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We derive the low redshift galaxy stellar mass function (GSMF), inclusive of dust corrections, for the equatorial Galaxy And Mass Assembly (GAMA) dataset covering 180 deg$^2$. We construct the mass function using a density-corrected maximum…

We present results from a systematic investigation of the X-ray properties of a sample of moderate redshift (0.3<z<0.6) galaxy groups. These groups were selected not by traditional X-ray or optical search methods, but rather by an…

We report on a search for new low-surface-brightness galaxies (LSBGs) using Sloan Digital Sky Survey (SDSS) data within the GAMA equatorial fields. The search method consisted of masking objects detected with SDSS photo, combining gri…

We measure seeing-corrected ellipticities for 2 x 10^6 galaxies with magnitude R<23 in 12 widely separated fields totalling 75 deg^2 of sky. At angular scales >30\arcmin, ellipticity correlations are detected at high significance and…

Astrophysics · Physics 2015-06-24 M. Jarvis , G. Bernstein , B. Jain , P. Fischer , D. Smith , J. A. Tyson , D. Wittman

For decades, cosmologists have been using galaxies to trace the large-scale distribution of matter. At present, the largest source of systematic uncertainty in this analysis is the challenge of modeling the complex relationship between…

Cosmology and Nongalactic Astrophysics · Physics 2015-03-19 Chiaki Hikage , Masahiro Takada , David N. Spergel

We present weak-lensing mass measurements of 50 X-ray luminous galaxy clusters at $0.15\le z\le0.3$, based on uniform high quality observations with Suprime-Cam mounted on the 8.2-m Subaru telescope. We pay close attention to possible…

Cosmology and Nongalactic Astrophysics · Physics 2016-08-03 Nobuhiro Okabe , Graham P. Smith

We present predictions for the galaxy-galaxy lensing profile from the EAGLE hydrodynamical cosmological simulation at redshift z=0.18, in the spatial range 0.02 < R/(Mpc/h) < 2, and for five logarithmically equi-spaced stellar mass bins in…

We combine the measurements of luminosity dependence of bias with the luminosity dependent weak lensing analysis of dark matter around galaxies to derive the galaxy bias and constrain nonlinear mass and cosmological parameters. We take…

We cross-correlate the 100 um Improved Reprocessing of the IRAS Survey (IRIS) map and galaxy clusters at 0.1 < z < 0.3 in the maxBCG catalogue taken from the Sloan Digital Sky Survey, measuring an angular cross-power spectrum over multipole…

Cosmology and Nongalactic Astrophysics · Physics 2013-05-08 Adam D. Hincks , Amir Hajian , Graeme E. Addison

We present cosmological results from a combined analysis of galaxy clustering and weak gravitational lensing, using 1321 deg$^2$ of $griz$ imaging data from the first year of the Dark Energy Survey (DES Y1). We combine three two-point…

