共 50 条
- [1] Hardness ratio estimation in low counting X-ray photometry ASTROPHYSICAL JOURNAL, 2006, 653 (02): : 1566 - 1570
- [3] Discovery of twin kHz QPOs in the peculiar X-ray binary circinus X-1 (vol 653, pg 1453, 2006) ASTROPHYSICAL JOURNAL, 2007, 664 (01): : 596 - 596