Related papers: Measuring and unbiasing the BAO shift in the Lyman…

The ACCEL2 Project: Precision Measurements of EFT Parameters and BAO Peak Shifts for the Lyman-$\alpha$ Forest

We present precision measurements of the bias parameters of the one-loop power spectrum model of the Lyman-alpha (Lya) forest, derived within the effective field theory of large-scale structure (EFT). We fit our model to the…

Cosmology and Nongalactic Astrophysics · Physics 2025-03-26 Roger de Belsunce , Shi-Fan Chen , Mikhail M. Ivanov , Corentin Ravoux , Solene Chabanier , Jean Sexton , Zarija Lukic

3D Correlations in the Lyman-$\alpha$ Forest from Early DESI Data

We present the first measurements of Lyman-$\alpha$ (Ly$\alpha$) forest correlations using early data from the Dark Energy Spectroscopic Instrument (DESI). We measure the auto-correlation of Ly$\alpha$ absorption using 88,509 quasars at…

Cosmology and Nongalactic Astrophysics · Physics 2023-08-23 Calum Gordon , Andrei Cuceu , Jonás Chaves-Montero , Andreu Font-Ribera , Alma Xochitl González-Morales , J. Aguilar , S. Ahlen , E. Armengaud , S. Bailey , A. Bault , A. Brodzeller , D. Brooks , T. Claybaugh , R. de la Cruz , K. Dawson , P. Doel , J. E. Forero-Romero , S. Gontcho A Gontcho , J. Guy , H. K. Herrera-Alcantar , V. Iršič , N. G. Karaçaylı , D. Kirkby , M. Landriau , L. Le Guillou , M. E. Levi , A. de la Macorra , M. Manera , P. Martini , A. Meisner , R. Miquel , P. Montero-Camacho , A. Muñoz-Gutiérrez , L. Napolitano , J. Nie , G. Niz , N. Palanque-Delabrouille , W. J. Percival , M. Pieri , C. Poppett , F. Prada , I. Pérez-Ràfols , C. Ramírez-Pérez , C. Ravoux , M. Rezaie , A. J. Ross , G. Rossi , E. Sanchez , D. Schlegel , M. Schubnell , H. Seo , F. Sinigaglia , T. Tan , G. Tarlé , M. Walther , B. A. Weaver , C. Yèche , Z. Zhou , H. Zou

DESI DR2 Results I: Baryon Acoustic Oscillations from the Lyman Alpha Forest

We present the Baryon Acoustic Oscillation (BAO) measurements with the Lyman-alpha (LyA) forest from the second data release (DR2) of the Dark Energy Spectroscopic Instrument (DESI) survey. Our BAO measurements include both the…

