A simple relation: Neutron star magnetic field strength and spectral shape at low mass accretion rates

Nicolas Zalot, Ekaterina Sokolova-Lapa, Aafia Zainab +8

The X-ray spectra of neutron stars with moderate magnetic fields ($B\sim 10^{12}$ G) in high-mass X-ray binaries (HMXBs) at low X-ray luminosities ($L_{\mathrm{X}}\lesssim 10^{35}$ e…