Table 3.
Details of the LOFAR observations of LkCa 4.
| Project code | LoTSS pointing | Date | Time | Duration | ν | Δν | σrms | Phase |
|---|---|---|---|---|---|---|---|---|
| (h) | (MHz) | (MHz) | (μJy) | |||||
| L12_015 | P061+29 | 2019-06-28 | 05:11:00 | 8.0 | 144 | 48 | 230 | 0.00 − 0.10 |
| L12_015 | P062+26 | 2019-07-06 | 04:52:15 | 8.0 | 144 | 48 | 240 | 0.37 − 0.47 |
| L12_015 | P065+26 | 2019-07-07 | 04:59:59 | 8.0 | 144 | 48 | 280 | 0.67 − 0.77 |
| L12_015 | P064+29 | 2019-08-10 | 02:11:00 | 8.0 | 144 | 48 | 150 | 0.71 − 0.81 |
Notes. The Date and Time columns refer to the time in UTC at the start of each observation. ν is the central frequency of the observation, and Δν is the bandwidth. σrms is the root-mean-square noise in Stokes I at the position of LkCa 4. The rotation phase is calculated using the known rotation period of LkCa 4 of 3.37 d (Grankin et al. 2008) such that phase 0.0 corresponds to the beginning of the observation of LoTSS pointing P061+29 (2019-06-28 05:11:00).
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