Observed and derived parameters for the Crab pulsar. The spin parameters were obtained by fitting a three-derivative Taylor series to the frequency data presented in Fig. 1(a). The standard errors determined in the analysis are given in parentheses after the values and are in units of the least significant digit.
| Parameter . | Value . |
|---|---|
| Data span (MJD) | 40175–56665 |
| Epoch t0 (MJD) | 48442.5 |
| ν0 (Hz) | 29.946 923(1) |
| |$\dot{\nu }_0$| (10−10 Hz s−1) | −3.775 35(2) |
| |$\ddot{\nu }_0$| (10−20 Hz s−2) | 1.1147(5) |
| |$\stackrel{...}{\nu }_0$| (10−30 Hz s−3) | −2.73(4) |
| rms residual (Hz) | 0.000 0058 |
| Maximum frequency residual (Hz) | 0.000 013 |
| Mean braking index n | 2.342(1) |
| Parameter . | Value . |
|---|---|
| Data span (MJD) | 40175–56665 |
| Epoch t0 (MJD) | 48442.5 |
| ν0 (Hz) | 29.946 923(1) |
| |$\dot{\nu }_0$| (10−10 Hz s−1) | −3.775 35(2) |
| |$\ddot{\nu }_0$| (10−20 Hz s−2) | 1.1147(5) |
| |$\stackrel{...}{\nu }_0$| (10−30 Hz s−3) | −2.73(4) |
| rms residual (Hz) | 0.000 0058 |
| Maximum frequency residual (Hz) | 0.000 013 |
| Mean braking index n | 2.342(1) |
Observed and derived parameters for the Crab pulsar. The spin parameters were obtained by fitting a three-derivative Taylor series to the frequency data presented in Fig. 1(a). The standard errors determined in the analysis are given in parentheses after the values and are in units of the least significant digit.
| Parameter . | Value . |
|---|---|
| Data span (MJD) | 40175–56665 |
| Epoch t0 (MJD) | 48442.5 |
| ν0 (Hz) | 29.946 923(1) |
| |$\dot{\nu }_0$| (10−10 Hz s−1) | −3.775 35(2) |
| |$\ddot{\nu }_0$| (10−20 Hz s−2) | 1.1147(5) |
| |$\stackrel{...}{\nu }_0$| (10−30 Hz s−3) | −2.73(4) |
| rms residual (Hz) | 0.000 0058 |
| Maximum frequency residual (Hz) | 0.000 013 |
| Mean braking index n | 2.342(1) |
| Parameter . | Value . |
|---|---|
| Data span (MJD) | 40175–56665 |
| Epoch t0 (MJD) | 48442.5 |
| ν0 (Hz) | 29.946 923(1) |
| |$\dot{\nu }_0$| (10−10 Hz s−1) | −3.775 35(2) |
| |$\ddot{\nu }_0$| (10−20 Hz s−2) | 1.1147(5) |
| |$\stackrel{...}{\nu }_0$| (10−30 Hz s−3) | −2.73(4) |
| rms residual (Hz) | 0.000 0058 |
| Maximum frequency residual (Hz) | 0.000 013 |
| Mean braking index n | 2.342(1) |
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