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We have investigated, using both a theoretical and an empirical approach, the frequency of low redshift galaxy-galaxy lensing systems in which the signature of weak lensing might be directly detectable. We find good agreement between these…

Cosmology and Nongalactic Astrophysics · Physics 2015-11-18 Catherine O. de Burgh-Day , Edward N. Taylor , Rachel L. Webster , Andrew M. Hopkins

We investigate potential gains in cosmological constraints from the combination of galaxy clustering and galaxy-galaxy lensing by optimizing the lens galaxy sample selection using information from Dark Energy Survey (DES) Year 3 data and…

We perform a galaxy-galaxy lensing study by correlating the shapes of $\sim$2.7 $\times$ 10$^5$ galaxies selected from the VLA FIRST radio survey with the positions of $\sim$38.5 million SDSS galaxies, $\sim$132000 BCGs and $\sim$78000 SDSS…

Astrophysics of Galaxies · Physics 2018-05-04 Constantinos Demetroullas , Michael L. Brown

The Dark Energy Spectroscopic Instrument (DESI) will execute a nearly magnitude-limited survey of low redshift galaxies ($0.05 \leq z \leq 0.4$, median $z \approx 0.2$). Clustering analyses of this Bright Galaxy Survey (BGS) will yield the…

The upcoming new generation of spectroscopic galaxy redshift surveys will provide large samples of cosmic voids, the distinct, large underdense structures in the universe. Combining these with future galaxy imaging surveys, we study the…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 Elisabeth Krause , Tzu-Ching Chang , Olivier Doré , Keiichi Umetsu

We consider the impact of key astrophysical and measurement systematics on constraints on dark energy and modifications to gravity on cosmic scales. We focus on upcoming photometric "Stage III" and "Stage IV" large scale structure surveys…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Istvan Laszlo , Rachel Bean , Donnacha Kirk , Sarah Bridle

We present the first cosmology results from large-scale structure in the Dark Energy Survey (DES) spanning 5000 deg$^2$. We perform an analysis combining three two-point correlation functions (3$\times$2pt): (i) cosmic shear using 100…

Cosmology and Nongalactic Astrophysics · Physics 2022-03-22 DES Collaboration , T. M. C. Abbott , M. Aguena , A. Alarcon , S. Allam , O. Alves , A. Amon , F. Andrade-Oliveira , J. Annis , S. Avila , D. Bacon , E. Baxter , K. Bechtol , M. R. Becker , G. M. Bernstein , S. Bhargava , S. Birrer , J. Blazek , A. Brandao-Souza , S. L. Bridle , D. Brooks , E. Buckley-Geer , D. L. Burke , H. Camacho , A. Campos , A. Carnero Rosell , M. Carrasco Kind , J. Carretero , F. J. Castander , R. Cawthon , C. Chang , A. Chen , R. Chen , A. Choi , C. Conselice , J. Cordero , M. Costanzi , M. Crocce , L. N. da Costa , M. E. da Silva Pereira , C. Davis , T. M. Davis , J. De Vicente , J. DeRose , S. Desai , E. Di Valentino , H. T. Diehl , J. P. Dietrich , S. Dodelson , P. Doel , C. Doux , A. Drlica-Wagner , K. Eckert , T. F. Eifler , F. Elsner , J. Elvin-Poole , S. Everett , A. E. Evrard , X. Fang , A. Farahi , E. Fernandez , I. Ferrero , A. Ferté , P. Fosalba , O. Friedrich , J. Frieman , J. García-Bellido , M. Gatti , E. Gaztanaga , D. W. Gerdes , T. Giannantonio , G. Giannini , D. Gruen , R. A. Gruendl , J. Gschwend , G. Gutierrez , I. Harrison , W. G. Hartley , K. Herner , S. R. Hinton , D. L. Hollowood , K. Honscheid , B. Hoyle , E. M. Huff , D. Huterer , B. Jain , D. J. James , M. Jarvis , N. Jeffrey , T. Jeltema , A. Kovacs , E. Krause , R. Kron , K. Kuehn , N. Kuropatkin , O. Lahav , P. -F. Leget , P. Lemos , A. R. Liddle , C. Lidman , M. Lima , H. Lin , N. MacCrann , M. A. G. Maia , J. L. Marshall , P. Martini , J. McCullough , P. Melchior , J. Mena-Fernández , F. Menanteau , R. Miquel , J. J. Mohr , R. Morgan , J. Muir , J. Myles , S. Nadathur , A. Navarro-Alsina , R. C. Nichol , R. L. C. Ogando , Y. Omori , A. Palmese , S. Pandey , Y. Park , F. Paz-Chinchón , D. Petravick , A. Pieres , A. A. Plazas Malagón , A. Porredon , J. Prat , M. Raveri , M. Rodriguez-Monroy , R. P. Rollins , A. K. Romer , A. Roodman , R. Rosenfeld , A. J. Ross , E. S. Rykoff , S. Samuroff , C. Sánchez , E. Sanchez , J. Sanchez , D. Sanchez Cid , V. Scarpine , M. Schubnell , D. Scolnic , L. F. Secco , S. Serrano , I. Sevilla-Noarbe , E. Sheldon , T. Shin , M. Smith , M. Soares-Santos , E. Suchyta , M. E. C. Swanson , M. Tabbutt , G. Tarle , D. Thomas , C. To , A. Troja , M. A. Troxel , D. L. Tucker , I. Tutusaus , T. N. Varga , A. R. Walker , N. Weaverdyck , R. Wechsler , J. Weller , B. Yanny , B. Yin , Y. Zhang , J. Zuntz

