Table 1
Structural parameters and numbers of single and binary pulsars of globular clusters with three or more pulsars.
| Cluster | log rc | log ρc | γ | N s | N b | ||
| (pc) | (L⊙ pc-3) | (γM 4) | |||||
|
|
|||||||
| a | NGC 6522 | −0.95c | 5.48 | 55.1 | 3 | 0 | |
| b | NGC 6624 | −0.86c | 5.30 | 36.4 | 5 | 1 | |
| c | NGC 6517 | −0.73c | 5.29 | 26.8 | 3 | 1 | |
| d | NGC 6752 | −0.70c | 5.04 | 18.8 | 4 | 1 | |
| e | NGC 6440 | −0.46 | 5.24 | 13.5 | 3 | 3 | |
| f | Terzan 5 | −0.49 | 5.14 | 13.0 | 16 | 18 | |
| g | NGC 6441 | −0.36 | 5.26 | 10.9 | 2 | 2 | |
| h | NGC 6266/M 62 | −0.36 | 5.16 | 9.8 | 0 | 6 | |
| i | NGC 7078/M 15 | −0.37c | 5.05 | 8.9 | 7 | 1 | |
| j | NGC 6626/M 28 | −0.42 | 4.86 | 7.9 | 4 | 8 | |
| k | NGC 104/47 Tuc | −0.33 | 4.88 | 6.6 | 8 | 15 | |
| l | NGC 5904/M 5 | −0.02 | 3.88 | 1.0 | 1 | 4 | |
| m | NGC 5272/M 3 | 0.04 | 3.57 | 0.6 | 0 | 4 | |
| n | NGC 6205/M 13 | 0.11 | 3.55 | 0.5 | 2 | 3 | |
Notes. Core radius rc and central density ρc from Harris (1996, update of 2010), with “c” indicating a core-collapsed cluster. The disruption rate γ is scaled on the value for M 4, from Eq. (2). Numbers Ns of single pulsars and Nb of pulsars in binaries from www.naic.edu/~pfreire/GCpsr.html (retrieved 7 Sep. 2012).
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