Open Access
Table 4.
Mrk 231 redshifts.
| PA | Offset | System | Redshift | Velocity |
|---|---|---|---|---|
| (kms−1) | ||||
| Centre | Emission | 0.0425 | 12 750 | |
| Centre | [O II]λ3727 emission | 0.0400 | 12 000 | |
| Centre | Absorption | 0.0262 | 7860 | |
| 230° | –2″ | Emission | 0.0426 | 12 780 |
| 230° | –2″ | [O II]λ3727 emission | 0.0421 | 12 630 |
| 230° | –2″ | Absorption | 0.0262 | 7860 |
| 230° | +2″ | Emission | 0.0423 | 12 690 |
| 230° | +2″ | [O II]λ3727 emission | 0.0425 | 12 750 |
| 230° | +2″ | Absorption | 0.0263 | 7890 |
| 265° | –2″ | Emission | 0.0424 | 12 720 |
| 265° | –2″ | [O II]λ3727 emission | 0.0424 | 12 720 |
| 265° | –2″ | Absorption | 0.0261 | 7830 |
| 265° | +2″ | Emission | 0.0424 | 12 720 |
| 265° | +2″ | [O II]λ3727 emission | 0.0424 | 12 720 |
| 265° | +2″ | Absorption | 0.0258 | 7740 |
| 355° | –2″ | Emission | 0.0422 | 12 660 |
| 355° | –2″ | [O II]λ3727 emission | 0.0424 | 12 720 |
| 355° | –2″ | Absorption | 0.0259 | 7770 |
| 355° | +2″ | Emission | 0.0424 | 12 720 |
| 355° | +2″ | [O II]λ3727 emission | 0.0428 | 12 840 |
| 355° | +2″ | Absorption | 0.0258 | 7740 |
Notes. All uncertainties are the 1σ standard error values. The values stated are calculated for an aperture of 1″.
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