Table 1
Sources, average accretion rate Ṁobs,18 and accretion period tacc inferred from observations.
| Source | Ṁ obs,18 | t acc | Exponential fit | Power, broken power-law fits | ||||||
| (g s-1) | (yr) | a (eV) | τ (d) | b (eV) | χ 2 | α (eV) | β1,β2 × 10-3 | tb (d) | χ 2 | |
|
|
||||||||||
| MXB 1659−29(a) | 0.07–0.18 | 2.5 | 73± 2 | 465± 25 | 54± 2 | 0.8 | – | |||
|
|
||||||||||
| KS 1731−260(b) | 0.05–0.3 | 12.5 | 39.8± 2.3 | 418± 70 | 67.7± 1.3 | 2.00† | 174.7± 1.3 | β1 = − 12.5± 7 | 0.88 | |
|
|
||||||||||
| EXO 0748−676 | 0.03 | 24 | ||||||||
| Chandra (c) | 17.2± 1.8 | 266± 100 | 106.2± 2.5 | 0.02 | – | |||||
| Swift (d) | 13.4± 0.2 | 192± 10 | 107.9± 0.2 | 0.34 | 135.0± 17.8 | β1 = − 30± 30 | 166± 99 | 0.3 | ||
| β2 = − 60± 20 | ||||||||||
| XMM-Newton (d) | 17.2± 5.8 | 133± 88 | 109.1± 2.2 | 0.06 | 141.0± 8.4 | β1 = − 40± 10 | 0.4 | |||
| all data (d) | 14.0± 1.4 | 220± 65 | 107.6± 1.5 | 0.39 | 135.8± 2.5 | β1 = − 35± 3 | 0.51 | |||
|
|
||||||||||
| XTE J1701−462(e) | 1.1 | 1.6 | 36.9± 1.7 |
|
123.4± 0.9 | 1.07 | 168.8± 5.7 | β1 = − 30± 13 |
|
0.88 |
| β2 = − 69± 4 | ||||||||||
|
|
||||||||||
| IGR J17480−2446(f) | 0.2 | 0.17 | 21.6±4 | 157±62 | 84.3±1.4 | 1.84 | 147.9±12.7 | β1 = − 47± 5 | 1.2†† | |
Notes. Coeficients for exponential (kBTs = a e− (t − t0) /τ + b), power-law (kBTs = α(t − t0)β1) and broken power-law fits (kBTs = α(t − t0)β1, kBTs = (t − tb)β2). †= fit inconsistent with the last observation; ††= fit considers a constant offset of b = (77.3 ± 1.0) eV.
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