To investigate the effect of gravitational lensing of supernovae in large ongoing surveys, we simulate the effect of gravitational lensing magnification on individual supernovae using observational data input from two large supernova…

Astrophysics · Physics 2015-05-13 Jakob Jonsson , Taia Kronborg , Edvard Mortsell , Jesper Sollerman

We perform a joint analysis of the auto and cross-correlations between three cosmic fields: the galaxy density field, the galaxy weak lensing shear field, and the cosmic microwave background (CMB) weak lensing convergence field. These three…

Cosmology and Nongalactic Astrophysics · Physics 2019-07-31 T. M. C. Abbott , F. B. Abdalla , A. Alarcon , S. Allam , J. Annis , S. Avila , K. Aylor , M. Banerji , N. Banik , E. J. Baxter , K. Bechtol , M. R. Becker , B. A. Benson , G. M. Bernstein , E. Bertin , F. Bianchini , J. Blazek , L. Bleem , L. E. Bleem , S. L. Bridle , D. Brooks , E. Buckley-Geer , D. L. Burke , J. E. Carlstrom , A. Carnero Rosell , M. Carrasco Kind , J. Carretero , F. J. Castander , R. Cawthon , C. Chang , C. L. Chang , H-M. Cho , A. Choi , R. Chown , T. M. Crawford , A. T. Crites , M. Crocce , C. E. Cunha , C. B. D'Andrea , L. N. da Costa , C. Davis , T. de Haan , J. DeRose , S. Desai , J. De Vicente , H. T. Diehl , J. P. Dietrich , M. A. Dobbs , S. Dodelson , P. Doel , A. Drlica-Wagner , T. F. Eifler , J. Elvin-Poole , W. B. Everett , B. Flaugher , P. Fosalba , O. Friedrich , J. Frieman , J. García-Bellido , M. Gatti , E. Gaztanaga , E. M. George , D. W. Gerdes , T. Giannantonio , D. Gruen , R. A. Gruendl , J. Gschwend , G. Gutierrez , N. W. Halverson , N. L. Harrington , W. G. Hartley , G. P. Holder , D. L. Hollowood , W. L. Holzapfel , K. Honscheid , Z. Hou , B. Hoyle , J. D. Hrubes , D. Huterer , B. Jain , D. J. James , M. Jarvis , T. Jeltema , M. W. G. Johnson , M. D. Johnson , S. Kent , D. Kirk , L. Knox , N. Kokron , E. Krause , K. Kuehn , O. Lahav , A. T. Lee , E. M. Leitch , T. S. Li , M. Lima , H. Lin , D. Luong-Van , N. MacCrann , M. A. G. Maia , A. Manzotti , D. P. Marrone , J. L. Marshall , P. Martini , J. J. McMahon , F. Menanteau , S. S. Meyer , R. Miquel , L. M. Mocanu , J. J. Mohr , J. Muir , T. Natoli , A. Nicola , B. Nord , Y. Omori , S. Padin , S. Pandey , A. A. Plazas , A. Porredon , J. Prat , C. Pryke , M. M. Rau , C. L. Reichardt , R. P. Rollins , A. K. Romer , A. Roodman , A. J. Ross , E. Rozo , J. E. Ruhl , E. S. Rykoff , S. Samuroff , C. Sánchez , E. Sanchez , J. T. Sayre , V. Scarpine , K. K. Schaffer , L. F. Secco , S. Serrano , I. Sevilla-Noarbe , E. Sheldon , E. Shirokoff , G. Simard , M. Smith , M. Soares-Santos , F. Sobreira , Z. Staniszewski , A. A. Stark , K. T. Story , E. Suchyta , M. E. C. Swanson , G. Tarle , D. Thomas , M. A. Troxel , D. L. Tucker , K. Vanderlinde , J. D. Vieira , P. Vielzeuf , V. Vikram , A. R. Walker , R. H. Wechsler , J. Weller , R. Williamson , W. L. K. Wu , B. Yanny , O. Zahn , Y. Zhang , J. Zuntz

