Research from Japan's Ministry of Education, Science, and Culture, a grant from the Australian Research Council and the (Australian) National Committee for Astronomy (Major National Research Facilities Program), and the Sumitomo Foundation. The receipt of JSPS Research Fellowships (SH, AK, GPR, KS, and TY) is also acknowledged. ![]() ![]() ![]() ![]() © European Southern Observatory (ESO) 2000 Online publication: January 31, 2000 ![]() |