Cosmology and Nongalactic Astrophysics · Physics 2025-07-01 DESI Collaboration , M. Abdul-Karim , J. Aguilar , S. Ahlen , C. Allende Prieto , O. Alves , A. Anand , U. Andrade , E. Armengaud , A. Aviles , S. Bailey , A. Bault , J. Behera , S. BenZvi , D. Bianchi , C. Blake , A. Brodzeller , D. Brooks , E. Buckley-Geer , E. Burtin , R. Calderon , R. Canning , A. Carnero Rosell , P. Carrilho , L. Casas , F. J. Castander , R. Cereskaite , M. Charles , E. Chaussidon , J. Chaves-Montero , D. Chebat , T. Claybaugh , S. Cole , A. P. Cooper , A. Cuceu , K. S. Dawson , R. de Belsunce , A. de la Macorra , A. de Mattia , N. Deiosso , J. Della Costa , A. Dey , B. Dey , Z. Ding , P. Doel , J. Edelstein , D. J. Eisenstein , W. Elbers , P. Fagrelius , K. Fanning , S. Ferraro , A. Font-Ribera , J. E. Forero-Romero , C. Garcia-Quintero , L. H. Garrison , E. Gaztañaga , H. Gil-Marín , S. Gontcho A Gontcho , A. X. Gonzalez-Morales , C. Gordon , D. Green , G. Gutierrez , J. Guy , C. Hahn , M. Herbold , H. K. Herrera-Alcantar , M. -F. Ho , K. Honscheid , C. Howlett , D. Huterer , M. Ishak , S. Juneau , N. G. Karaçaylı , R. Kehoe , S. Kent , D. Kirkby , T. Kisner , F. -S. Kitaura , S. E. Koposov , A. Kremin , O. Lahav , C. Lamman , M. Landriau , D. Lang , J. Lasker , J. M. Le Goff , L. Le Guillou , A. Leauthaud , M. E. Levi , Q. Li , T. S. Li , K. Lodha , M. Lokken , C. Magneville , M. Manera , P. Martini , W. L. Matthewson , P. McDonald , A. Meisner , J. Mena-Fernández , R. Miquel , J. Moustakas , D. Muñoz Santos , A. Muñoz-Gutiérrez , A. D. Myers , J. A. Newman , G. Niz , H. E. Noriega , E. Paillas , N. Palanque-Delabrouille , J. Pan , W. J. Percival , I. Pérez-Ràfols , M. M. Pieri , C. Poppett , F. Prada , D. Rabinowitz , A. Raichoor , C. Ramírez-Pérez , M. Rashkovetskyi , C. Ravoux , J. Rich , C. Rockosi , A. J. Ross , G. Rossi , V. Ruhlmann-Kleider , E. Sanchez , N. Sanders , S. Satyavolu , D. Schlegel , M. Schubnell , H. Seo , A. Shafieloo , R. Sharples , J. Silber , F. Sinigaglia , D. Sprayberry , T. Tan , G. Tarlé , P. Taylor , W. Turner , F. Valdes , M. Vargas-Magaña , M. Walther , B. A. Weaver , M. Wolfson , C. Yèche , P. Zarrouk , R. Zhou , H. Zou

Planting a Lyman alpha forest on AbacusSummit

The full-shape correlations of the Lyman alpha (Ly$\alpha$) forest contain a wealth of cosmological information through the Alcock-Paczy\'{n}ski effect. However, these measurements are challenging to model without robustly testing and…

Cosmology and Nongalactic Astrophysics · Physics 2023-07-05 Boryana Hadzhiyska , Andreu Font-Ribera , Andrei Cuceu , Solène Chabanier , Jessica Nicole Aguilar , David Brooks , Axel de la Macorra , Peter Doel , Daniel J. Eisenstein , Jaime E. Forero-Romero , Satya Gontcho A Gontcho , Klaus Honscheid , Robert Kehoe , Martin Landriau , Marc Manera , Ramon Miquel , Jundan Nie , Will Percival , Graziano Rossi , Michael Schubnell , Gregory Tarlé , Zhimin Zhou

Validation of the DESI 2024 Ly$\alpha$ forest BAO analysis using synthetic datasets

The first year of data from the Dark Energy Spectroscopic Instrument (DESI) contains the largest set of Lyman-$\alpha$ (Ly$\alpha$) forest spectra ever observed. This data, collected in the DESI Data Release 1 (DR1) sample, has been used to…

Cosmology and Nongalactic Astrophysics · Physics 2025-03-25 Andrei Cuceu , Hiram K. Herrera-Alcantar , Calum Gordon , Paul Martini , Julien Guy , Andreu Font-Ribera , Alma X. Gonzalez-Morales , M. Abdul-Karim , J. Aguilar , S. Ahlen , E. Armengaud , A. Bault , D. Brooks , T. Claybaugh , A. de la Macorra , P. Doel , K. Fanning , S. Ferraro , J. E. Forero-Romero , E. Gaztañaga , S. Gontcho A Gontcho , G. Gutierrez , K. Honscheid , C. Howlett , N. G. Karaçaylı , D. Kirkby , A. Kremin , M. Landriau , J. M. Le Goff , L. Le Guillou , M. E. Levi , M. Manera , A. Meisner , R. Miquel , J. Moustakas , A. Muñoz-Gutiérrez , A. D. Myers , G. Niz , N. Palanque-Delabrouille , W. J. Percival , C. Poppett , F. Prada , I. Pérez-Ràfols , C. Ramírez-Pérez , C. Ravoux , M. Rezaie , G. Rossi , E. Sanchez , D. Schlegel , M. Schubnell , H. Seo , D. Sprayberry , T. Tan , G. Tarlé , M. Vargas-Magaña , M. Walther , B. A. Weaver , R. Zhou , H. Zou

