Open Access
Table 1.
Observational details.
| Obs. date | PA | Region | No. of exp. | Exp. time | Total int. time |
|---|---|---|---|---|---|
| degrees | s | s | |||
| 28.04.2022 | 230 | Centre | 2 | 700 | 1400 |
| 28.04.2022 | 230 | –2″ offset | 2 | 700 | 1400 |
| 28.04.2022 | 230 | +2″ offset | 2 | 700 | 1400 |
| 28.04.2022 | 265 | Centre | 2 | 700 | 1400 |
| 28.04.2022 | 265 | –2″ offset | 2 | 700 | 1400 |
| 28.04.2022 | 265 | +2″ offset | 2 | 700 | 1400 |
| 29.04.2022 | 340 | Centre | 2 | 350 | 700 |
| 28.04.2022 | 355 | Centre | 2 | 700 | 1400 |
| 28.04.2022 | 355 | –2″ offset | 2 | 700 | 1400 |
| 28.04.2022 | 355 | +2″ offset | 2 | 700 | 1400 |
Notes. List of the position angles (PA) used to observe Mrk 231 using MODS at the LBT. The date of observation (universal time), region observed, number of exposures, integration time per exposure, and total integration time for each slit position are also listed.
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