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Long Term Study of the Double Pulsar J0737-3039 with XMM-Newton: pulsar timing by Iacolina, M. N.; Pellizzoni, A.; Egron, E.; Possenti, A.; Breton, R.; Lyutikov, M.; Kramer, M.; Burgay, M.; Motta, S. E.; De Luca, A.; Tiengo, A. is a scholarly article available to read on EtoBox.

What is Long Term Study of the Double Pulsar J0737-3039 with XMM-Newton: pulsar timing about?

The relativistic double neutron star binary PSR J0737-3039 shows clear evidence of orbital phase-dependent wind-companion interaction, both in radio and X-rays. In this paper we present the results of timing analysis of PSR J0737-3039 performed during 2006 and 2011 XMM-Newton Large Programs that collected ~20,000 X-ray counts from the system. We detected pulsations from PSR J0737-3039A (PSR A) through the most accurate timing measurement obtained by XMM-Newton so far, the spin period error being of 2x10^-13 s. PSR A's pulse profile in X-rays is very stable despite significant relativistic spin precession that occurred within the time span of observations. This yields a constraint on the misalignment between the spin axis and the orbital momentum axis Delta_A ~6.6^{+1.3}_{-5.4} deg, consistent with estimates based on radio data. We confirmed pulsed emission from PSR J0737-3039B (PSR B) in X-rays even after its disappearance in radio. The unusual phenomenology of PSR B's X-ray emission includes orbital pulsed flux and profile variations as well as a loss of pulsar phase coherence on time scales of years. We hypothesize that this is due to the interaction of PSR A's wind with PSR B's

Author

Iacolina, M. N.; Pellizzoni, A.; Egron, E.; Possenti, A.; Breton, R.; Lyutikov, M.; Kramer, M.; Burgay, M.; Motta, S. E.; De Luca, A.; Tiengo, A.

Published

2015

Language

EN