CONFIRMATION OF X-RAY ABSORPTION BY WARM-HOT INTERGALACTIC MEDIUM IN THE SCULPTOR WALL

@article{Fang2010CONFIRMATIONOX,
  title={CONFIRMATION OF X-RAY ABSORPTION BY WARM-HOT INTERGALACTIC MEDIUM IN THE SCULPTOR WALL},
  author={Taotao Fang and David A. Buote and Philip J. Humphrey and Claude R. Canizares and Luca Zappacosta and Roberto Maiolino and Gianpiero Tagliaferri and Fabio Gastaldello},
  journal={The Astrophysical Journal},
  year={2010},
  volume={714},
  pages={1715 - 1724}
}
In a previous paper, we reported a 3σ detection of an absorption line from the warm-hot intergalactic medium (WHIM) using the Chandra and XMM X-ray grating spectra of the blazar H2356-309, the sight line of which intercepts the Sculptor Wall, a large-scale superstructure of galaxies at z ∼ 0.03. To verify our initial detection, we obtained a deep (500 ks), follow-up exposure of H2356-309 as part of the Cycle-10 Chandra Large Project Program. From a joint analysis of the Cycle-10 and previous… 

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