We present the methodology for the weak lensing and galaxy clustering analyses of the Dark Energy Survey (DES) Year 6 data set. In this work, we design and validate the analysis pipeline for the cosmic shear, galaxy clustering plus…

Cosmology and Nongalactic Astrophysics · Physics 2026-01-22 D. Sanchez-Cid , A. Ferté , J. Blazek , S. Samuroff , A. Amon , F. Andrade-Oliveira , J. M. Coloma-Nadal , J. Muir , A. Porredon , J. Prat , N. Weaverdyck , M. Yamamoto , D. Anbajagane , M. R. Becker , P. Carrilho , C. Chang , M. Crocce , G. Giannini , W. d'Assignies , J. DeRose , S. Dodelson , E. Krause , E. Legnani , J. Mena-Fernández , N. MacCrann , A. Pourtsidou , C. Preston , P. Rogozenski , M. Rodriguez-Monroy , R. Rosenfeld , E. Sanchez , I. Sevilla-Noarbe , M. Soares-Santos , C. To , M. A. Troxel , M. Tsedrik , B. Yin , J. Zuntz , T. M. C. Abbott , M. Aguena , S. Allam , O. Alves , S. Avila , D. Bacon , K. Bechtol , E. Bertin , S. Bocquet , D. Brooks , H. Camacho , R. Camilleri , A. Campos , A. Carnero Rosell , J. Carretero , F. J. Castander , R. Cawthon , A. Choi , L. N. da Costa , M. E. da Silva Pereira , T. M. Davis , J. De Vicente , S. Desai , C. Doux , A. Drlica-Wagner , T. Eifler , J. Elvin-Poole , S. Everett , A. E. Evrard , B. Flaugher , P. Fosalba , J. Frieman , J. García-Bellido , M. Gatti , E. Gaztanaga , P. Giles , K. Glazebrook , D. Gruen , G. Gutierrez , I. Harrison , K. Herner , S. R. Hinton , D. L. Hollowood , K. Honscheid , D. Huterer , B. Jain , D. J. James , N. Jeffrey , T. Kacprzak , K. Kuehn , O. Lahav , S. Lee , J. L. Marshall , F. Menanteau , R. Miquel , J. J. Mohr , J. Myles , R. C. Nichol , R. L. C. Ogando , A. Palmese , M. Paterno , W. J. Percival , A. A. Plazas Malagón , M. Raveri , A. Roodman , C. Sánchez , T. Schutt , E. Sheldon , N. Sherman , T. Shin , M. Smith , E. Suchyta , M. E. C. Swanson , M. Tabbutt , G. Tarle , D. Thomas , D. L. Tucker , V. Vikram , A. R. Walker , B. Yanny

