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Bias of damped Lyman-α systems from their cross-correlation with CMB lensing

Abstract:

We cross-correlate the positions of damped Lyman-α systems (DLAs) and their parent quasar catalog with a convergence map derived from the Planck cosmic microwave background (CMB) temperature data. We make consistent measurements of the lensing signal of both samples in both Fourier and configuration space. By interpreting the excess signal present in the DLA catalog with respect to the parent quasar catalog as caused by the large scale structure traced by DLAs, we are able to infer the bias o...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Accepted Manuscript

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Publisher copy:
10.1088/1475-7516/2018/04/053

Authors


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Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics; Astrophysics
Colosimo, J More by this author
Font-Ribera, A More by this author
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Funding agency for:
Alonso, D
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Funding agency for:
Alonso, D
UCL Cosmoparticle Initiative More from this funder
Publisher:
IOP Publishing Publisher's website
Journal:
Journal of Cosmology and Astroparticle Physics Journal website
Volume:
2018
Issue:
April 2018
Pages:
Article: 053
Publication date:
2018-04-20
Acceptance date:
2018-04-10
DOI:
ISSN:
1475-7516
Pubs id:
pubs:847164
URN:
uri:c2edf2ee-44bf-4ee4-aa09-fa6a4c863b32
UUID:
uuid:c2edf2ee-44bf-4ee4-aa09-fa6a4c863b32
Local pid:
pubs:847164

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