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I discuss and illustrate the development of large-scale structure in the Universe, emphasising in particular the physical processes and cosmological parameters that most influence the observationally accessible aspects of structure at large…

Astrophysics · Physics 2007-05-23 Simon D. M. White

In this white paper, we present the MegaMapper concept. The MegaMapper is a proposed ground-based experiment to measure Inflation parameters and Dark Energy from galaxy redshifts at $2<z<5$. In order to achieve path-breaking results with a…

Instrumentation and Methods for Astrophysics · Physics 2022-09-12 David J. Schlegel , Juna A. Kollmeier , Greg Aldering , Stephen Bailey , Charles Baltay , Christopher Bebek , Segev BenZvi , Robert Besuner , Guillermo Blanc , Adam S. Bolton , Ana Bonaca , Mohamed Bouri , David Brooks , Elizabeth Buckley-Geer , Zheng Cai , Jeffrey Crane , Regina Demina , Joseph DeRose , Arjun Dey , Peter Doel , Xiaohui Fan , Simone Ferraro , Douglas Finkbeiner , Andreu Font-Ribera , Satya Gontcho A Gontcho , Daniel Green , Gaston Gutierrez , Julien Guy , Henry Heetderks , Dragan Huterer , Leopoldo Infante , Patrick Jelinsky , Dionysios Karagiannis , Stephen M. Kent , Alex G. Kim , Jean-Paul Kneib , Anthony Kremin , Luzius Kronig , Nick Konidaris , Ofer Lahav , Michael L. Lampton , Martin Landriau , Dustin Lang , Alexie Leauthaud , Michael E. Levi , Michele Liguori , Eric V. Linder , Christophe Magneville , Paul Martini , Mario Mateo , Patrick McDonald , Christopher J. Miller , John Moustakas , Adam D. Myers , John Mulchaey , Jeffrey A. Newman , Peter E. Nugent , Nikhil Padmanabhan , Nathalie Palanque-Delabrouille , Antonella Palmese Anthony L. Piro , Claire Poppett , Jason X. Prochaska , Anthony R. Pullen , David Rabinowitz , Anand Raichoor , Solange Ramirez , Hans-Walter Rix , Ashley J. Ross , Lado Samushia , Emmanuel Schaan , Michael Schubnell , Uros Seljak , Hee-Jong Seo , Stephen A. Shectman , Edward F. Schlafly , Joseph Silber , Joshua D. Simon , Zachary Slepian , Anže Slosar , Marcelle Soares-Santos , Greg Tarlé , Ian Thompson , Monica Valluri , Risa H. Wechsler , Martin White , Michael J. Wilson , Christophe Yèche , Dennis Zaritsky , Rongpu Zhou

Using the 21 cm line, observed all-sky and across the redshift range from 0 to 5, the large scale structure of the Universe can be mapped in three dimensions. This can be accomplished by studying specific intensity with resolution ~ 10 Mpc,…

This paper describes a programme to map large-scale cosmic structures on the largest possible scales by using the Five hundred metre Aperture Spherical Telescope (FAST) to make a 21 cm (red-shifted) intensity map of the sky for the range…

Cosmology and Nongalactic Astrophysics · Physics 2017-01-25 George F. Smoot , Ivan Debono

We summarize our work on structures in different stages of aggregation, and spanning a wide range in redshift. We emphasize our work on high resdhift clusters. This comprises the analysis of ~7 square degrees using deep images with several…

Astrophysics · Physics 2007-05-23 C. M. Gutierrez , R. Juncosa

Hydrogen 21-cm Line Intensity Mapping offers the unique opportunity to access the Dark Ages and trace the formation and evolution of the large scale structure of the Universe prior to star and galaxy formation. In this work we investigate…

Cosmology and Nongalactic Astrophysics · Physics 2025-09-22 Elena Vanetti , Eleonora Vanzan , Nicola Bellomo , Alvise Raccanelli

Redshift surveys are a powerful tool of modern cosmology. We discuss two aspects of their power to map the distribution of mass and light in the universe: (1) measuring the mass distribution extending into the infall regions of rich…

