Image Details
Caption: Figure 1.
SWIFT BAT hard X-ray light curve for the Be/X-ray binary 1A 0535+262 from 2005 January to 2010 January. A number of regular outbursts (type I) are detected in addition to the giant outbursts (type II) in 2005 and 2009. The inset shows a zoom in on the 2009 giant outburst; the lines mark the times of our Chandra HETGS observations (see the text). For reference, a flux of ~0.22 counts s −1 cm −2 is normally measured from the Crab pulsar.
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