Probing the physical properties of the intergalactic medium using blazars
Monthly Notices of the Royal Astronomical Society(2021)
摘要
We use Swift blazar spectra to estimate the key intergalactic medium (IGM) properties of hydrogen column density ($\mathit {N}\small {\rm HXIGM}$), metallicity, and temperature over a redshift range of 0.03 ≤ z ≤ 4.7, using a collisional ionization equilibrium model for the ionized plasma. We adopted a conservative approach to the blazar continuum model given its intrinsic variability a...
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关键词
(stars:) gamma-ray burst: general,galaxies: active,(galaxies:) BL Lacertae objects: general,galaxies: high-redshift,(galaxies:) intergalactic medium,X-rays: general
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