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Hard X-Ray flux upper limits of central compact objects in supernova remnants

Erdeve, Işıl and Kalemci, Emrah and Alpar, M. Ali (2009) Hard X-Ray flux upper limits of central compact objects in supernova remnants. The Astrophysical Journal, 696 (2). pp. 1792-1797. ISSN 0004-637X

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Official URL: http://dx.doi.org/10.1088/0004-637X/696/2/1792

Abstract

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, J1601−5133, J1613483−5055, J181852.0−150213, J185238.6+004020, and J232327.9+584843 with the INTEGRAL observatory. We applied spectral imaging analysis and did not detect any of the sources with luminosity upper limits in the range of 1033-1034 ergs/s in the 20-75 keV band. For nearby CCOs (< 4 kpc) the upper limit luminosities are an order of magnitude lower than the measured persistent hard X-ray luminosities of AXPs. This may indicate that the central compact objects are low magnetic field systems with fallback disks around them.

Item Type:Article
Uncontrolled Keywords:stars: neutron; supernova remnants; X-rays: stars
Subjects:Q Science > QB Astronomy > QB460-466 Astrophysics
Q Science > QC Physics > QC1 General
ID Code:11880
Deposited By:Emrah Kalemci
Deposited On:08 Sep 2009 09:55
Last Modified:25 May 2011 14:12

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