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首页> 外文期刊>The Astrophysical journal >PARKES RADIO SEARCHES OF FERMI GAMMA-RAY SOURCES AND MILLISECOND PULSAR DISCOVERIES
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PARKES RADIO SEARCHES OF FERMI GAMMA-RAY SOURCES AND MILLISECOND PULSAR DISCOVERIES

机译:费米伽马射线源和微妙的脉冲星发现的帕克斯无线电搜索

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In a search with the Parkes radio telescope of 56 unidentified Fermi-Large Area Telescope (LAT) gamma-ray sources, we have detected 11 millisecond pulsars (MSPs), 10 of them discoveries, of which five were reported by Kerr et al. We did not detect radio pulsations from six other pulsars now known in these sources. We describe the completed survey, which included multiple observations of many targets conducted to minimize the impact of interstellar scintillation, acceleration effects in binary systems, and eclipses. We consider that 23 of the 39 remaining sources may still be viable pulsar candidates. We present timing solutions and polarimetry for five of the MSPs and gamma-ray pulsations for PSR J1903–7051 (pulsations for five others were reported in the second Fermi-LAT catalog of gamma-ray pulsars). Two of the new MSPs are isolated and five are in day circular orbits with 0.2–0.3 presumed white dwarf companions. PSR J0955–6150, in a 24 day orbit with a companion but eccentricity of 0.11, belongs to a recently identified class of eccentric MSPs. PSR J1036–8317 is in an 8 hr binary with a companion that is probably a white dwarf. PSR J1946–5403 is in a 3 hr orbit with a companion with no evidence of radio eclipses.
机译:在用Parkes射电望远镜搜索56个未识别的费米大面积望远镜(LAT)伽玛射线源的过程中,我们发现了11毫秒脉冲星(MSP),其中10个被发现,其中5个是Kerr等报道的。在这些来源中,我们没有发现来自其他六个脉冲星的无线电脉冲。我们描述了已完成的调查,其中包括对许多目标进行的多次观测,以最大程度地减少星际闪烁的影响,双星系统的加速效应和日食。我们认为,在其余39个来源中,有23个仍可能是可行的脉冲星候选者。我们介绍了五个MSP和PSR J1903–7051的伽马射线脉动的定时解决方案和极化技术(在第二个Fermi-LAT伽马射线脉冲星目录中报告了另外五个的脉动)。新的MSP中有两个是孤立的,五个是在日圆轨道上,假定有0.2-0.3个白矮星伴星。 PSR J0955–6150在24天的轨道中伴随着但偏心率为0.11,属于最近发现的一类偏心MSP。 PSR J1036–8317是8小时的二进制文件,其中的伴侣可能是白矮星。 PSR J1946–5403在3小时的轨道上与伴星一起飞行,没有出现日食的迹象。
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