Opt/NIR obs. of 1FGLJ1417.7-4407 neutron star bin.
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The Fermi {gamma}-ray source 1FGL J1417.7-4407 (J1417) is a compact X-ray binary with a neutron star primary and a red giant companion in a ~5.4 days orbit. This initial...
费米伽马射线源(Fermi gamma-ray source)1FGL J1417.7-4407(简称J1417)是一颗致密X射线双星(compact X-ray binary),其主星为中子星(neutron star),伴星为红巨星(red giant),轨道周期约为5.4天。此初始……



