A hydrogenic molecular atmosphere of a neutron star

Abstract

A model of a hydrogenic content of atmosphere of the isolated neutron star 1E1207.4-5209 is proposed. It is based on the assumption that the main component in the atmosphere is the exotic molecular ion $H_3^{2+}$ and that there exists a magnetic field in the range of $(4\pm 2)\times 10^{14}$ G. Photoionization $H_3^{2+} \rar e + 3p$ and photodissociation $H_3^{2+} \rar H + 2p$ correspond to two absorption features at 0.7 KeV and 1.4 KeV, respectively, discovered by {\it Chandra} observatory (Sanwal et al, 2002). The model predicts one more absorption feature at 80-150 eV corresponding to photodissociation $H_3^{2+} \rar H_2^+ + p$.

arXiv comment8 pages, 1 figure

References in corpus (4)

• Matter in Strong Magnetic Fields
• Discovery of absorption features in the X-ray spectrum of an isolated neutron star
• Equation of state and opacities for hydrogen atmospheres of magnetars
• Hydrogen atom in a magnetic field: The quadrupole moment

Cited by in corpus (8)

• Modelling mid-Z element atmospheres for strongly-magnetized neutron stars
• Ultraviolet, X-ray, and Optical Radiation from the Geminga Pulsar
• Detailed atmosphere modelling for the neutron star 1E1207.4-5209: Evidence of Oxygen/Neon atmosphere
• Once-ionized helium in superstrong magnetic fields
• The $H_3^{+}$ molecular ion in a magnetic field in linear parallel configuration
• The exotic $H_3^{2+}$ ion in a strong magnetic field. Linear configuration
• One-electron atomic-molecular ions containing Lithium in a strong magnetic field
• Finite Hydrogenic molecular chain H${}_3$ and ion H${}_2^{-}$ exist in a strong magnetic field