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Correlations between tracers of the matter density field and gravitational lensing are sensitive to the evolution of the matter power spectrum and the expansion rate across cosmic time. Appropriately defined ratios of such correlation…

Cosmology and Nongalactic Astrophysics · Physics 2019-07-26 J. Prat , E. J. Baxter , T. Shin , C. Sánchez , C. Chang , B. Jain , R. Miquel , A. Alarcon , D. Bacon , G. M. Bernstein , R. Cawthon , T. M. Crawford , C. Davis , J. De Vicente , S. Dodelson , T. F. Eifler , O. Friedrich , M. Gatti , D. Gruen , W. G. Hartley , G. P. Holder , B. Hoyle , M. Jarvis , E. Krause , N. MacCrann , B. Mawdsley , A. Nicola , Y. Omori , A. Pujol , M. M. Rau , C. L. Reichardt , S. Samuroff , E. Sheldon , M. A. Troxel , P. Vielzeuf , J. Zuntz , T. M. C. Abbott , F. B. Abdalla , J. Annis , S. Avila , K. Aylor , B. A. Benson , E. Bertin , L. E. Bleem , D. Brooks , D. L. Burke , J. E. Carlstrom , M. Carrasco Kind , J. Carretero , C. L. Chang , H-M. Cho , R. Chown , A. T. Crites , C. E. Cunha , L. N. da Costa , S. Desai , H. T. Diehl , J. P. Dietrich , M. A. Dobbs , P. Doel , W. B. Everett , A. E. Evrard , B. Flaugher , P. Fosalba , J. García-Bellido , E. Gaztanaga , E. M. George , D. W. Gerdes , T. Giannantonio , R. A. Gruendl , J. Gschwend , G. Gutierrez , T. de Haan , N. W. Halverson , N. L. Harrington , W. L. Holzapfel , K. Honscheid , Z. Hou , J. D. Hrubes , D. J. James , T. Jeltema , L. Knox , R. Kron , K. Kuehn , N. Kuropatkin , O. Lahav , A. T. Lee , E. M. Leitch , M. Lima , D. Luong-Van , M. A. G. Maia , A. Manzotti , D. P. Marrone , J. L. Marshall , J. J. McMahon , P. Melchior , F. Menanteau , S. S. Meyer , C. J. Miller , L. M. Mocanu , J. J. Mohr , T. Natoli , S. Padin , A. A. Plazas , C. Pryke , A. K. Romer , A. Roodman , J. E. Ruhl , E. S. Rykoff , E. Sanchez , J. T. Sayre , V. Scarpine , K. K. Schaffer , S. Serrano , I. Sevilla-Noarbe , 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 , K. Vanderlinde , J. D. Vieira , V. Vikram , A. R. Walker , J. Weller , R. Williamson , O. Zahn

We describe the simulated sky survey underlying the second data challenge (DC2) carried out in preparation for analysis of the Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST) by the LSST Dark Energy Science Collaboration…

Instrumentation and Methods for Astrophysics · Physics 2022-07-22 LSST Dark Energy Science Collaboration , Bela Abolfathi , David Alonso , Robert Armstrong , Éric Aubourg , Humna Awan , Yadu N. Babuji , Franz Erik Bauer , Rachel Bean , George Beckett , Rahul Biswas , Joanne R. Bogart , Dominique Boutigny , Kyle Chard , James Chiang , Chuck F. Claver , Johann Cohen-Tanugi , Céline Combet , Andrew J. Connolly , Scott F. Daniel , Seth W. Digel , Alex Drlica-Wagner , Richard Dubois , Emmanuel Gangler , Eric Gawiser , Thomas Glanzman , Phillipe Gris , Salman Habib , Andrew P. Hearin , Katrin Heitmann , Fabio Hernandez , Renée Hložek , Joseph Hollowed , Mustapha Ishak , Željko Ivezić , Mike Jarvis , Saurabh W. Jha , Steven M. Kahn , J. Bryce Kalmbach , Heather M. Kelly , Eve Kovacs , Danila Korytov , K. Simon Krughoff , Craig S. Lage , François Lanusse , Patricia Larsen , Laurent Le Guillou , Nan Li , Emily Phillips Longley , Robert H. Lupton , Rachel Mandelbaum , Yao-Yuan Mao , Phil Marshall , Joshua E. Meyers , Marc Moniez , Christopher B. Morrison , Andrei Nomerotski , Paul O'Connor , HyeYun Park , Ji Won Park , Julien Peloton , Daniel Perrefort , James Perry , Stéphane Plaszczynski , Adrian Pope , Andrew Rasmussen , Kevin Reil , Aaron J. Roodman , Eli S. Rykoff , F. Javier Sánchez , Samuel J. Schmidt , Daniel Scolnic , Christopher W. Stubbs , J. Anthony Tyson , Thomas D. Uram , Antonia Villarreal , Christopher W. Walter , Matthew P. Wiesner , W. Michael Wood-Vasey , Joe Zuntz

