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Intrinsic alignments of galaxies in the Horizon-AGN cosmological hydrodynamical simulation

Abstract:

The intrinsic alignments of galaxies are recognised as a contaminant to weak gravitational lensing measurements. In this work, we study the alignment of galaxy shapes and spins at low redshift ($z\sim 0.5$) in Horizon-AGN, an adaptive-mesh-refinement hydrodynamical cosmological simulation box of 100 Mpc/h a side with AGN feedback implementation. We find that spheroidal galaxies in the simulation show a tendency to be aligned radially towards over-densities in the dark matter density field and...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Publisher's version

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Publisher copy:
10.1093/mnras/stv2154

Authors


Chisari, NE More by this author
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Publisher:
Oxford University Press Publisher's website
Journal:
Monthly Notices of the Royal Astronomical Society Journal website
Volume:
454
Issue:
3
Pages:
2736-2753
Publication date:
2015-10-14
Acceptance date:
2015-09-15
DOI:
EISSN:
1365-2966
ISSN:
0035-8711
URN:
uuid:90464734-778f-49f5-a146-c9974dba9aff
Source identifiers:
535319
Local pid:
pubs:535319
Keywords:

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