Testing redMaPPer centring probabilities using galaxy clustering and galaxy–galaxy lensing

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Lensing Probabilities for Spectroscopically Selected Galaxy-galaxy Strong Lenses

Spectroscopic galaxy-galaxy lens searches are presently the most prolific method of identifying strong lens systems in large data sets. We study the probabilities associated with these lens searches, namely the probability of identifying a candidate with rogue [O II] emission lines in a galaxy’s spectrum, and the probability that the candidate will show features of strong lensing in follow-up p...

متن کامل

Cosmological parameter constraints from galaxy-galaxy lensing and galaxy clustering with the SDSS DR7

Recent studies have shown that the cross-correlation coefficient between galaxies and dark matter is very close to unity on scales outside a few virial radii of galaxy haloes, independent of the details of how galaxies populate dark matter haloes. This finding makes it possible to determine the dark matter clustering from measurements of galaxy–galaxy weak lensing and galaxy clustering. We pres...

متن کامل

Testing a New Analytic Model for Gravitational Lensing Probabilities

We study gravitational lensing with a multiple lens plane approach, proposing a simple analytical model for the probability distribution function (PDF) of the dark matter convergence, κ, for the different lens planes in a given cosmology as a function of redshift and smoothing angle, θ. The model is fixed solely by the variance of κ, which in turn is fixed by the amplitude of the power spectrum...

متن کامل

Halo masses for optically-selected and for radio-loud AGN from clustering and galaxy-galaxy lensing

We compute two-point correlation functions and measure the shear signal due to galaxy-galaxy lensing for 80 000 optically identified and 5 700 radio-loud AGN from Data Release 4 (DR4) of the Sloan Digital Sky Survey. Halo occupation models are used to estimate halo masses and satellite fractions for these two types of AGN. The large sample size allows us to separate AGN according to the stellar...

متن کامل

Quantifying Substructure Using Galaxy-Galaxy Lensing in Distant Clusters

We present high-resolution mass reconstructions for five massive cluster-lenses spanning a redshift range from z = 0.18–0.57 utilizing archival Hubble Space Telescope (HST) data and applying galaxy-galaxy lensing techniques. These detailed mass models were obtained by combining constraints from the observed strong and weak lensing regimes. Quantifying the local weak distortions in the shear map...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Monthly Notices of the Royal Astronomical Society

سال: 2018

ISSN: 0035-8711,1365-2966

DOI: 10.1093/mnras/sty2013