Weak lensing by large-scale structure is an invaluable cosmological tool given that most of the energy density of the concordance cosmology is invisible. Several large ground-based imaging surveys will attempt to measure this effect over…

Cosmology and Nongalactic Astrophysics · Physics 2015-11-18 Eric M. Huff , Christopher M. Hirata , Rachel Mandelbaum , David Schlegel , Uros Seljak , Robert H. Lupton

We present an 8 sigma detection of cosmic magnification measured by the variation of quasar density due to gravitational lensing by foreground large scale structure. To make this measurement we used 3800 square degrees of photometric…

DESI (Dark Energy Spectropic Instrument) is a Stage IV ground-based dark energy experiment that will study baryon acoustic oscillations and the growth of structure through redshift-space distortions with a wide-area galaxy and quasar…

Instrumentation and Methods for Astrophysics · Physics 2016-12-14 DESI Collaboration , Amir Aghamousa , Jessica Aguilar , Steve Ahlen , Shadab Alam , Lori E. Allen , Carlos Allende Prieto , James Annis , Stephen Bailey , Christophe Balland , Otger Ballester , Charles Baltay , Lucas Beaufore , Chris Bebek , Timothy C. Beers , Eric F. Bell , José Luis Bernal , Robert Besuner , Florian Beutler , Chris Blake , Hannes Bleuler , Michael Blomqvist , Robert Blum , Adam S. Bolton , Cesar Briceno , David Brooks , Joel R. Brownstein , Elizabeth Buckley-Geer , Angela Burden , Etienne Burtin , Nicolas G. Busca , Robert N. Cahn , Yan-Chuan Cai , Laia Cardiel-Sas , Raymond G. Carlberg , Pierre-Henri Carton , Ricard Casas , Francisco J. Castander , Jorge L. Cervantes-Cota , Todd M. Claybaugh , Madeline Close , Carl T. Coker , Shaun Cole , Johan Comparat , Andrew P. Cooper , M. -C. Cousinou , Martin Crocce , Jean-Gabriel Cuby , Daniel P. Cunningham , Tamara M. Davis , Kyle S. Dawson , Axel de la Macorra , Juan De Vicente , Timothée Delubac , Mark Derwent , Arjun Dey , Govinda Dhungana , Zhejie Ding , Peter Doel , Yutong T. Duan , Anne Ealet , Jerry Edelstein , Sarah Eftekharzadeh , Daniel J. Eisenstein , Ann Elliott , Stéphanie Escoffier , Matthew Evatt , Parker Fagrelius , Xiaohui Fan , Kevin Fanning , Arya Farahi , Jay Farihi , Ginevra Favole , Yu Feng , Enrique Fernandez , Joseph R. Findlay , Douglas P. Finkbeiner , Michael J. Fitzpatrick , Brenna Flaugher , Samuel Flender , Andreu Font-Ribera , Jaime E. Forero-Romero , Pablo Fosalba , Carlos S. Frenk , Michele Fumagalli , Boris T. Gaensicke , Giuseppe Gallo , Juan Garcia-Bellido , Enrique Gaztanaga , Nicola Pietro Gentile Fusillo , Terry Gerard , Irena Gershkovich , Tommaso Giannantonio , Denis Gillet , Guillermo Gonzalez-de-Rivera , Violeta Gonzalez-Perez , Shelby Gott , Or Graur , Gaston Gutierrez , Julien Guy , Salman Habib , Henry Heetderks , Ian Heetderks , Katrin Heitmann , Wojciech A. Hellwing , David A. Herrera , Shirley Ho , Stephen Holland , Klaus Honscheid , Eric Huff , Timothy A. Hutchinson , Dragan Huterer , Ho Seong Hwang , Joseph Maria Illa Laguna , Yuzo Ishikawa , Dianna Jacobs , Niall Jeffrey , Patrick Jelinsky , Elise Jennings , Linhua Jiang , Jorge Jimenez , Jennifer Johnson , Richard Joyce , Eric Jullo , Stéphanie Juneau , Sami