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Improving the accuracy of photometric redshifts (photo-$z$) is essential for reliable statistical studies of cosmology and galaxy evolution. However, missing photometric bands are a common observational challenge that can significantly…

As the statistical power of galaxy weak lensing reaches percent level precision, large, realistic and robust simulations are required to calibrate observational systematics, especially given the increased importance of object blending as…

With planned space-based and 3rd generation ground-based gravitational wave detectors (LISA, Einstein Telescope, Cosmic Explorer), and proposed DeciHz detectors (DECIGO, Big Bang Observer), it is timely to explore statistical cosmological…

Cosmology and Nongalactic Astrophysics · Physics 2024-05-24 Charlie T. Mpetha , Giuseppe Congedo , Andy Taylor

We evaluate the consistency between lensing and clustering probes of large-scale structure based on measurements of projected galaxy clustering from BOSS combined with overlapping galaxy-galaxy lensing from three surveys: DES Y3, HSC Y1,…

Cosmology and Nongalactic Astrophysics · Physics 2022-10-26 A. Amon , N. C. Robertson , H. Miyatake , C. Heymans , M. White , J. DeRose , S. Yuan , R. H. Wechsler , T. N. Varga , S. Bocquet , A. Dvornik , S. More , A. J. Ross , H. Hoekstra , A. Alarcon , M. Asgari , J. Blazek , A. Campos , R. Chen , A. Choi , M. Crocce , H. T. Diehl , C. Doux , K. Eckert , J. Elvin-Poole , S. Everett , A. Ferté , M. Gatti , G. Giannini , D. Gruen , R. A. Gruendl , W. G. Hartley , K. Herner , H. Hildebrandt , S. Huang , E. M. Huff , B. Joachimi , S. Lee , N. MacCrann , J. Myles , A. Navarro- Alsina , T. Nishimichi , J. Prat , L. F. Secco , I. Sevilla-Noarbe , E. Sheldon , T. Shin , T. Trster , M. A. Troxel , I. Tutusaus , A. H. Wright , B. Yin , M. Aguena , S. Allam , J. Annis , D. Bacon , M. Bilicki , D. Brooks , D. L. Burke , A. Carnero Rosell , J. Carretero , F. J. Castander , R. Cawthon , M. Costanzi , L. N. da Costa , M. E. S. Pereira , J. de Jong , J. De Vicente , S. Desai , J. P. Dietrich , P. Doel , I. Ferrero , J. Frieman , J. García-Bellido , D. W. Gerdes , J. Gschwend , G. Gutierrez , S. R. Hinton , D. L. Hollowood , K. Honscheid , D. Huterer , A. Kannawadi , K. Kuehn , N. Kuropatkin , O. Lahav , M. Lima , M. A. G. Maia , J. L. Marshall , F. Menanteau , R. Miquel , J. J. Mohr , R. Morgan , J. Muir , F. Paz-Chinchon , A. Pieres , A. A. Plazas Malagón , A. Porredon , M. Rodriguez-Monroy , A. Roodman , E. Sanchez , S. Serrano , H. Shan , E. Suchyta , M. E. C. Swanson , G. Tarle , D. Thomas , C. To , Y. Zhang

Accurate weak-lensing analysis requires not only accurate measurement of galaxy shapes but also precise and unbiased measurement of galaxy redshifts. The photometric redshift technique appears as the only possibility to determine the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 S. Jouvel , J-P. Kneib , G. Bernstein , O. Ilbert , P. Jelinsky , B. Milliard , A. Ealet , C. Schimd , T. Dahlen , S. Arnouts

We introduce redMaGiC, an automated algorithm for selecting Luminous Red Galaxies (LRGs). The algorithm was specifically developed to minimize photometric redshift uncertainties in photometric large-scale structure studies. redMaGiC…

Photometric redshifts are essential in studies of both galaxy evolution and cosmology, as they enable analyses of objects too numerous or faint for spectroscopy. The Rubin Observatory, Euclid, and Roman Space Telescope will soon provide a…