Cosmology beyond BAO from the 3D distribution of the Lyman-$\alpha$ forest

We propose a new method for fitting the full-shape of the Lyman-$\alpha$ (Ly$\alpha$) forest three-dimensional (3D) correlation function in order to measure the Alcock-Paczynski (AP) effect. Our method preserves the robustness of baryon…

Cosmology and Nongalactic Astrophysics · Physics 2021-08-25 Andrei Cuceu , Andreu Font-Ribera , Benjamin Joachimi , Seshadri Nadathur

The effects of continuum fitting on Lyman-$\alpha$ forest correlations

Correlations of fluctuations of the flux in Lyman-$\alpha$ forests of high-redshift quasars have been observed by the Baryonic Acoustic Oscillation Spectroscopy Survey (BOSS) and the Dark Energy Spectroscopy Instrument (DESI) survey where…

Cosmology and Nongalactic Astrophysics · Physics 2025-10-21 Nicolas Busca , James Rich , Julian Bautista , Andrei Cuceu , Andreu Font-Ribera , Julien Guy , Hiram K. Herrera-Alcantar , Julianna Stermer , Christophe Balland , J. Aguilar , S. Ahlen , D. Bianchi , D. Brooks , T. Claybaugh , A. de la Macorra , P. Doel , S. Ferraro , J. E. Forero-Romero , E. Gaztañaga , C. Gordon , G. Gutierrez , M. Ishak , R. Kehoe , D. Kirkby , A. Kremin , M. Landriau , L. Le Guillou , C. Magneville , P. Martini , R. Miquel , S. Nadathur , N. Palanque-Delabrouille , F. Prada , I. Pérez-Ràfols , C. Ravoux , G. Rossi , E. Sanchez , D. Schlegel , H. Seo , J. Silber , D. Sprayberry , G. Tarlé , B. A. Weaver , R. Zhou , H. Zou

DESI 2024 IV: Baryon Acoustic Oscillations from the Lyman Alpha Forest

We present the measurement of Baryon Acoustic Oscillations (BAO) from the Lyman-$\alpha$ (Ly$\alpha$) forest of high-redshift quasars with the first-year dataset of the Dark Energy Spectroscopic Instrument (DESI). Our analysis uses over…

