Constraining the Spin-Down of the Nearby Isolated Neutron Star RX J2143.0+0654

Astronomy and Astrophysics – Astronomy

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

17

Stars: Individual: Rx J2143.0+0654, Stars: Neutron, X-Rays: Stars

Scientific paper

Magnetic field estimates for nearby isolated neutron stars (INS) help to constrain both the characteristics of the population and the nature of their peculiar X-ray spectra. From a series of XMM -Newton observations of RX J2143.0+0654, we measure a spin-down rate of \dot{ν}= {(-4.6± 2.0) × 10^{-16}} Hz s^{-1}. While this does not allow a definitive measurement of the dipole magnetic field strength, fields of gsim1014 G such as those inferred from the presence of a spectral absorption feature at 0.75 keV are excluded. Instead, the field is most likely around 2 × 1013 G, very similar to those of other INS. We not only suggest that this similarity most likely reflects the influence of magnetic field decay on this population, but also discuss a more speculative possibility that it results from peculiar conditions on the neutron-star surface. We find no evidence for spectral variability above the ~2% level. We confirm the presence of the 0.75 keV feature found earlier, and find tentative evidence for an additional absorption feature at 0.4 keV.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Constraining the Spin-Down of the Nearby Isolated Neutron Star RX J2143.0+0654 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Constraining the Spin-Down of the Nearby Isolated Neutron Star RX J2143.0+0654, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Constraining the Spin-Down of the Nearby Isolated Neutron Star RX J2143.0+0654 will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-836963

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.