10-1093-mnras-stv1602.pdf (3.1 MB)
The anisotropic line correlation function as a probe of anisotropies in galaxy surveys
journal contribution
posted on 2023-06-09, 02:24 authored by A Eggemeier, T Battefeld, Robert E SmithRobert E Smith, J NiemeyerWe propose an anisotropic generalization of the line correlation function (ALCF) to separate and quantify phase information in the large-scale structure of galaxies. The line correlation function probes the strictly non-linear regime of structure formation and since phase information drops out of the power spectrum, the line correlation function provides a complementary tool to commonly used techniques based on two-point statistics. Furthermore, it is independent of linear bias as well as the Gaussian variance on the modulus of the density field and thus may also prove to be advantageous compared to the bispectrum or similar higher order statistics for certain cases. For future applications, it is vital, though, to be able to account for observational effects that cause anisotropies in the distribution of galaxies. Based on a number of numerical studies, we find that our ALCF is well suited to accomplish this task and we demonstrate how the Alcock-Paczynski effect and kinematical redshift-space distortions can in principle be measured via the ALCF.
Funding
TB002-46; Dept P&A
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Publication status
- Published
File Version
- Published version
Journal
Monthly Notices of the Royal Astronomical SocietyISSN
0035-8711Publisher
Oxford University PressExternal DOI
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1Volume
453Page range
797-809Department affiliated with
- Physics and Astronomy Publications
Research groups affiliated with
- Astronomy Centre Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2016-08-05First Open Access (FOA) Date
2016-08-05First Compliant Deposit (FCD) Date
2016-08-05Usage metrics
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