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| Auteurs principaux: | , , , , , |
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| Format: | Preprint |
| Publié: |
2024
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| Accès en ligne: | https://arxiv.org/abs/2412.00989 |
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| _version_ | 1866929610103455744 |
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| author | Spence, David Bonamente, Massimiliano Ahoranta, Jussi Wijers, Nastasha Tuominen, Toni de Plaa, Jelle |
| author_facet | Spence, David Bonamente, Massimiliano Ahoranta, Jussi Wijers, Nastasha Tuominen, Toni de Plaa, Jelle |
| contents | This paper presents initial results of a systematic search for resonance X-ray absorption lines from H-like O VIII and He-like O VII caused by the intervening warm-hot intergalactic medium (WHIM). The search is based on far ultra-violet redshift priors from O VI and H I broad Lyman-alpha lines that were previously detected by HST and FUSE in a sample of 51 sources with either XMM-Newton or Chandra data, for a total X-ray redshift path of $Δz$ = 10.9. Of the 1,224 absorption-line systems with FUV priors that were analyzed, 33 systems feature an absorption-line feature detected with $\geq$99 % confidence at the same redshift of the FUV prior, some coincident with previously reported absorption line detections. The ultimate goal of this search is to test the hypothesis that X-ray absorbing WHIM gas is the repository of the missing baryons in the local universe. Further results and the cosmological implications of this analysis are presented in a companion paper. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_00989 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | X-ray absorption lines in FUV-detected quasars: I. Sample and analysis of the XMM-Newton and Chandra data Spence, David Bonamente, Massimiliano Ahoranta, Jussi Wijers, Nastasha Tuominen, Toni de Plaa, Jelle Cosmology and Nongalactic Astrophysics This paper presents initial results of a systematic search for resonance X-ray absorption lines from H-like O VIII and He-like O VII caused by the intervening warm-hot intergalactic medium (WHIM). The search is based on far ultra-violet redshift priors from O VI and H I broad Lyman-alpha lines that were previously detected by HST and FUSE in a sample of 51 sources with either XMM-Newton or Chandra data, for a total X-ray redshift path of $Δz$ = 10.9. Of the 1,224 absorption-line systems with FUV priors that were analyzed, 33 systems feature an absorption-line feature detected with $\geq$99 % confidence at the same redshift of the FUV prior, some coincident with previously reported absorption line detections. The ultimate goal of this search is to test the hypothesis that X-ray absorbing WHIM gas is the repository of the missing baryons in the local universe. Further results and the cosmological implications of this analysis are presented in a companion paper. |
| title | X-ray absorption lines in FUV-detected quasars: I. Sample and analysis of the XMM-Newton and Chandra data |
| topic | Cosmology and Nongalactic Astrophysics |
| url | https://arxiv.org/abs/2412.00989 |