Hard X-Ray Flux Upper Limits of Central Compact Objects in Supernova Remnants

Details Hard X-Ray Flux Upper Limits of Central Compact Objects in Supernova Remnants Hard X-Ray Flux Upper Limits of Central Compact Objects in Supernova Remnants

May 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009apj...696.1792e&link_type=abstract

The Astrophysical Journal, Volume 696, Issue 2, pp. 1792-1797 (2009).

Astronomy and Astrophysics

Astronomy

1

Stars: Neutron, Supernova Remnants, X-Rays: Stars

Scientific paper

We searched for hard X-ray (20-300 keV) emission from nine central compact objects (CCOs) 1E 1207.4-5209, 1WGA J1713-3949, J082157.5-430017, J085201.4-461753, J160103.1-513353, J1613483-5055, J181852.0-150213, J185238.6+004020, and J232327.9+584843 with the International Gamma-Ray Astrophysics Laboratory observatory. We applied spectral imaging analysis and did not detect any of the sources with luminosity upper limits in the range of 1033-1034 erg s-1 in the 20-75 keV band. For nearby CCOs (less than 4 kpc), the upper-limit luminosities are an order of magnitude lower than the measured persistent hard X-ray luminosities of anomalous X-ray pulsars. This may indicate that the CCOs are low magnetic field systems with fallback disks around them.

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