Cosmology and Nongalactic Astrophysics · Physics 2022-10-28 Jeffrey A. Newman , Daniel Gruen

We measure the clustering of DES Year 1 galaxies that are intended to be combined with weak lensing samples in order to produce precise cosmological constraints from the joint analysis of large-scale structure and lensing correlations.…

Cosmology and Nongalactic Astrophysics · Physics 2018-09-12 J. Elvin-Poole , M. Crocce , A. J. Ross , T. Giannantonio , E. Rozo , E. S. Rykoff , S. Avila , N. Banik , J. Blazek , S. L. Bridle , R. Cawthon , A. Drlica-Wagner , O. Friedrich , N. Kokron , E. Krause , N. MacCrann , J. Prat , C. Sanchez , L. F. Secco , I. Sevilla-Noarbe , M. A. Troxel , T. M. C. Abbott , F. B. Abdalla , S. Allam , J. Annis , J. Asorey , K. Bechtol , M. R. Becker , A. Benoit-Levy , G. M. Bernstein , E. Bertin , D. Brooks , E. Buckley-Geer , D. L. Burke , A. Carnero Rosell , D. Carollo , M. Carrasco Kind , J. Carretero , F. J. Castander , C. E. Cunha , C. B. DAndrea , L. N. da Costa , T. M. Davis , C. Davis , S. Desai , H. T. Diehl , J. P. Dietrich , S. Dodelson , P. Doel , T. F. Eifler , A. E. Evrard , E. Fernandez , B. Flaugher , P. Fosalba , J. Frieman , J. Garcia-Bellido , E. Gaztanaga , D. W. Gerdes , K. Glazebrook , D. Gruen , R. A. Gruendl , J. Gschwend , G. Gutierrez , W. G. Hartley , S. R. Hinton , K. Honscheid , J. K. Hoormann , B. Jain , D. J. James , M. Jarvis , T. Jeltema , M. W. G. Johnson , M. D. Johnson , A. King , K. Kuehn , S. Kuhlmann , N. Kuropatkin , O. Lahav , G. Lewis , T. S. Li , C. Lidman , M. Lima , H. Lin , E. Macaulay , M. March , J. L. Marshall , P. Martini , P. Melchior , F. Menanteau , R. Miquel , J. J. Mohr , A. Moller , R. C. Nichol , B. Nord , C. R. ONeill , W. J. Percival , D. Petravick , A. A. Plazas , A. K. Romer , M. Sako , E. Sanchez , V. Scarpine , R. Schindler , M. Schubnell , E. Sheldon , M. Smith , R. C. Smith , M. Soares-Santos , F. Sobreira , N. E. Sommer , E. Suchyta , M. E. C. Swanson , G. Tarle , D. Thomas , B. E. Tucker , D. L. Tucker , S. A. Uddin , V. Vikram , A. R. Walker , R. H. Wechsler , J. Weller , W. Wester , R. C. Wolf , F. Yuan , B. Zhang , J. Zuntz

We present initial results from the Dark Energy Spectroscopic Instrument (DESI) Complete Calibration of the Color-Redshift Relation (DC3R2) secondary target survey. Our analysis uses 230k galaxies that overlap with KiDS-VIKING $ugriZYJHK_s$…

In this paper we present and characterize a nearest-neighbors color-matching photometric redshift estimator that features a direct relationship between the precision and accuracy of the input magnitudes and the output photometric redshifts.…

Cosmology and Nongalactic Astrophysics · Physics 2017-12-20 Melissa L. Graham , Andrew J. Connolly , Željko Ivezić , Samuel J. Schmidt , R. Lynne Jones , Mario Jurić , Scott F. Daniel , Peter Yoachim

We explore three different methods based on weak lensing to extract cosmological constraints from the large-scale structure. In the first approach (method I), small-scale galaxy lensing measurements of their halo mass provide a constraint…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Jaiyul Yoo , Uros Seljak

In this paper, we investigate the possibility of selecting high-redshift Lyman-Break Galaxies (LBG) using current and future broadband wide photometric surveys, such as UNIONS or the Vera C. Rubin LSST. This work is conducted in the context…

