Table 2
Measured line fluxes (F) and extinction corrected line intensities (I) of HaTr 5, together with synthetic line intensities.
| Line | ƒ(λ) | SAAO 2014 | SAAO 2024 | Shara et al. (2017) | Model | |||
|---|---|---|---|---|---|---|---|---|
| F/F(Hα) | I / I (Hα) | F/F(Hα) | I/I(Hα) | F/F(Hα) | I/I(Hα) | I/I(Hα) | ||
| [O II] 3726 | +0.26 | … | … | 0.55±0.19: | 1.68 : | … | … | 1.02 |
| Hδ 4101 | +0.18 | … | … | … | … | 0.03 | 0.08 | 0.09 |
| Hγ 4340 | +0.14 | … | … | … | … | 0.05 | 0.12 | 0.17 |
| He II 4686 | +0.05 | … | … | … | … | 0.017 | 0.035 | 0.02 |
| Hβ 4861 | 0.00 | 0.21 ±0.07 : | 0.40: | 0.18±0.04 | 0.34 | 0.19 | 0.36 | 0.36 |
| [O III] 5007 | −0.03 | … | … | 0.11±0.02 | 0.20 | 0.13 | 0.23 | 0.22 |
| [N II] 5755 | −0.21 | … | … | … | … | 0.015 | 0.02 | 0.01 |
| He I 5876 | −0.23 | … | … | … | … | 0.03 | 0.02 | 0.01 |
| [O I] 6300 | −0.30 | … | … | 0.61±0.02: | 0.66 : | 0.17 | 0.19 | 0.10 |
| [O I] 6363 | −0.30 | … | … | 0.15±0.02: | 0.16 : | 0.06 | 0.07 | 0.03 |
| [N II] 6548 | −0.34 | 0.26±0.06 | 0.26 | 0.25±0.02 | 0.25 | 0.35 | 0.36 | 0.31 |
| Hα 6563 | −0.34 | 1.00±0.06 | 1.00 | 1.00±0.02 | 1.00 | 1.00 | 1.00 | 1.00 |
| [N II] 6584 | −0.34 | 1.14±0.07 | 1.14 | 0.81±0.02 | 0.81 | 1.19 | 1.22 | 0.92 |
| [S II] 6716 | −0.36 | 0.55±0.06 | 0.53 | 0.37±0.02 | 0.36 | 0.30 | 0.30 | 0.33 |
| [S II] 6731 | −0.36 | 0.49±0.06 | 0.47 | 0.26±0.02 | 0.25 | 0.22 | 0.22 | 0.24 |
| F (Hα)a | 2.0 × 10−14 | 3.1 × 10−14 | … | … | ||||
| SB(Hα)a | 1.0 × 10−16 | 2.0 × 10−16 | 1.3 × 10−16 | 3.0 × 10−16 | ||||
Notes. The line fluxes and intensities are relative to Hα (=1.0). They correspond to observations obtained at SAAO on 2014 and 2024, and those from Shara et al. (2017), while the line intensity predictions have been derived from a Cloudy photoionization model. The observed Hα flux F(Hα) and surface brightness S B(Hα) are given in units of erg cm−2 s−1 and erg cm−2 s−1 arcsec−2, respectively. Line fluxes and intensities affected by large uncertainties are denoted by a “:” sign.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.