Open Access
Table 2.
PULX Properties
| Parameter | ULX-7 M51 | M82 X-2 | NGC 7793 P13 |
|---|---|---|---|
| a* [10−4] | 1.3 | 2.8 | 9.1 |
| rLT [10 km] | 4.6 | 3.2 | 3.3 |
| Non-beamed models | |||
| λEdd | 20 | 200 | 50 |
| B [1012 G] | 0.8–70 | > 10 | 5 |
| rM [10 km] | 16-210 | 36 | 36 |
| Beaming model | |||
| b | 0.09 | 0.06 | 0.18 |
| λEdd | 1.8 | 12 | 9 |
| B [1010 G] | 0.69–19 | 10 | 1 |
| rM [10 km] | 2.1–14 | 6 | 2 |
Notes. The radial distance, rLT, at which the Lense-Thirring precession frequency of the inner disk and torus matches νQPO, is contrasted with the magnetospheric radius, rM, in both beaming and non-beamed models of the three PULXs. General-relativistic precession modes can exist only when rLT > rM.
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