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Table 2.
Observation details.
| Cluster | Observation | Frequency | Integration | Target position | Coherent DM |
|---|---|---|---|---|---|
| (Epoch) | (MHz) | Time (s) | (pc cm−3) | ||
| NGC 1851 ( * ) | 58051 | 400 | 2400 | J0514−4002A | 52.15 |
| Terzan 5 | 58332 | 650 | 6660 | Cluster center | 238.73 |
| NGC 6440 | 58363 | 650 | 7498 | J1748−2021A | 223.00 |
| NGC 6441 | 58332 | 650 | 6660 | J1750−3703C | 232.00 |
| NGC 6539 ( * ) | 57829 | 400 | 9744 | B1802−07 | 186.32 |
| NGC 6544 | 58363 | 650 | 7500 | J1807−2459A | 135.50 |
| NGC 6652 | 58084, 58165 | 400 | 2400 | J1835−3259A | 63.35 |
| M30 | 58102 | 400 | 1938 | J2140−2310B | 25.09 |
Notes. ( * )Only the longest epoch was searched in this survey; we plan to search the whole dataset thoroughly in the future.
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