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Table 3:

Parameters for the source, the observation and data analyses for XTE J1814-338, XTE J1751-305 and SAX J1808.4-3658.

Pulsar names 		XTE J1814-338 XTE J1751-305 SAX J1808.4-3658
Source parameters          
Right ascension (J2000.0) 18$^{\rm h}$13$^{\rm m}$39 $.\!\!^{\rm s}$04 17$^{\rm h}$51$^{\rm m}$13 $.\!\!^{\rm s}$49 18$^{\rm h}$08$^{\rm m}$27 $.\!\!^{\rm s}$54
Declination (J2000.0) -33$^{\circ}$46$^{\prime}$22 $.\!\!^{\prime\prime}$3 -30$^{\circ}$37$^{\prime}$23 $.\!\!^{\prime\prime}$4 -36$^{\circ}$58$^{\prime}$44 $.\!\!^{\prime\prime}$3
Orbital period, $P_{\rm orb}$ (s) 15 388.7229(2) 2545.342(2) 7249.156980(4)
Projected semi-major axis, $a\sin i$ (lt-ms) 390.633(9) 10.125(5) 62.812(2)
Eccentricity, e ${<}2.4 \times 10^{-5}$ ${<}1.3 \times 10^{-3}$ ${<}1.2 \times 10^{-4}$
Spin period, $P_{\rm S}$ (s) 0.0031811056698(1) 0.002297172972(2) 0.00249391975978(6)
Mean spin period derivative, $\dot{P}_{\rm S}$ (s s-1) 6.7(7) $\times \ 10^{-19}$ -1.95(10) $\times \ 10^{-18}$ 4.7(9) $\times \ 10^{-19}$
Ascending node passage, T0 (MJD) 52797.8101689(9) 52 368.0129023(4) 52 499.9602472(9)
Distance, d (kpc) 8 6.7 3.5
Nominal DM (pc cm3) $\sim$200 $\sim$400 $\sim$100
References 1 2 3, 4
Observation parameters   1${\rm st}$ 2${\rm nd}$    
Central radio frequency, $\nu_{\rm obs}$ (GHz) 6.4105 8.4535 8.4535 8.4535 4.7495 6.3515
Data series time, $\Delta t$ (s) 25 053 10 669 17 145 22 864 35 685 35 051
Sampling time, $\delta t_{\rm sam}$ ($\mu$s) 92 50 60 100 125 125
Samples number, $N_{\rm s}$ 228 227 228 227 228 228
Nominal gaina, G (K Jy-1) 0.46 0.59 0.59 0.46
System temperaturea, $T_{\rm sys}$ (K) 50 25 25 50
Number of 3 MHz channels, $N_{\rm c}$ 192 192 192
Data analysis parameters          
Number of DMs 186 151 195 127 135 57
DM range (pc cm3) $\sim$50$\div$1000 $\sim$100$\div$1700 $\sim$20$\div$400
Local DM (pc cm3) $\sim$20 $\sim$260 $\sim$230
Number of $P_{\rm orb}$ steps 1 19 1
Number of folding steps 1 11 1
Other parameters          
Sky temperature, $T_{\rm sky}$ (K) 0.06 0.03 0.09 0.13 0.06
Dispersion broadening, $\delta t_{\rm DM}$ (10-8 s) 9.5 $\times$ DM 4.2 $\times$ DM 4.2 $\times$ DM 23 $\times$ DM 9.7 $\times$ DM
Scattering broadening, $\delta t_{\rm scatt}$ (s) $9.3 \times 10^{-9}$ $3.2 \times 10^{-9}$ $4.4\times 10^{-7}$ $9.6 \times 10^{-9}$ $3 \times 10^{-9}$

Notes. (a) Values derived from the Parkes website: http://www.parkes.atnf.csiro.au/observing/documentation/.

References. (1) Papitto et al. (2007); (2) Papitto et al. (2008); (3) Hartman et al. (2009); (4) Burderi et al. (2006).


Source LaTeX | All tables | In the text

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