Cosmology and Nongalactic Astrophysics · Physics 2025-02-03 DESI Collaboration , A. G. Adame , J. Aguilar , S. Ahlen , S. Alam , D. M. Alexander , M. Alvarez , O. Alves , A. Anand , U. Andrade , E. Armengaud , S. Avila , A. Aviles , H. Awan , S. Bailey , C. Baltay , A. Bault , J. Bautista , J. Behera , S. BenZvi , F. Beutler , D. Bianchi , C. Blake , R. Blum , S. Brieden , A. Brodzeller , D. Brooks , E. Buckley-Geer , E. Burtin , R. Calderon , R. Canning , A. Carnero Rosell , R. Cereskaite , J. L. Cervantes-Cota , S. Chabanier , E. Chaussidon , J. Chaves-Montero , S. Chen , X. Chen , T. Claybaugh , S. Cole , A. Cuceu , T. M. Davis , K. Dawson , R. de la Cruz , A. de la Macorra , A. de Mattia , N. Deiosso , A. Dey , B. Dey , J. Ding , Z. Ding , P. Doel , J. Edelstein , S. Eftekharzadeh , D. J. Eisenstein , A. Elliott , P. Fagrelius , K. Fanning , S. Ferraro , J. Ereza , N. Findlay , B. Flaugher , A. Font-Ribera , D. Forero-Sánchez , J. E. Forero-Romero , C. Garcia-Quintero , E. Gaztañaga , H. Gil-Marín , S. Gontcho A Gontcho , A. X. Gonzalez-Morales , V. Gonzalez-Perez , C. Gordon , D. Green , D. Gruen , R. Gsponer , G. Gutierrez , J. Guy , B. Hadzhiyska , C. Hahn , M. M. S Hanif , H. K. Herrera-Alcantar , K. Honscheid , C. Howlett , D. Huterer , V. Iršič , M. Ishak , S. Juneau , N. G. Karaçayli , R. Kehoe , S. Kent , D. Kirkby , A. Kremin , A. Krolewski , Y. Lai , T. -W. Lan , M. Landriau , D. Lang , J. Lasker , J. M. Le Goff , L. Le Guillou , A. Leauthaud , M. E. Levi , T. S. Li , E. Linder , K. Lodha , C. Magneville , M. Manera , D. Margala , P. Martini , M. Maus , P. McDonald , L. Medina-Varela , A. Meisner , J. Mena-Fernández , R. Miquel , J. Moon , S. Moore , J. Moustakas , E. Mueller , A. Muñoz-Gutiérrez , A. D. Myers , S. Nadathur , L. Napolitano , R. Neveux , J. A. Newman , N. M. Nguyen , J. Nie , G. Niz , H. E. Noriega , N. Padmanabhan , E. Paillas , N. Palanque-Delabrouille , J. Pan , S. Penmetsa , W. J. Percival , M. M. Pieri , M. Pinon , C. Poppett , A. Porredon , F. Prada , A. Pérez-Fernández , I. Pérez-Ràfols , D. Rabinowitz , A. Raichoor , C. Ramírez-Pérez , S. Ramirez-Solano , M. Rashkovetskyi , C. Ravoux , M. Rezaie , J. Rich , A. Rocher , C. Rockosi , N. A. Roe , A. Rosado-Marin , A. J. Ross , G. Rossi , R. Ruggeri , V. Ruhlmann-Kleider , L. Samushia , E. Sanchez , C. Saulder , E. F. Schlafly , D. Schlegel , M. Schubnell , H. Seo , R. Sharples , J. Silber , F. Sinigaglia , A. Slosar , A. Smith , D. Sprayberry , T. Tan , G. Tarlé , S. Trusov , R. Vaisakh , D. Valcin , F. Valdes , M. Vargas-Magaña , L. Verde , M. Walther , B. Wang , M. S. Wang , B. A. Weaver , N. Weaverdyck , R. H. Wechsler , D. H. Weinberg , M. White , J. Yu , Y. Yu , S. Yuan , C. Yèche , E. A. Zaborowski , P. Zarrouk , H. Zhang , C. Zhao , R. Zhao , R. Zhou , H. Zou

The negative BAO shift in the Ly$\alpha$ forest from cosmological simulations

We present the first measurement of the Ly$\alpha$ forest BAO shift parameter from cosmological simulations. In particular, we generate a suite of $1000$ accurate effective field-level bias-based Ly$\alpha$ forest simulations of volume…

Cosmology and Nongalactic Astrophysics · Physics 2024-07-25 Francesco Sinigaglia , Francisco-Shu Kitaura , Kentaro Nagamine , Yuri Oku

Broadband distortion modeling in Lyman-$\alpha$ forest BAO fitting

In recent years, the Lyman-$\alpha$ absorption observed in the spectra of high-redshift quasars has been used as a tracer of large-scale structure by means of the three-dimensional Lyman-$\alpha$ forest auto-correlation function at redshift…

