Open Access
Table 1
Accretion luminosities (Lacc) and mass accretion rates (Ṁacc) for the three X-shooter epochs.
| 2010 May 04 | 2022 Mar. 27 | 2022 Jul. 29 | |||||
|---|---|---|---|---|---|---|---|
| Line | λ [nm] | Lacc [L⊙] | Ṁacc × 10−9 [M⊙ yr−1] | Lacc [L⊙] | Ṁacc × 10−7 [M⊙ yr−1] | Lacc [L⊙] | Ṁacc × 10−9 [M⊙ yr−1] |
| H15 | 371.20 | 0.04 ± 0.03 | 4.69 ± 3.17 | 1.03 ± 0.63 | 1.10 ± 0.67 | 0.04 ± 0.03 | 3.93 ± 2.68 |
| H14 | 372.19 | 0.05 ± 0.03 | 4.98 ± 3.16 | 2.20 ± 1.21 | 2.34 ± 1.28 | 0.04 ± 0.03 | 4.77 ± 3.03 |
| H13 | 373.44 | 0.06 ± 0.03 | 6.09 ± 3.68 | 2.31 ± 1.21 | 2.45 ± 1.28 | 0.06 ± 0.03 | 5.95 ± 3.60 |
| H12 | 375.02 | 0.07 ± 0.03 | 7.21 ± 3.61 | 1.71 ± 0.78 | 1.81 ± 0.82 | 0.05 ± 0.03 | 5.44 ± 2.75 |
| H11 | 377.06 | 0.08 ± 0.04 | 8.86 ± 4.37 | 2.75 ± 1.23 | 2.92 ± 1.31 | 0.09 ± 0.04 | 9.59 ± 4.72 |
| H10 | 379.79 | 0.08 ± 0.04 | 8.37 ± 4.68 | 3.05 ± 1.47 | 3.23 ± 1.57 | 0.10 ± 0.06 | 11.02 ± 6.09 |
| H9 | 383.54 | 0.10 ± 0.06 | 11.14 ± 6.13 | 1.14 ± 0.57 | 1.21 ± 0.61 | 0.13 ± 0.07 | 13.97 ± 7.61 |
| H8 | 388.90 | 0.13 ± 0.07 | 13.84 ± 7.20 | 4.54 ± 2.05 | 4.82 ± 2.18 | 0.18 ± 0.09 | 19.40 ± 9.94 |
| Ca II K | 393.37 | 0.09 ± 0.05 | 9.74 ± 5.08 | 17.02 ± 7.31 | 18.07 ± 7.76 | 0.14 ± 0.07 | 15.02 ± 7.68 |
| Ca II H | 396.85 | 0.09 ± 0.04 | 9.31 ± 4.10 | 8.62 ± 3.32 | 9.15 ± 3.52 | 0.15 ± 0.07 | 16.00 ± 6.92 |
| Hϵ | 397.01 | 0.10 ± 0.05 | 10.29 ± 5.40 | 4.22 ± 1.91 | 4.48 ± 2.02 | 0.11 ± 0.06 | 12.08 ± 6.30 |
| He I | 402.62 | 0.09 ± 0.06 | 9.28 ± 6.07 | 3.79 ± 2.17 | 4.02 ± 2.31 | 0.09 ± 0.06 | 9.62 ± 6.29 |
| Hδ | 410.17 | 0.12 ± 0.06 | 12.71 ± 6.55 | 4.79 ± 2.14 | 5.09 ± 2.28 | 0.19 ± 0.09 | 19.84 ± 10.04 |
| Hγ | 434.05 | 0.11 ± 0.05 | 11.69 ± 5.29 | 5.47 ± 2.24 | 5.80 ± 2.38 | 0.17 ± 0.08 | 18.48 ± 8.25 |
| He I | 447.15 | 0.10 ± 0.06 | 10.71 ± 6.86 | 2.67 ± 1.53 | 2.84 ± 1.63 | 0.12 ± 0.08 | 13.10 ± 8.33 |
| He II | 468.58 | 0.11 ± 0.11 | 12.15 ± 11.26 | 5.07 ± 4.24 | 5.38 ± 4.50 | 0.13 ± 0.12 | 14.24 ± 13.13 |
| He I | 471.31 | 0.04 ± 0.06 | 4.35 ± 6.16 | 0.62 ± 0.78 | 0.66 ± 0.83 | 0.05 ± 0.07 | 5.00 ± 7.02 |
| Hβ | 486.13 | 0.08 ± 0.04 | 8.54 ± 4.05 | 6.55 ± 2.59 | 6.96 ± 2.75 | 0.12 ± 0.06 | 12.66 ± 5.89 |
| He I Fe I | 492.19 | 0.08 ± 0.05 | 8.53 ± 5.80 | 6.74 ± 4.00 | 7.16 ± 4.24 | 0.08 ± 0.06 | 9.01 ± 6.12 |
