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机译:4U 1909+07: A well-hidden pearl
Dr. Karl Remeis-Sternwarte and ECAP, Universit?t Erlangen-Nürnberg, Sternwartstr. 7, 96049 Bamberg, Germany;
Center for Astrophysics and Space Sciences, University of California, 9500 Gilman Drive, San Diego, CA 92093, United States;
CRESST, NASA Goddard Space Flight Center, Astrophysics Science Division, Greenbelt, MD 20771, United States;
Accretion; accretion disks; Stars: neutron; X-rays: binaries;