Cosmology and Nongalactic Astrophysics · Physics 2019-03-04 DES Collaboration , T. M. C. Abbott , F. B. Abdalla , A. Alarcon , J. Aleksić , S. Allam , S. Allen , A. Amara , J. Annis , J. Asorey , S. Avila , D. Bacon , E. Balbinot , M. Banerji , N. Banik , W. Barkhouse , M. Baumer , E. Baxter , K. Bechtol , M. R. Becker , A. Benoit-Lévy , B. A. Benson , G. M. Bernstein , E. Bertin , J. Blazek , S. L. Bridle , D. Brooks , D. Brout , E. Buckley-Geer , D. L. Burke , M. T. Busha , D. Capozzi , A. Carnero Rosell , M. Carrasco Kind , J. Carretero , F. J. Castander , R. Cawthon , C. Chang , N. Chen , M. Childress , A. Choi , C. Conselice , R. Crittenden , M. Crocce , C. E. Cunha , C. B. D'Andrea , L. N. da Costa , R. Das , T. M. Davis , C. Davis , J. De Vicente , D. L. DePoy , J. DeRose , S. Desai , H. T. Diehl , J. P. Dietrich , S. Dodelson , P. Doel , A. Drlica-Wagner , T. F. Eifler , A. E. Elliott , F. Elsner , J. Elvin-Poole , J. Estrada , A. E. Evrard , Y. Fang , E. Fernandez , A. Ferté , D. A. Finley , B. Flaugher , P. Fosalba , O. Friedrich , J. Frieman , J. García-Bellido , M. Garcia-Fernandez , M. Gatti , E. Gaztanaga , D. W. Gerdes , T. Giannantonio , M. S. S. Gill , K. Glazebrook , D. A. Goldstein , D. Gruen , R. A. Gruendl , J. Gschwend , G. Gutierrez , S. Hamilton , W. G. Hartley , S. R. Hinton , K. Honscheid , B. Hoyle , D. Huterer , B. Jain , D. J. James , M. Jarvis , T. Jeltema , M. D. Johnson , M. W. G. Johnson , T. Kacprzak , S. Kent , A. G. Kim , A. King , D. Kirk , N. Kokron , A. Kovacs , E. Krause , C. Krawiec , A. Kremin , K. Kuehn , S. Kuhlmann , N. Kuropatkin , F. Lacasa , O. Lahav , T. S. Li , A. R. Liddle , C. Lidman , M. Lima , H. Lin , N. MacCrann , M. A. G. Maia , M. Makler , M. Manera , M. March , J. L. Marshall , P. Martini , R. G. McMahon , P. Melchior , F. Menanteau , R. Miquel , V. Miranda , D. Mudd , J. Muir , A. Möller , E. Neilsen , R. C. Nichol , B. Nord , P. Nugent , R. L. C. Ogando , A. Palmese , J. Peacock , H. V. Peiris , J. Peoples , W. J. Percival , D. Petravick , A. A. Plazas , A. Porredon , J. Prat , A. Pujol , M. M. Rau , A. Refregier , P. M. Ricker , N. Roe , R. P. Rollins , A. K. Romer , A. Roodman , R. Rosenfeld , A. J. Ross , E. Rozo , E. S. Rykoff , M. Sako , A. I. Salvador , S. Samuroff , C. Sánchez , E. Sanchez , B. Santiago , V. Scarpine , R. Schindler , D. Scolnic , L. F. Secco , S. Serrano , I. Sevilla-Noarbe , E. Sheldon , R. C. Smith , M. Smith , J. Smith , M. Soares-Santos , F. Sobreira , E. Suchyta , G. Tarle , D. Thomas , M. A. Troxel , D. L. Tucker , B. E. Tucker , S. A. Uddin , T. N. Varga , P. Vielzeuf , V. Vikram , A. K. Vivas , A. R. Walker , M. Wang , R. H. Wechsler , J. Weller , W. Wester , R. C. Wolf , B. Yanny , F. Yuan , A. Zenteno , B. Zhang , Y. Zhang , J. Zuntz

We present weak lensing results for 12 distant clusters determined from images obtained with the refurbished HST. We detect the signature of gravitational lensing in 11 of the 12 clusters; the clusters span nearly an order of magnitude in…

We use the two-point correlation function to calculate the clustering properties of the recently completed SSRS2 survey. The redshift space correlation function for the magnitude-limited SSRS2 is given by xi(s)=(s/5.85 h-1 Mpc)^{-1.60} for…

Astrophysics · Physics 2010-05-25 C. N. A. Willmer , L. Nicolaci da Costa , P. S. Pellegrini

Weak lensing by large-scale structure allows a direct measure of the dark matter distribution. We have used parallel images taken with the Space Telescope Imaging Spectrograph (STIS) on the Hubble Space Telescope to measure weak lensing, or…

We report on the first measurement of the average mass and mass-to-light ratio of galaxy groups by analysing the weak lensing signal induced by these systems. The groups, which have velocity dispersions of 50-400 km/s, have been selected…

We compute the two-point image correlation function for bright galaxies in the seventh data release of the Sloan Digital Sky Survey (SDSS) over angular scales 0.01' <= \theta <= 120' and projected separations 0.01 Mpc <= r <= 10 Mpc. We…

Cosmology and Nongalactic Astrophysics · Physics 2009-04-22 Tereasa G. Brainerd , Ingolfur Agustsson , Chad A. Madsen , Jeffrey A. Edmonds

We study the shapes of galaxy dark matter haloes by measuring the anisotropy of the weak gravitational lensing signal around galaxies in the second Red-sequence Cluster Survey (RCS2). We determine the average shear anisotropy within the…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Edo van Uitert , Henk Hoekstra , Tim Schrabback , David G. Gilbank , Michael D. Gladders , H. K. C. Yee

We measure the two-point correlation function xi(r) using a sample of 2219 galaxies in an area of 0.32 degrees^2 at z=0.7-1.35 from the first season of the DEEP2 Galaxy Redshift Survey. We find that xi(r) can be approximated by a power-law,…

abridged: We use a complete sample of about 140,000 galaxies from the Sloan Digital Sky Survey (SDSS) to study the size distribution of galaxies and its dependence on their luminosity, stellar mass, and morphological type. The large SDSS…