| He I | 501.57 | 0.05 ± 0.03 | 4.87 ± 3.47 | 2.76 ± 1.72 | 2.93 ± 1.82 | 0.05 ± 0.04 | 5.84 ± 4.13 |
| He I | 587.56 | 0.08 ± 0.05 | 8.41 ± 5.18 | 3.95 ± 2.14 | 4.19 ± 2.27 | 0.10 ± 0.06 | 10.60 ± 6.48 |
| Na I | 589.00 | 0.02 ± 0.02 | 1.96 ± 2.08 | 3.60 ± 3.24 | 3.82 ± 3.44 | 0.03 ± 0.03 | 3.48 ± 3.63 |
| Na I | 589.59 | 0.02 ± 0.02 | 1.61 ± 1.80 | 2.02 ± 1.95 | 2.14 ± 2.07 | 0.03 ± 0.03 | 3.36 ± 3.69 |
| Hα | 656.28 | 0.03 ± 0.02 | 3.32 ± 1.83 | 3.34 ± 1.52 | 3.55 ± 1.61 | 0.03 ± 0.02 | 3.55 ± 1.95 |
| He I | 667.82 | 0.09 ± 0.09 | 9.83 ± 9.72 | 8.52 ± 7.39 | 9.05 ± 7.84 | 0.13 ± 0.13 | 14.29 ± 13.97 |
| He I | 706.52 | 0.07 ± 0.06 | 7.27 ± 6.29 | 4.13 ± 3.17 | 4.39 ± 3.36 | 0.08 ± 0.07 | 8.19 ± 7.06 |
| OI | 777.31 | 0.05 ± 0.08 | 5.40 ± 8.05 | 6.42 ± 8.30 | 6.82 ± 8.81 | 0.06 ± 0.09 | 6.76 ± 9.99 |
| OI | 844.64 | 0.01 ± 0.03 | 1.42 ± 2.81 | 5.14 ± 8.18 | 5.45 ± 8.68 | 0.02 ± 0.04 | 2.20 ± 4.28 |
| Ca II | 849.80 | 0.05 ± 0.04 | 5.71 ± 4.60 | 13.39 ± 9.23 | 14.22 ± 9.80 | 0.06 ± 0.05 | 6.32 ± 5.07 |
| Ca II | 854.21 | 0.05 ± 0.04 | 5.04 ± 4.31 | 10.34 ± 7.21 | 10.97 ± 7.65 | 0.06 ± 0.05 | 6.19 ± 5.25 |
| Ca II | 866.21 | 0.05 ± 0.04 | 4.79 ± 4.20 | 7.61 ± 5.49 | 8.07 ± 5.83 | 0.05 ± 0.05 | 5.50 ± 4.80 |
| Pa10 | 901.49 | 0.01 ± 0.01 | 0.83 ± 1.34 | 0.81 ± 1.11 | 0.86 ± 1.18 | 0.01 ± 0.01 | 0.65 ± 1.06 |
| Pa9 | 922.90 | 0.02 ± 0.02 | 1.99 ± 2.59 | 1.78 ± 2.01 | 1.89 ± 2.14 | 0.01 ± 0.02 | 1.37 ± 1.81 |
| Pa8 | 954.60 | 0.03 ± 0.06 | 3.70 ± 6.66 | 1.79 ± 2.78 | 1.90 ± 2.95 | 0.03 ± 0.06 | 3.36 ± 6.07 |
| Paδ | 1004.94 | 0.04 ± 0.05 | 3.94 ± 5.21 | 3.60 ± 4.06 | 3.82 ± 4.31 | 0.03 ± 0.05 | 3.65 ± 4.84 |
| Paγ | 1093.81 | 0.03 ± 0.03 | 3.39 ± 2.85 | 3.34 ± 2.37 | 3.55 ± 2.51 | 0.03 ± 0.02 | 3.05 ± 2.57 |
| Paβ | 1281.81 | 0.02 ± 0.02 | 2.26 ± 2.33 | 2.14 ± 1.85 | 2.27 ± 1.97 | 0.02 ± 0.02 | 2.39 ± 2.46 |
| Brγ | 2166.12 | 0.01 ± 0.02 | 1.46 ± 2.39 | 1.41 ± 1.97 | 1.50 ± 2.09 | 0.01 ± 0.02 | 1.04 ± 1.72 |
| Slab model | 0.16 | 17.20 | 1.48 | 1.57 | 0.29 | 31.00 | |
Notes. The Lacc values were calculated using the two methods explained in Sect. 5.2. The Ṁacc values shown here were calculated using the stellar radius and mass from Sipos et al. (2009), that is, R⋆ = 1.6 R⊙ and M⋆ = 0.6 M⊙.
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