From the analysis of a ∼100 ks Chandra observation of the dwarf starburst galaxy NGC 1569, we have found that the X-ray point sources, CXOU 043048.1+645050 and CXOU 043048.6+645058, showed significant time variability. During this observation, the X-ray flux of CXOU 043048.1+645050 increased by 10 times in only 2 × 10 4 s. Since the spectrum in its bright phase was fitted with a disk blackbody model with kT in ≈ 0.43 keV and the bolometric luminosity is L bol ≈ 10 38 ergs s −1 , this source is an X-ray binary with a stellar mass blackhole. Since the spectrum in its faint phase was also fitted with a disk blackbody model, the time variability can be explained by a change of the accretion rate onto the black hole. The other variable source, CXOU 043048.6+645058, had a flat spectrum with a photon index of ∼1.6. This source may be an X-ray binary with an X-ray luminosity of several × 10 37 ergs s −1 . In addition, three other weak sources showed possible time variability. Taking all of the variability into account may suggest an abundant population of compact X-ray sources in NGC 1569.
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