Cosmology and Nongalactic Astrophysics · Physics 2015-12-02 Michael Blomqvist , David Kirkby , Julian E. Bautista , Andreu Arinyo-i-Prats , Nicolás G. Busca , Jordi Miralda-Escudé , Anže Slosar , Andreu Font-Ribera , Daniel Margala , Donald P. Schneider , Jose A. Vazquez

DESI DR2 Baryon Acoustic Oscillations from the Lyman Alpha Forest Multipoles

We present an alternative measurement of the Baryon Acoustic Oscillation (BAO) using Legendre multipole representation of the Ly$\alpha$ forest correlation functions from the second data release (DR2) of the Dark Energy Spectroscopic…

Cosmology and Nongalactic Astrophysics · Physics 2026-03-05 N. G. Karaçaylı , A. Cuceu , J. Aguilar , S. Ahlen , S. Bailey , S. BenZvi , D. Bianchi , A. Brodzeller , D. Brooks , T. Claybaugh , A. de la Macorra , Biprateep Dey , P. Doel , J. Estrada , S. Ferraro , A. Font-Ribera , J. E. Forero-Romero , E. Gaztañaga , S. Gontcho A Gontcho , A. X. Gonzalez-Morales , G. Gutierrez , C. Hahn , H. K. Herrera-Alcantar , K. Honscheid , C. Howlett , M. Ishak , R. Joyce , R. Kehoe , D. Kirkby , T. Kisner , A. Kremin , O. Lahav , M. Landriau , J. M. Le Goff , L. Le Guillou , M. E. Levi , M. Manera , P. Martini , A. Meisner , R. Miquel , J. Moustakas , A. Muñoz-Gutiérrez , S. Nadathur , N. Palanque-Delabrouille , W. J. Percival , F. Prada , I. Pérez-Ràfols , G. Rossi , E. Sanchez , D. Schlegel , M. Schubnell , H. Seo , J. Silber , D. Sprayberry , G. Tarlé , B. A. Weaver , R. Zhou , H. Zou

Fast, large volume, GPU enabled simulations for the Ly-alpha forest: power spectrum forecasts for baryon acoustic oscillation experiments

High redshift measurements of the baryonic acoustic oscillation scale (BAO) from large Ly-alpha forest surveys represent the next frontier of dark energy studies. As part of this effort, efficient simulations of the BAO signature from the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 Bradley Greig , James S. Bolton , J. Stuart B. Wyithe

Non-linearities in the Lyman-$\alpha$ forest and in its cross-correlation with dark matter halos

Three-dimensional correlations of the Lyman-$\alpha$ (Ly$\alpha$) forest and cross correlations between the Ly$\alpha$ forest and quasars have been measured on large scales, allowing a precise measurement of the baryon acoustic oscillation…

Cosmology and Nongalactic Astrophysics · Physics 2022-10-04 Jahmour J. Givans , Andreu Font-Ribera , Anže Slosar , Louise Seeyave , Christian Pedersen , Keir K. Rogers , Mathias Garny , Diego Blas , Vid Iršič

Predictions for BAO distance estimates from the cross-correlation of the Lyman-alpha forest and redshifted 21-cm emission

We investigate the possibility of using the cross-correlation of the Lyman-alpha forest and redshifted 21-cm emission to detect the baryon acoustic oscillation (BAO). The standard Fisher matrix formalism is used to determine the accuracy…

Cosmology and Nongalactic Astrophysics · Physics 2013-08-13 Tapomoy Guha Sarkar , Somnath Bharadwaj

Measurement of Baryon Acoustic Oscillations in the Lyman-alpha Forest Fluctuations in BOSS Data Release 9