We present cosmological constraints from the analysis of two-point correlation functions between galaxy positions and galaxy lensing measured in Dark Energy Survey (DES) Year 3 data and measurements of cosmic microwave background (CMB)…

Cosmology and Nongalactic Astrophysics · Physics 2023-02-15 T. M. C. Abbott , M. Aguena , A. Alarcon , O. Alves , A. Amon , F. Andrade-Oliveira , J. Annis , B. Ansarinejad , S. Avila , D. Bacon , E. J. Baxter , K. Bechtol , M. R. Becker , B. A. Benson , G. M. Bernstein , E. Bertin , J. Blazek , L. E. Bleem , S. Bocquet , D. Brooks , E. Buckley-Geer , D. L. Burke , H. Camacho , A. Campos , J. E. Carlstrom , A. Carnero Rosell , M. Carrasco Kind , J. Carretero , R. Cawthon , C. Chang , C. L. Chang , R. Chen , A. Choi , R. Chown , C. Conselice , J. Cordero , M. Costanzi , T. Crawford , A. T. Crites , M. Crocce , L. N. da Costa , C. Davis , T. M. Davis , T. de Haan , J. De Vicente , J. DeRose , S. Desai , H. T. Diehl , M. A. Dobbs , S. Dodelson , P. Doel , C. Doux , A. Drlica-Wagner , K. Eckert , T. F. Eifler , F. Elsner , J. Elvin-Poole , S. Everett , W. Everett , X. Fang , I. Ferrero , A. Ferté , B. Flaugher , P. Fosalba , O. Friedrich , J. Frieman , J. García-Bellido , M. Gatti , E. M. George , T. Giannantonio , G. Giannini , D. Gruen , R. A. Gruendl , J. Gschwend , G. Gutierrez , N. W. Halverson , I. Harrison , K. Herner , S. R. Hinton , G. P. Holder , D. L. Hollowood , W. L. Holzapfel , K. Honscheid , J. D. Hrubes , H. Huang , E. M. Huff , D. Huterer , B. Jain , D. J. James , M. Jarvis , T. Jeltema , S. Kent , L. Knox , A. Kovacs , E. Krause , K. Kuehn , N. Kuropatkin , O. Lahav , A. T. Lee , P. -F. Leget , P. Lemos , A. R. Liddle , C. Lidman , D. Luong-Van , J. J. McMahon , N. MacCrann , M. March , J. L. Marshall , P. Martini , J. McCullough , P. Melchior , F. Menanteau , S. S. Meyer , R. Miquel , L. Mocanu , J. J. Mohr , R. Morgan , J. Muir , J. Myles , T. Natoli , A. Navarro-Alsina , R. C. Nichol , Y. Omori , S. Padin , S. Pandey , Y. Park , F. Paz-Chinchón , M. E. S. Pereira , A. Pieres , A. A. Plazas Malagón , A. Porredon , J. Prat , C. Pryke , M. Raveri , C. L. Reichardt , R. P. Rollins , A. K. Romer , A. Roodman , R. Rosenfeld , A. J. Ross , J. E. Ruhl , E. S. Rykoff , C. Sánchez , E. Sanchez , J. Sanchez , K. K. Schaffer , L. F. Secco , I. Sevilla-Noarbe , E. Sheldon , T. Shin , E. Shirokoff , M. Smith , Z. Staniszewski , A. A. Stark , E. Suchyta , M. E. C. Swanson , G. Tarle , C. To , M. A. Troxel , I. Tutusaus , T. N. Varga , J. D. Vieira , N. Weaverdyck , R. H. Wechsler , J. Weller , R. Williamson , W. L. K. Wu , B. Yanny , B. Yin , Y. Zhang , J. Zuntz

We present constraints on cosmic structure growth from the analysis of galaxy clustering and galaxy-galaxy lensing with galaxies from the Dark Energy Spectroscopic Instrument (DESI) Data Release 1. We analyze four samples drawn from the…

