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The structure of the ISM in the Zone of Avoidance by high-resolution multi-wavelength observations

  • L. V. Tóth (a1) (a2), Y. Doi (a3), S. Pinter (a1), T. Kovács (a1), S. Zahorecz (a4) (a5), Z. Bagoly (a1), L. G. Balázs (a1) (a2), I. Horvath (a6), I. I. Racz (a1) (a2) and T. Onishi (a4)...


We estimate the column density of the Galactic foreground interstellar medium (GFISM) in the direction of extragalactic sources. All-sky AKARI FIS infrared sky survey data might be used to trace the GFISM with a resolution of 2 arcminutes. The AKARI based GFISM hydrogen column density estimates are compared with similar quantities based on HI 21cm measurements of various resolution and of Planck results. High spatial resolution observations of the GFISM may be important recalculating the physical parameters of gamma-ray burst (GRB) host galaxies using the updated foreground parameters.



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