Cosmology and Nongalactic Astrophysics · Physics 2011-10-10 Margaret J. Geller , Antonaldo Diaferio , Michael J. Kurtz

Recent extensive, multi-color deep surveys of galaxies open a possibility to get observational estimation of sizes for the largest structures in the Universe. Photometric redshift accuracy (about 0.03(1+z)) allows directly study clustering…

Astrophysics · Physics 2008-09-16 N. V. Nabokov , Yu. V. Baryshev

The large-scale structure is a major source of cosmological information. However, next-generation photometric galaxy surveys will only provide a distorted view of cosmic structures due to large redshift uncertainties. To address the need…

Cosmology and Nongalactic Astrophysics · Physics 2023-01-10 Eleni Tsaprazi , Jens Jasche , Guilhem Lavaux , Florent Leclercq

We present the science case for mapping several thousand galaxy (proto)clusters at z=1-10 with a large aperture single dish sub-mm facility, producing a high-redshift counterpart to local large surveys of rich clusters like the well-studied…

This paper outlines the science case for line-intensity mapping with a space-borne instrument targeting the sub-millimeter (microwaves) to the far-infrared (FIR) wavelength range. Our goal is to observe and characterize the large-scale…

Line-Intensity Mapping (LIM) has emerged as a powerful technique for studying large-scale structure and the high-redshift universe, enabling three-dimensional maps of line emission across vast cosmological volumes. In this review, we…

Cosmology and Nongalactic Astrophysics · Physics 2026-02-04 Tzu-Ching Chang , Adam Lidz

A computer code to simulate temporal evolution of overdensities in a one-dimensional Universe is presented for didactic purposes. The formation of large scale structures in this one-dimensional universe can be studied both in matter or…

Astrophysics · Physics 2009-11-10 Costantino Sigismondi

We examine the prospects for the next generation of surveys aimed at elucidating the nature of dark energy. We review the methods that can be used to determine the redshift evolution of the dark energy equation of state parameter w,…

Astrophysics · Physics 2009-11-11 Roberto Trotta , Richard Bower

We present a phenomenological modification of the standard perturbation theory prediction for the bispectrum in redshift space that allows us to extend the model to mildly non-linear scales over a wide range of redshifts, $z\leq1.5$. We…

Cosmology and Nongalactic Astrophysics · Physics 2014-12-16 Héctor Gil-Marín , Christian Wagner , Jorge Noreña , Licia Verde , Will Percival

Constraints on dark matter annihilation or decay offer unique insights into the nature of dark matter. We illustrate how surveys dedicated to detect the highly redshifted 21 cm signal from the dark ages will offer a new window into…

Cosmology and Nongalactic Astrophysics · Physics 2020-07-22 Katie Short , José Luis Bernal , Alvise Raccanelli , Licia Verde , Jens Chluba

I review the current status of studies of the large-scale structure of the Universe using redshift surveys of galaxies and clusters of galaxies. I first summarise the advances we have made in our knowledge of the cosmography of the z<0.2…

Astrophysics · Physics 2007-05-23 Luigi Guzzo

The z > 2 Lyman-alpha (Lya) forest traces the underlying dark-matter distribution on large scales and, given sufficient sightlines, can be used to create 3D maps of large-scale structure. We examine the observational requirements to…

Cosmology and Nongalactic Astrophysics · Physics 2014-05-23 Khee-Gan Lee , Joseph F. Hennawi , Martin White , Rupert Croft , Melih Ozbek

We study the cross-correlation between maps of the unresolved $\gamma$-ray background constructed from the 12-year data release of the Fermi Large-Area Telescope, and the overdensity of galaxies in the redshift range $z\lesssim0.4$ as…

Cosmology and Nongalactic Astrophysics · Physics 2024-05-29 Anya Paopiamsap , David Alonso , Deaglan J. Bartlett , Maciej Bilicki

Weak gravitational lensing enables direct reconstruction of dark matter maps over cosmologically significant volumes. This research is currently telescope-limited. The Dark Matter Telescope (DMT) is a proposed 8.4 m telescope with a 3…

Astrophysics · Physics 2007-05-23 J. A. Tyson , David Wittman , J. R. P. Angel
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