We use the Baryon Oscillation Spectroscopic Survey (BOSS) Data Release 9 (DR9) to detect and measure the position of the Baryonic Acoustic Oscillation (BAO) feature in the three-dimensional correlation function in the Lyman-alpha forest…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Anže Slosar , Vid Iršič , David Kirkby , Stephen Bailey , Nicolás G. Busca , Timothée Delubac , James Rich , Éric Aubourg , Julian E. Bautista , Vaishali Bhardwaj , Michael Blomqvist , Adam S. Bolton , Jo Bovy , Joel Brownstein , Bill Carithers , Rupert A. C. Croft , Kyle S. Dawson , Andreu Font-Ribera , J. -M. Le Goff , Shirley Ho , Klaus Honscheid , Khee-Gan Lee , Daniel Margala , Patrick McDonald , Bumbarija Medolin , Jordi Miralda-Escudé , Adam D. Myers , Robert C. Nichol , Pasquier Noterdaeme , Nathalie Palanque-Delabrouille , Isabelle Pâris , Patrick Petitjean , Matthew M. Pieri , Yodovina Piškur , Natalie A. Roe , Nicholas P. Ross , Graziano Rossi , David J. Schlegel , Donald P. Schneider , Erin S. Sheldon , Uroš Seljak , Matteo Viel , David H. Weinberg , Christophe Yèche

The Lyman-$\alpha$ Forest from LBGs: First 3D Correlation Measurement with DESI and Prospects for Cosmology

The Lyman-$\alpha$ (Ly$\alpha$) forest is a key tracer of large-scale structure at redshifts z > 2, traditionally studied using spectra of quasars. Here, we explore the viability Lyman Break Galaxies (LBGs) as alternative background sources…

Cosmology and Nongalactic Astrophysics · Physics 2025-12-30 Hiram K. Herrera-Alcantar , Eric Armengaud , Christophe Yèche , Calum Gordon , Laura Casas , Andreu Font-Ribera , Christophe Magneville , Corentin Ravoux , J. Aguilar , S. Ahlen , A. Anand , D. Brooks , E. Chaussidon , T. Claybaugh , A. Cuceu , K. S. Dawson , A. de la Macorra , Arjun Dey , P. Doel , S. Ferraro , J. E. Forero-Romero , E. Gaztañaga , S. Gontcho A Gontcho , A. X. Gonzalez-Morales , G. Gutierrez , J. Guy , C. Hahn , D. Kirkby , A. Kremin , O. Lahav , A. Lambert , M. Landriau , L. Le Guillou , M. Manera , P. Martini , A. Meisner , R. Miquel , A. Muñoz-Gutiérrez , S. Nadathur , N. Palanque-Delabrouille , W. J. Percival , F. Prada , I. Pérez-Ràfols , G. Rossi , E. Sanchez , D. Schlegel , M. Schubnell , J. Silber , D. Sprayberry , G. Tarlé , B. A. Weaver , R. Zhou , H. Zou

DESI DR1 Ly$\alpha$ forest: 3D full-shape analysis and cosmological constraints

We perform an analysis of the full shapes of Lyman-$\alpha$ (Ly$\alpha$) forest correlation functions measured from the first data release (DR1) of the Dark Energy Spectroscopic Instrument (DESI). Our analysis focuses on measuring the…

Cosmology and Nongalactic Astrophysics · Physics 2025-09-22 Andrei Cuceu , Hiram K. Herrera-Alcantar , Calum Gordon , César Ramírez-Pérez , E. Armengaud , A. Font-Ribera , J. Guy , B. Joachimi , P. Martini , S. Nadathur , I. Pérez-Ràfols , J. Rich , J. Aguilar , S. Ahlen , A. Anand , S. Bailey , A. Bault , D. Bianchi , A. Brodzeller , D. Brooks , J. Chaves-Montero , T. Claybaugh , K. S. Dawson , A. de la Macorra , J. Della Costa , P. Doel , S. Ferraro , J. E. Forero-Romero , E. Gaztañaga , S. Gontcho A Gontcho , A. X. Gonzalez-Morales , D. Green , G. Gutierrez , C. Hahn , M. Herbold , K. Honscheid , V. Iršič , M. Ishak , R. Joyce , N. G. Karaçaylı , D. Kirkby , T. Kisner , A. Kremin , O. Lahav , A. Lambert , C. Lamman , M. Landriau , J. M. Le Goff , L. Le Guillou , M. E. Levi , M. Manera , A. Meisner , R. Miquel , J. Moustakas , A. Muñoz-Gutiérrez , J. A. Newman , G. Niz , N. Palanque-Delabrouille , W. J. Percival , Matthew M. Pieri , C. Poppett , F. Prada , C. Ravoux , G. Rossi , E. Sanchez , D. Schlegel , M. Schubnell , H. Seo , J. Silber , F. Sinigaglia , D. Sprayberry , T. Tan , G. Tarlé , M. Walther , B. A. Weaver , C. Yèche , R. Zhou , H. Zou