Kama , Armin Karcher , Sonia Karkar , Robert Kehoe , Noble Kennamer , Stephen Kent , Martin Kilbinger , Alex G. Kim , David Kirkby , Theodore Kisner , Ellie Kitanidis , Jean-Paul Kneib , Sergey Koposov , Eve Kovacs , Kazuya Koyama , Anthony Kremin , Richard Kron , Luzius Kronig , Andrea Kueter-Young , Cedric G. Lacey , Robin Lafever , Ofer Lahav , Andrew Lambert , Michael Lampton , Martin Landriau , Dustin Lang , Tod R. Lauer , Jean-Marc Le Goff , Laurent Le Guillou , Auguste Le Van Suu , Jae Hyeon Lee , Su-Jeong Lee , Daniela Leitner , Michael Lesser , Michael E. Levi , Benjamin L'Huillier , Baojiu Li , Ming Liang , Huan Lin , Eric Linder , Sarah R. Loebman , Zarija Lukić , Jun Ma , Niall MacCrann , Christophe Magneville , Laleh Makarem , Marc Manera , Christopher J. Manser , Robert Marshall , Paul Martini , Richard Massey , Thomas Matheson , Jeremy McCauley , Patrick McDonald , Ian D. McGreer , Aaron Meisner , Nigel Metcalfe , Timothy N. Miller , Ramon Miquel , John Moustakas , Adam Myers , Milind Naik , Jeffrey A. Newman , Robert C. Nichol , Andrina Nicola , Luiz Nicolati da Costa , Jundan Nie , Gustavo Niz , Peder Norberg , Brian Nord , Dara Norman , Peter Nugent , Thomas O'Brien , Minji Oh , Knut A. G. Olsen , Cristobal Padilla , Hamsa Padmanabhan , Nikhil Padmanabhan , Nathalie Palanque-Delabrouille , Antonella Palmese , Daniel Pappalardo , Isabelle Pâris , Changbom Park , Anna Patej , John A. Peacock , Hiranya V. Peiris , Xiyan Peng , Will J. Percival , Sandrine Perruchot , Matthew M. Pieri , Richard Pogge , Jennifer E. Pollack , Claire Poppett , Francisco Prada , Abhishek Prakash , Ronald G. Probst , David Rabinowitz , Anand Raichoor , Chang Hee Ree , Alexandre Refregier , Xavier Regal , Beth Reid , Kevin Reil , Mehdi Rezaie , Constance M. Rockosi , Natalie Roe , Samuel Ronayette , Aaron Roodman , Ashley J. Ross , Nicholas P. Ross , Graziano Rossi , Eduardo Rozo , Vanina Ruhlmann-Kleider , Eli S. Rykoff , Cristiano Sabiu , Lado Samushia , Eusebio Sanchez , Javier Sanchez , David J. Schlegel , Michael Schneider , Michael Schubnell , Aurélia Secroun , Uros Seljak , Hee-Jong Seo , Santiago Serrano , Arman Shafieloo , Huanyuan Shan , Ray Sharples , Michael J. Sholl , William V. Shourt , Joseph H. Silber , David R. Silva , Martin M. Sirk , Anze Slosar , Alex Smith , George F. Smoot , Debopam Som , Yong-Seon Song , David Sprayberry , Ryan Staten , Andy Stefanik , Gregory Tarle , Suk Sien Tie , Jeremy L. Tinker , Rita Tojeiro , Francisco Valdes , Octavio Valenzuela , Monica Valluri , Mariana Vargas-Magana , Licia Verde , Alistair R. Walker , Jiali Wang , Yuting Wang , Benjamin A. Weaver , Curtis Weaverdyck , Risa H. Wechsler , David H. Weinberg , Martin White , Qian Yang , Christophe Yeche , Tianmeng Zhang , Gong-Bo Zhao , Yi Zheng , Xu Zhou , Zhimin Zhou , Yaling Zhu , Hu Zou , Ying Zu

In these lectures I give an overview of gravitational lensing, concentrating on theoretical aspects, including derivations of some of the important results. Topics covered include the determination of surface mass densities of intervening…

Cosmology and Nongalactic Astrophysics · Physics 2017-03-08 Alan Heavens
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