Table 1
Past surveys dedicated to the periodicity (PS) and single-pulse (SPS) pulsar searches in nearby galaxies.
| Galaxy | d | Telescope | Fcntr | Δν | Tsamp | Tint | Smin [PS] | Speak [SPS] | Reference |
| (Mpc) | (MHz) | (MHz) | (μs) | (hrs) | (Jy) | (Jy) | |||
|
|
|||||||||
| M 33 | 0.84 | Arecibo | 430 | 10 | 102.4 | 3.0 | 0.2 × 10-3 | 0.5 | 1 |
| 1440 | 100 | 64 (100) | 2.0 (3.0) | 5.3 × 10-6 | 0.1 | 2 | |||
| NGC 253, NGC 300, Fornax | 3.0, 2.0, 16.9 | Parkes | 435 | 32 | 420 | 3.0 | (...) | 0.09 | 1 |
| NGC 6300, NGC 7793 | 16.9, 3.5 | ||||||||
| Leo I (dSph galaxy) | 0.25 | GBT | 350 | 100 | 81.92 | 20.0 | ~2.0 × 10-4 | ~0.04 | 3 |
| IC 10 | 0.66 | 820 | 200 | 204.8 | 16.0 | 1.5 × 10-5 | 0.02 | 4 | |
| Willman 1, Boo dw, UMi dw | 0.046, 0.062, 0.075 | GBT (Arecibo) | 820 (327) | 50 (50) | 81.92 (128) | 3.3, 4.4, 5.3 | (...) | 0.5 (1.54), 0.3 (1), 1.6 (5), each × 103 | 5 |
| Dra dw, Scl dw, Sex dw | 0.078, 0.093, 0.099 | 3.6, 2.8, 3.25 | 2.3 (7), 2.3 (7.1), 2.3 (7.1), each × 103 | ||||||
| CVn I, Leo I-II, UMa II | 0.23, 0.28, 0.23, 0.25 | 6.2, 21.9, 10.9, 2.0 | 4 (12), 6 (19), 4 (12), 19 (57), each × 103 | ||||||
| And II, III, VI, XI-XIV | 0.9 | 1.4, 1.1, 2.5, 3.9, 3.7, 3.0, 2.0 | 64 (198), each × 103 | ||||||
| Leo T, Leo A | 0.4, 0.78 | 4.2, 6.1 | 13 (40), 44 (136), each × 103 | ||||||
| IC 1613, LGS 3, Peg dw | 0.9, 0.93, 0.93 | 3.5, 3.9, 2.5 | 63 (195), 67 (207), 67 (207), each × 103 | ||||||
| M 31 | 0.8 | WSRT | 328 | 10 | 409.6 | 32.0 | 0.3 × 10-3 | 2.8 | 6 |
Notes. Tabulated are: galaxy, its distance, the telescope, central frequency, bandwidth in MHz, sampling time in μs, total dwell time in hours, and the obtained average (for PS), and peak (for SPS) flux densities in Jy.
Reference. (1) McLaughlin & Cordes (2003); (2) Bhat et al. (2011); (3) Rubio-Herrera & Maccarone (2013); (4) Noori et al. (2014); (5) Kondratiev et al. (2013) and Kondratiev (priv. comm.); (6) Rubio-Herrera et al. (2013).
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