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Table A.1
Visual magnitudes, V, with standard deviation errors, ΔV, at the time of the XMMSS X-ray observation, from the AAVSO archive.
| Source | JD | V | ΔV | O.L. for M0 | O.L. for M8 |
| [γ pix-1 fr.-1] | [γ pix-1 fr.-1] | ||||
|
|
|||||
| W Cyg | 2454434.2 | 6.1 | 0.3 | 49 | 335 |
| R Dor | 2453831.9 | 6.1 | 0.2 | 49 | 335 |
| R Leo | 2454045.7 | 10.0 | 0.3 | 1.4 | 9.2 |
| L2 Pup | 2453069.5 | 6.9 | 0.5 | 23 | 160 |
| SS Vir | 2453532.4 | 8.0 | 0.5 | 490 | 3360 |
Notes. The last two columns give the results of the optical loading calculations (in photons pixel-1 frame-1) for an M0 and an M8 source, respectively (see text for details).
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