Digital co-addition of astronomical images is a common technique for increasing signal-to-noise and image depth. A modification of this simple technique has been applied to the detection of minor bodies in the Solar System: first stationary…

Earth and Planetary Astrophysics · Physics 2015-05-18 Alex H. Parker , JJ. Kavelaars

Cosmological galaxy surveys aim at mapping the largest volumes to test models with techniques such as cluster abundance, cosmic shear correlations or baryon acoustic oscillations (BAO), which are designed to be independent of galaxy bias.…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 E. Gaztanaga , M. Eriksen , M. Crocce , F. Castander , P. Fosalba , P. Marti , R. Miquel , A. Cabre

Classification of transient and variable light curves is an essential step in using astronomical observations to develop an understanding of their underlying physical processes. However, upcoming deep photometric surveys, including the…

This technical report summarizes the analysis and approach on the image-to-image translation task in the Multimodal Learning for Earth and Environment Challenge (MultiEarth 2022). In terms of strategy optimization, cloud classification is…

Computer Vision and Pattern Recognition · Computer Science 2022-07-05 Fujian Cheng , Yashu Kang , Chunlei Chen , Kezhao Jiang

The overlap of galaxy surveys and CMB experiments presents an ideal opportunity for joint cosmological dataset analyses. In this paper we develop a halo-model-based method for the first joint analysis combining these two experiments using…

Cosmology and Nongalactic Astrophysics · Physics 2023-12-11 Xiao Fang , Elisabeth Krause , Tim Eifler , Simone Ferraro , Karim Benabed , Pranjal R. S. , Emma Ayçoberry , Yohan Dubois , Vivian Miranda

Extending previous studies, we derive generic predictions for lower order cumulants and their correlators for individual tomographic bins as well as between two different bins. We derive the corresponding one- and two-point joint…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 Dipak Munshi , Peter Coles , Martin Kilbinger

Joint analyses of cross-correlations between measurements of galaxy positions, galaxy lensing, and lensing of the cosmic microwave background (CMB) offer powerful constraints on the large-scale structure of the Universe. In a forthcoming…

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

The Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST) will produce several billion photometric redshifts (photo-$z$'s), enabling cosmological analyses to select a subset of galaxies with the most accurate photo-$z$. We…

Cosmology and Nongalactic Astrophysics · Physics 2021-12-08 Adam Broussard , Eric Gawiser

We present a method of calibrating the properties of photometric redshift bins as part of a larger Markov Chain Monte Carlo (MCMC) analysis for the inference of cosmological parameters. The redshift bins are characterised by their mean and…

Cosmology and Nongalactic Astrophysics · Physics 2016-12-02 Michael McLeod , Sreekumar T. Balan , Filipe B. Abdalla

We constrain cosmological and galaxy-bias parameters using the combination of galaxy clustering and galaxy-galaxy lensing measurements from the Dark Energy Survey Year-3 data. We describe our modeling framework, and choice of scales…

Cosmology and Nongalactic Astrophysics · Physics 2022-09-27 S. Pandey , E. Krause , J. DeRose , N. MacCrann , B. Jain , M. Crocce , J. Blazek , A. Choi , H. Huang , C. To , X. Fang , J. Elvin-Poole , J. Prat , A. Porredon , L. F. Secco , M. Rodriguez-Monroy , N. Weaverdyck , Y. Park , M. Raveri , E. Rozo , E. S. Rykoff , G. M. Bernstein , C. Sánchez , M. Jarvis , M. A. Troxel , G. Zacharegkas , C. Chang , A. Alarcon , O. Alves , A. Amon , F. Andrade-Oliveira , E. Baxter , K. Bechtol , M. R. Becker , H. Camacho , A. Campos , A. Carnero Rosell , M. Carrasco Kind , R. Cawthon , R. Chen , P. Chintalapati , C. Davis , E. Di Valentino , H. T. Diehl , S. Dodelson , C. Doux , A. Drlica-Wagner , K. Eckert , T. F. Eifler , F. Elsner , S. Everett , A. Farahi , A. Ferté , P. Fosalba , O. Friedrich , M. Gatti , G. Giannini , D. Gruen , R. A. Gruendl , I. Harrison , W. G. Hartley , E. M. Huff , D. Huterer , P. -F. Leget , J. McCullough , J. Muir , J. Myles , A. Navarro-Alsina , Y. Omori , R. P. Rollins , A. Roodman , R. Rosenfeld , I. Sevilla-Noarbe , E. Sheldon , T. Shin , A. Troja , I. Tutusaus , T. N. Varga , R. H. Wechsler , B. Yanny , B. Yin , Y. Zhang , J. Zuntz , T. M. C. Abbott , M. Aguena , S. Allam , J. Annis , D. Bacon , E. Bertin , D. Brooks , D. L. Burke , J. Carretero , C. Conselice , M. Costanzi , L. N. da Costa , M. E. S. Pereira , J. De Vicente , J. P. Dietrich , P. Doel , A. E. Evrard , I. Ferrero , B. Flaugher , J. Frieman , J. García-Bellido , E. Gaztanaga , D. W. Gerdes , T. Giannantonio , J. Gschwend , G. Gutierrez , S. R. Hinton , D. L. Hollowood , K. Honscheid , D. J. James , T. Jeltema , K. Kuehn , N. Kuropatkin , O. Lahav , M. Lima , H. Lin , M. A. G. Maia , J. L. Marshall , P. Melchior , F. Menanteau , C. J. Miller , R. Miquel , J. J. Mohr , R. Morgan , A. Palmese , F. Paz-Chinchón , D. Petravick , A. Pieres , A. A. Plazas Malagón , E. Sanchez , V. Scarpine , S. Serrano , M. Smith , M. Soares-Santos , E. Suchyta , G. Tarle , D. Thomas , J. Weller

