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Table 2
Extinction coefficients.
| Object | c(Hβ) | H i linesa | Te (K), ne (cm-3) | Literature | Ref.c |
|
|
|||||
| Cn 1-5 | 0.56 ± 0.05 | H16-H3, P25-P10 | 8700, 5000 | 0.42, 0.1 | 1, 2 |
| Hb 4 | 1.81 ± 0.14 | H16-H3, P25-P10 | 10 000, 6700 | 1.76, 2.3 | 1, 2 |
| He 2-86 | 2.10 ± 0.10 | H16-H3, P25-P10 | 9000, 12 000 | 2.49 | 1 |
| M 1-25 | 1.41 ± 0.09 | H15-H3, P25-P10 | 8000, 8000 | 1.46, 1.0, 1.42 | 1, 2, 3 |
| M 1-30b | 1.00 ± 0.08 | H25-H3, P25-P10 | 7000, 4900 | 1.01, 1.04 | 1, 3 |
| M 1-32b | 1.30 ± 0.13 | H16-H3, P25-P10 | 9750, 9250 | 1.30, 1.9 | 1, 2 |
| M 1-61 | 1.24 ± 0.10 | H16-H3, P25-P10 | 9000, 15 000 | 1.71 | 1 |
| M 3-15 | 2.09 ± 0.13 | H6-H3, P25-P10 | 11 000, 5000 | 2.08, 2.3, 2.12 | 1, 2, 3 |
| NGC 5189 | 0.47 ± 0.08 | H16-H3, P25-P10 | 10 000, 500 | 0.44 | 1 |
| NGC 6369b | 1.93 ± 0.06 | H16-H3, P25-P10 | 8600, 1750 | 1.91, 1.9 | 1, 2 |
| PC 14 | 0.63 ± 0.06 | H16-H3, P25-P10 | 10 000, 3000 | 0.65 | 1 |
| Pe 1-1 | 1.80 ± 0.09 | H16-H3, P25-P10 | 10 000, 18 000 | 2.16 | 1 |
Notes.
(a)
H14, H10, and H8 (blended with other emission lines) and Paschen lines blended with telluric emission lines are excluded.
(c)
(1) Girard et al. (2007); (2) Peña et al. (2001); (3) Górny et al. (2009).
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