# Gravitational lensing effects on the baryonic acoustic oscillation signature in the redshift-space correlation function

@article{Yoo2010GravitationalLE, title={Gravitational lensing effects on the baryonic acoustic oscillation signature in the redshift-space correlation function}, author={Jaiyul Yoo and Jordi Miralda-Escude Yale University and Institut de Ciencies de l'Espai and IEEC-CSIC and Institucio' Catalana de Recerca i Estudis Avancats}, journal={Physical Review D}, year={2010}, volume={82}, pages={043527} }

Measurements of the baryonic acoustic oscillation (BAO) peak in the redshift-space correlation function yield the angular diameter distance ${D}_{A}(z)$ and the Hubble parameter $H(z)$ as a function of redshift, constraining the properties of dark energy and space curvature. We discuss the perturbations introduced in the galaxy correlation function by gravitational lensing through the effect of magnification bias and its cross correlation with the galaxy density. At the BAO scale, gravitational…

## 7 Citations

Probing cosmic velocity–density correlations with galaxy luminosity modulations

- PhysicsMonthly Notices of the Royal Astronomical Society: Letters
- 2018

We study the possibility of using correlations between spatial modulations in the observed luminosity distribution of galaxies and the underlying density field as a cosmological probe. Considering…

Supersonic Relative Velocity Effect on the Baryonic Acoustic Oscillation Measurements

- Physics
- 2011

We investigate the effect of supersonic relative velocities between baryons and dark matter, recently shown to arise generically at high redshift, on baryonic acoustic oscillation (BAO) measurements…

Galaxy two-point correlation function in general relativity

- PhysicsJournal of Cosmology and Astroparticle Physics
- 2018

We perform theoretical and numerical studies of the full relativistic two-point galaxy correlation function, considering the linear-order scalar and tensor perturbation contributions and the…

Nonlinear relativistic corrections to cosmological distances, redshift and gravitational lensing magnification: II. Derivation

- Physics
- 2014

The next generation of telescopes will usher in an era of precision cosmology, capable of determining the cosmological model to beyond the percent level. For this to be effective, the theoretical…

Lensing and time-delay contributions to galaxy correlations

- Physics
- 2013

Galaxy clustering on very large scales can be probed via the 2-point correlation function in the general case of wide and deep separations, including all the lightcone and relativistic effects. Using…

Comment on the claimed radial BAO detection by Gaztanaga et al

- Physics
- 2009

Gaztanaga et al. have recently claimed to measure the Baryon Acoustic Oscillation (BAO) scale in the radial direction from the publicly available SDSS DR6 data. They focus on the correlation function…

## References

SHOWING 1-10 OF 62 REFERENCES

Cosmological Parameters from Angular Correlations between Qsos and Galaxies

- Physics
- 1994

The angular two-point correlation function between background QSOs and foreground galaxies induced by gravitational lensing is derived. It is shown that the shape of this correlation function depends…

The Gravitational Lensing in Redshift-Space Correlation Functions of Galaxies and Quasars

- Physics
- 2000

Gravitational lensing, as well as the velocity field and the cosmological light cone warp, changes the observed correlation function of high-redshift objects. We present an analytical expression of…

Probing Dark Energy with Baryonic Acoustic Oscillations from Future Large Galaxy Redshift Surveys

- Physics
- 2003

We show that the measurement of the baryonic acoustic oscillations in large high-redshift galaxy surveys offers a precision route to the measurement of dark energy. The cosmic microwave background…

From Galaxy-Galaxy Lensing to Cosmological Parameters

- Physics
- 2006

Galaxy-galaxy lensing uses the weak distortion of background sources to measure the mean excess surface density profile, ΔΣ(r), around a sample of foreground lensing galaxies. We develop a method for…

LARGE-SCALE ANISOTROPIC CORRELATION FUNCTION OF SDSS LUMINOUS RED GALAXIES

- Physics
- 2008

We study the large-scale anisotropic two-point correlation function using 46,760 luminous red galaxies at redshifts 0.16-0.47 from the Sloan Digital Sky Survey. We measure the correlation function as…

The Galaxy-Mass Correlation Function Measured from Weak Lensing in the Sloan Digital Sky Survey

- Physics
- 2003

We present galaxy-galaxy lensing measurements over scales 0.025 to 10 h-1 Mpc in the Sloan Digital Sky Survey (SDSS). Using a flux-limited sample of 127,001 lens galaxies with spectroscopic redshifts…

Complete Treatment of Galaxy Two-Point Statistics: Gravitational Lensing Effects and Redshift-Space Distortions

- Physics
- 2009

We present a coherent theoretical framework for computing gravitational lensing effects and redshift-space distortions in an inhomogeneous universe and investigate their impacts on galaxy two-point…

Measuring the Matter Density Using Baryon Oscillations in the SDSS

- Physics
- 2007

We measure the cosmological matter density by observing the positions of baryon acoustic oscillations in the clustering of galaxies in the Sloan Digital Sky Survey (SDSS). We jointly analyze the main…

Weak gravitational lensing of distant galaxies

- Physics
- 1992

We analyze the two-point statistics of the gravitationally induced ellipticities of distant images whick provide a direct probe of the mass fluctuation spectrum P(k). The analysis extends previous…

Anisotropic magnification distortion of the 3D galaxy correlation. I. Real space

- Physics
- 2007

It has long been known that gravitational lensing, primarily via magnification bias, modifies the observed galaxy (or quasar) clustering. Such discussions have largely focused on the 2D angular…