Characterization of the redshift distribution of ensembles of galaxies is pivotal for large scale structure cosmological studies. In this work, we focus on improving the Self-Organizing Map (SOM) methodology for photometric redshift…

Cosmology and Nongalactic Astrophysics · Physics 2024-08-05 A. Campos , B. Yin , S. Dodelson , A. Amon , A. Alarcon , C. Sánchez , G. M. Bernstein , G. Giannini , J. Myles , S. Samuroff , O. Alves , F. Andrade-Oliveira , K. Bechtol , M. R. Becker , J. Blazek , H. Camacho , A. Carnero Rosell , M. Carrasco Kind , R. Cawthon , C. Chang , R. Chen , A. Choi , J. Cordero , C. Davis , J. DeRose , H. T. Diehl , C. Doux , A. Drlica-Wagner , K. Eckert , T. F. Eifler , J. Elvin-Poole , S. Everett , X. Fang , A. Ferté , O. Friedrich , M. Gatti , D. Gruen , R. A. Gruendl , I. Harrison , W. G. Hartley , K. Herner , H. Huang , E. M. Huff , M. Jarvis , E. Krause , N. Kuropatkin , P. -F. Leget , N. MacCrann , J. McCullough , A. Navarro-Alsina , S. Pandey , J. Prat , M. Raveri , R. P. Rollins , A. Roodman , R. Rosenfeld , A. J. Ross , E. S. Rykoff , J. Sanchez , L. F. Secco , I. Sevilla-Noarbe , E. Sheldon , T. Shin , M. A. Troxel , I. Tutusaus , T. N. Varga , R. H. Wechsler , B. Yanny , Y. Zhang , J. Zuntz , M. Aguena , J. Annis , D. Bacon , S. Bocquet , D. Brooks , D. L. Burke , J. Carretero , F. J. Castander , M. Costanzi , L. N. da Costa , J. De Vicente , P. Doel , I. Ferrero , B. Flaugher , J. Frieman , J. García-Bellido , E. Gaztanaga , G. Gutierrez , S. R. Hinton , D. L. Hollowood , K. Honscheid , D. J. James , K. Kuehn , M. Lima , H. Lin , J. L. Marshall , J. Mena-Fernández , F. Menanteau , R. Miquel , R. L. C. Ogando , M. Paterno , M. E. S. Pereira , A. Pieres , A. A. Plazas Malagón , A. Porredon , E. Sanchez , D. Sanchez Cid , M. Smith , E. Suchyta , M. E. C. Swanson , G. Tarle , C. To , V. Vikram , N. Weaverdyck

Ultrasound Tomography has seen a revival of interest in the past decade, especially for breast imaging, due to improvements in both ultrasound and computing hardware. In particular, three-dimensional ultrasound tomography, a fully…

Computational Physics · Physics 2020-05-27 Ashkan Javaherian , Felix Lucka , Ben Cox

The Dark Energy Survey (DES) is a 5000 sq deg griz imaging survey to be conducted using a proposed 3 sq deg (2.2deg-diameter) wide-field mosaic camera on the CTIO Blanco 4m telescope. The primary scientific goal of the DES is to constrain…

Weak lensing surveys are reaching sensitivities at which uncertainties in the galaxy redshift distributions n(z) from photo-z errors degrade cosmological constraints. We use ray-tracing simulations and a simple treatment of photo-z errors…

Cosmology and Nongalactic Astrophysics · Physics 2019-04-24 Matthew W. Abruzzo , Zoltán Haiman

We present calibrations of the redshift distributions of redMaGiC galaxies in the Dark Energy Survey Year 1 (DES Y1) and Sloan Digital Sky Survey (SDSS) DR8 data. These results determine the priors of the redshift distribution of redMaGiC…

We study how the addition of on-board optical photometric bands to future space-based weak lensing instruments could affect the photometric redshift estimation of galaxies, and hence improve estimations of the dark energy parameters through…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Robert Sorba , Marcin Sawicki