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A sample of nearly 9000 early-type galaxies, in the redshift range 0.01<z<0.3, was selected from the Sloan Digital Sky Survey using morphological and spectral criteria. The sample was used to study how early-type galaxy observables,…

Evolution in the mass function of galaxy clusters sensitively traces both the expansion history of the Universe and cosmological structure formation. Robust cluster mass determinations are a key ingredient for a reliable measurement of this…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 Holger Israel , Thomas Erben , Thomas H. Reiprich , Alexey Vikhlinin , Craig L. Sarazin , Peter Schneider

The color - stellar mass-to-light ratio relation (CMLR) is a widely accepted tool to estimate the stellar mass (M*) of a galaxy. However, an individual CMLR tends to give distinct M* for a same galaxy when it is applied in different bands.…

Astrophysics of Galaxies · Physics 2020-07-22 Wei Du , Stacy S. McGaugh

We present measurements of the angular correlation function of galaxies selected from a B_J=23.5 multicolour survey of two 5 degree by 5 degree fields located at high galactic latitudes. The galaxy catalogue of approximately 400,000…

Astrophysics · Physics 2009-10-31 M. J. I. Brown , R. L. Webster , B. J. Boyle

The power spectrum of weak lensing shear caused by large-scale structure is an emerging tool for precision cosmology, in particular for measuring the effects of dark energy on the growth of structure at low redshift. One potential source of…

We measure the gravitational lensing shear signal around dark matter halos hosting CMASS galaxies using light sources at $z\sim 1$ (background galaxies) and at the surface of last scattering at $z\sim 1100$ (the cosmic microwave…

Cosmology and Nongalactic Astrophysics · Physics 2017-04-26 Hironao Miyatake , Mathew S. Madhavacheril , Neelima Sehgal , Anže Slosar , David N. Spergel , Blake Sherwin , Alexander van Engelen

We present results for a galaxy-galaxy lensing study based on imaging data from the Canada-France-Hawaii Telescope Legacy Survey Wide. From a 12 million object multi-colour catalogue for 124 deg^2 of photometric data in the u*g'r'i'z'…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 F. Brimioulle , S. Seitz , M. Lerchster , R. Bender , J. Snigula

We characterize galaxy correlations in the Sloan Digital Sky Survey by measuring several moments of galaxy counts in spheres. We firstly find that the average counts grows as a power-law function of the distance with an exponent D= 2.1+-…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Francesco Sylos Labini

We determine the low-redshift field galaxy stellar mass function (GSMF) using an area of 143 deg^2 from the first three years of the Galaxy And Mass Assembly (GAMA) survey. The magnitude limits of this redshift survey are r < 19.4 mag over…

We present measurements of the redshift-space luminosity-weighted or `marked' correlation function in the SDSS. These are compared with a model in which the luminosity function and luminosity dependence of clustering are the same as that…

Astrophysics · Physics 2009-11-11 Ramin Skibba , Ravi K. Sheth , Andrew J. Connolly , Ryan Scranton

Magnification changes the observed number counts of galaxies on the sky. This biases the observed tangential shear profiles around galaxies, the so-called galaxy-galaxy lensing (GGL) signal, and the related excess mass profile.…

Cosmology and Nongalactic Astrophysics · Physics 2021-12-07 Sandra Unruh , Peter Schneider , Stefan Hilbert , Patrick Simon , Sandra Martin , Jorge Corella Puertas

We compare predictions for galaxy-galaxy lensing profiles and clustering from the Henriques et al. (2015) public version of the Munich semi-analytical model of galaxy formation (SAM) and the IllustrisTNG suite, primarily TNG300, with…

Cosmology and Nongalactic Astrophysics · Physics 2020-12-03 Malin Renneby , Bruno M. B. Henriques , Stefan Hilbert , Dylan Nelson , Mark Vogelsberger , Raúl E. Angulo , Volker Springel , Lars Hernquist

We present a new method to measure the redshift-dependent galaxy bias by combining information from the galaxy density field and the weak lensing field. This method is based on Amara et al. (2012), where they use the galaxy density field to…

The unknown nature of dark energy motivates continued cosmological tests of large-scale gravitational physics. We present a new consistency check based on the relative amplitude of non-relativistic galaxy peculiar motions, measured via…

In this work, we adopt a cosmological model-independent approach for the first time to test the question of whether the mass density power-law index($\gamma$) of the strong gravitational lensing system(SGLS) evolves with redshift, and the…

Cosmology and Nongalactic Astrophysics · Physics 2023-05-08 Jian Hu

We report weak-lensing masses for 51 of the most X-ray luminous galaxy clusters known. This cluster sample, introduced earlier in this series of papers, spans redshifts 0.15 < z_cl < 0.7, and is well suited to calibrate mass proxies for…

We present a non-parametric, empirically based, model for associating galaxy luminosities with halo/subhalo masses, based on a self-consistent treatment of subhalo mass loss and the subhalo mass function. We find that, at high mass, the…

Astrophysics · Physics 2009-11-11 A. Vale , J. P. Ostriker

Scaling properties of galaxy cluster observables with mass provide central insights into the processes shaping clusters. Calibrating proxies for cluster mass will be crucial to cluster cosmology with upcoming surveys like eROSITA and…

Cosmology and Nongalactic Astrophysics · Physics 2014-05-08 Holger Israel , Thomas H. Reiprich , Thomas Erben , Richard J. Massey , Craig L. Sarazin , Peter Schneider , Alexey Vikhlinin

We present an analysis of the evolution of the central mass-density profile of massive elliptical galaxies from the SLACS and BELLS strong gravitational lens samples over the redshift interval z ~ 0.1-0.6, based on the combination of…

Galaxy-galaxy lensing (GGL) measures the 2-point cross-correlation between galaxies and mass in the Universe. In this work we seek to generalise this effect by considering the third-order correlations between galaxies and mass:…

Astrophysics · Physics 2009-11-10 Peter Schneider , Peter Watts