Pulsations from the Vela Jr. CCO: Another Phase Shifter?

Details Pulsations from the Vela Jr. CCO: Another Phase Shifter? Pulsations from the Vela Jr. CCO: Another Phase Shifter?

Oct 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009xmm..prop...98h&link_type=abstract

XMM-Newton Proposal ID #06525101

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Supernovae, Supernova Remnants, Diffuse (Galactic) Emission And Isolated Neutron Stars, Vela Jr. Cco

Scientific paper

We detect a possible spin period from the compact X-ray source in the Vela Jr. SNR. The period and spectrum are consistent with those of the three other CCO pulsars. The pulsed light curve has an abrupt, half-cycle phase shift at the cross-over energy of the two-blackbody fit to the spectrum, like that found for the Puppis A CCO pulsar. We propose to confirm this result and obtain the all-important second period measurement to characterize the spin-down properties of this pulsar: its energy loss rate, dipole B-field, and initial period. If a weakly magnetized NS like the other CCO pulsars, it will prove the existence of an important new class of young NSs. We will model the surface temperature and viewing geometry to address the mystery of hot spots on weakly magnetized NSs.

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