SIMBAD references

2005ApJ...635L..65K - Astrophys. J., 635, L65-L68 (2005/December-2)

A coherent timing solution for the nearby isolated neutron star RX J1308.6+2127/RBS 1223.


Abstract (from CDS):

We present a phase-connected timing solution for the nearby isolated neutron star RX J1308.6+2127 (RBS 1223). From dedicated Chandra observations as well as archival Chandra and XMM-Newton data spanning a period of 5 years, we demonstrate that the 10.31 s pulsations are slowing down steadily at a rate of P{dot}=1.120(3)x10–13 s/s. Under the assumption that this is due to magnetic dipole torques, we infer a characteristic age of 1.5 Myr and a magnetic field strength of 3.4x1013 G. As with RX J0720.4-3125, the only other radio-quiet thermally emitting isolated neutron star for which a timing solution has been derived, the field strength is roughly consistent with what was inferred earlier from the presence of a strong absorption feature in its X-ray spectrum. Furthermore, for both sources the characteristic age is in excess of the cooling age inferred from standard cooling models. The sources differ, however, in their timing noise: while RX J0720.4-3125 showed considerable timing noise, RX J1308.6+2127 appears relatively stable.

Abstract Copyright:

Journal keyword(s): Stars: Pulsars: Individual: Alphanumeric: RX J1308.6+2127 - Stars: Neutron - X-Rays: Stars

Simbad objects: 3

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