The existence of galaxy intrinsic clustering severely hampers the weak lensing reconstruction from cosmic magnification. In paper I \citep{Yang2011}, we proposed a minimal variance estimator to overcome this problem. By utilizing the…

Cosmology and Nongalactic Astrophysics · Physics 2016-09-21 Xinjuan Yang , Pengjie Zhang , Jun Zhang , Yu Yu

Cosmological parameter constraints from recent galaxy imaging surveys are reaching $2-3\%$-level accuracy. The upcoming Legacy Survey of Space and Time (LSST) of the Vera C. Rubin Observatory will produce sub-percent level measurements of…

Exploiting the full statistical power of future cosmic shear surveys will necessitate improvements to the accuracy with which the gravitational lensing signal is measured. We present a framework for calibrating shear with image simulations…

The joint analysis of galaxy clustering and galaxy-shear cross-correlations (galaxy-galaxy lensing) in imaging surveys constitutes one of the main avenues to obtain cosmological information. Analyses from Stage III surveys have assumed…

Cosmology and Nongalactic Astrophysics · Physics 2023-10-03 Shivam Pandey , Carles Sánchez , Bhuvnesh Jain , The LSST Dark Energy Science Collaboration

We present a method that accurately propagates residual uncertainties in photometric redshift distributions into the cosmological inference from weak lensing measurements. The redshift distributions of tomographic redshift bins are…

Cosmology and Nongalactic Astrophysics · Physics 2021-06-23 B. Stölzner , B. Joachimi , A. Korn , H. Hildebrandt , A. H. Wright

We use numerical simulations to characterize the performance of a clustering-based method to calibrate photometric redshift biases. In particular, we cross-correlate the weak lensing (WL) source galaxies from the Dark Energy Survey Year 1…

Cosmology and Nongalactic Astrophysics · Physics 2018-03-14 M. Gatti , P. Vielzeuf , C. Davis , R. Cawthon , M. M. Rau , J. DeRose , J. De Vicente , A. Alarcon , E. Rozo , E. Gaztanaga , B. Hoyle , R. Miquel , G. M. Bernstein , C. Bonnett , A. Carnero Rosell , F. J. Castander , C. Chang , L. N. da Costa , D. Gruen , J. Gschwend , W. G. Hartley , H. Lin , N. MacCrann , M. A. G. Maia , R. L. C. Ogando , A. Roodman , I. Sevilla-Noarbe , M. A. Troxel , R. H. Wechsler , J. Asorey , T. M. Davis , K. Glazebrook , S. R. Hinton , G. Lewis , C. Lidman , E. Macaulay , A. Möller , C. R. O'Neill , N. E. Sommer , S. A. Uddin , F. Yuan , B. Zhang , T. M. C. Abbott , S. Allam , J. Annis , K. Bechtol , D. Brooks , D. L. Burke , D. Carollo , M. Carrasco Kind , J. Carretero , C. E. Cunha , C. B. D'Andrea , D. L. DePoy , S. Desai , T. F. Eifler , A. E. Evrard , B. Flaugher , P. Fosalba , J. Frieman , J. García-Bellido , D. W. Gerdes , D. A. Goldstein , R. A. Gruendl , G. Gutierrez , K. Honscheid , J. K. Hoormann , B. Jain , D. J. James , M. Jarvis , T. Jeltema , M. W. G. Johnson , M. D. Johnson , E. Krause , K. Kuehn , S. Kuhlmann , N. Kuropatkin , T. S. Li , M. Lima , J. L. Marshall , P. Melchior , F. Menanteau , R. C. Nichol , B. Nord , A. A. Plazas , K. Reil , E. S. Rykoff , M. Sako , E. Sanchez , V. Scarpine , M. Schubnell , E. Sheldon , M. Smith , R. C. Smith , M. Soares-Santos , F. Sobreira , E. Suchyta , M. E. C. Swanson , G. Tarle , D. Thomas , B. E. Tucker , D. L. Tucker , V. Vikram , A. R. Walker , J. Weller , W. Wester , R. C. Wolf