observational overview of state transitions in x-ray binaries
observational overview of state transitions in x-ray binaries
observational overview of state transitions in x-ray binaries
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GRO J1655-40<br />
weak abs. l<strong>in</strong>es<br />
weak emission l<strong>in</strong>es<br />
WINDS<br />
keV -1<br />
)<br />
Residuals (Counts s -1<br />
5<br />
0<br />
-5<br />
-10<br />
-15<br />
-20<br />
-25<br />
-30<br />
5 6 7 8 9 10<br />
Energy (keV)<br />
The second example is GRO J1655-40, which had a few more observations. The hardest<br />
observation showed an iron emission l<strong>in</strong>es (not shown on slide). Go<strong>in</strong>g to the s<strong>of</strong>ter ones, we<br />
start see<strong>in</strong>g weak absorption l<strong>in</strong>es (not shown slide). The slightly harder observations, <strong>in</strong><br />
green, start show<strong>in</strong>g stronger iron absorption l<strong>in</strong>es, and the s<strong>of</strong>test one, marked by the red<br />
star, shows a complete forest <strong>of</strong> l<strong>in</strong>es. This <strong>in</strong>dicates an ever stronger grow<strong>in</strong>g w<strong>in</strong>d as we<br />
move from hard to s<strong>of</strong>t. This h<strong>in</strong>ts at an anti-correlation between jet outflows and w<strong>in</strong>d<br />
outflows. Such an anti-correlation was more directly observed <strong>in</strong> the microquasar GRS<br />
1915+105 by Joey Neilsen and Julia<br />
Lee. Obviously, more simultaneous observations are needed to from a more complete picture.