Quasar-Lyman $\alpha$ Forest Cross-Correlation from BOSS DR11 : Baryon Acoustic Oscillations

We measure the large-scale cross-correlation of quasars with the Lyman alpha forest absorption, using over 164,000 quasars from Data Release 11 of the SDSS-III Baryon Oscillation Spectroscopic Survey. We extend the previous study of roughly…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-17 Andreu Font-Ribera , David Kirkby , Nicolas Busca , Jordi Miralda-Escudé , Nicholas P. Ross , Anže Slosar , Jim Rich , Éric Aubourg , Stephen Bailey , Vaishali Bhardwaj , Julian Bautista , Florian Beutler , Dmitry Bizyaev , Michael Blomqvist , Howard Brewington , Jon Brinkmann , Joel R. Brownstein , Bill Carithers , Kyle S. Dawson , Timothée Delubac , Garrett Ebelke , Daniel J. Eisenstein , Jian Ge , Karen Kinemuchi , Khee-Gan Lee , Viktor Malanushenko , Elena Malanushenko , Moses Marchante , Daniel Margala , Demitri Muna , Adam D. Myers , Pasquier Noterdaeme , Daniel Oravetz , Nathalie Palanque-Delabrouille , Isabelle Pâris , Patrick Petitjean , Matthew M. Pieri , Graziano Rossi , Donald P. Schneider , Audrey Simmons , Matteo Viel , Christophe Yeche , Donald G. York

The Alcock-Paczy\'nski effect from Lyman-$\alpha$ forest correlations: Analysis validation with synthetic data

The three-dimensional distribution of the Ly$\alpha$ forest has been extensively used to constrain cosmology through measurements of the baryon acoustic oscillations (BAO) scale. However, more cosmological information could be extracted…

Cosmology and Nongalactic Astrophysics · Physics 2023-06-21 Andrei Cuceu , Andreu Font-Ribera , Paul Martini , Benjamin Joachimi , Seshadri Nadathur , James Rich , Alma X. González-Morales , Hélion du Mas des Bourboux , James Farr

Baryon Acoustic Oscillations in the Ly{\alpha} forest of BOSS DR11 quasars

We report a detection of the baryon acoustic oscillation (BAO) feature in the flux-correlation function of the Ly{\alpha} forest of high-redshift quasars with a statistical significance of five standard deviations. The study uses 137,562…

Cosmology and Nongalactic Astrophysics · Physics 2015-01-28 Timothée Delubac , Julian E. Bautista , Nicolás G. Busca , James Rich , David Kirkby , Stephen Bailey , Andreu Font-Ribera , Anže Slosar , Khee-Gan Lee , Matthew M. Pieri , Jean-Christophe Hamilton , Éric Aubourg , Michael Blomqvist , Jo Bovy , J. Brinkmann , William Carithers , Kyle S. Dawson , Daniel J. Eisenstein , Satya Gontcho A Gontcho , Jean-Paul Kneib , J. -M. Le Goff , Daniel Margala , Jordi Miralda-Escudé , Adam D. Myers , Robert C. Nichol , Pasquier Noterdaeme , Ross O'Connell , Matthew D. Olmstead , Nathalie Palanque-Delabrouille , Isabelle Pâris , Patrick Petitjean , Nicholas P. Ross , Graziano Rossi , David J. Schlegel , Donald P. Schneider , David H. Weinberg , Christophe Yèche , Donald G. York