Related papers: 3D Correlations in the Lyman-$\alpha$ Forest from …

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

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

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

Characterization of contaminants in the Lyman-alpha forest auto-correlation with DESI

Baryon Acoustic Oscillations can be measured with sub-percent precision above redshift two with the Lyman-alpha forest auto-correlation and its cross-correlation with quasar positions. This is one of the key goals of the Dark Energy…

Cosmology and Nongalactic Astrophysics · Physics 2025-03-25 J. Guy , S. Gontcho A Gontcho , E. Armengaud , A. Brodzeller , A. Cuceu , A. Font-Ribera , H. K. Herrera-Alcantar , N. G. Karaçaylı , A. Muñoz-Gutiérrez , M. Pieri , I. Pérez-Ràfols , C. Ramírez-Pérez , C. Ravoux , J. Rich , M. Walther , M. Abdul-Karim , J. Aguilar , S. Ahlen , A. Bault , D. Brooks , T. Claybaugh , R. de la Cruz , A. de la Macorra , P. Doel , K. Fanning , J. E. Forero-Romero , E. Gaztañaga , A. X. Gonzalez-Morales , G. Gutierrez , C. Hahn , K. Honscheid , S. Juneau , R. Kehoe , D. Kirkby , T. Kisner , A. Kremin , A. Lambert , M. Landriau , L. Le Guillou , M. Manera , P. Martini , A. Meisner , R. Miquel , P. Montero-Camacho , J. Moustakas , E. Mueller , A. D. Myers , J. Nie , G. Niz , N. Palanque-Delabrouille , W. J. Percival , C. Poppett , M. Rezaie , G. Rossi , E. Sanchez , D. Schlegel , M. Schubnell , H. Seo , J. Silber , D. Sprayberry , T. Tan , G. Tarlé , M. Vargas-Magaña , H. Zou

Measuring and unbiasing the BAO shift in the Lyman-Alpha forest with AbacusSummit

The currently observing Dark Energy Spectroscopic Instrument (DESI) places sub-percent constraints on the Baryon Acoustic Oscillations (BAO) scaling parameters from the Lyman-$\alpha$ (Ly-$\alpha$) forest. However, no systematic error…

Cosmology and Nongalactic Astrophysics · Physics 2025-03-18 Boryana Hadzhiyska , Roger de Belsunce , Andrei Cuceu , Julien Guy , Mikhail M. Ivanov , Henri Coquinot , Andreu Font-Ribera

Detection of Ly\beta auto-correlations and Ly\alpha-Ly\beta cross-correlations in BOSS Data Release 9

The Lyman-$\beta$ forest refers to a region in the spectra of distant quasars that lies between the rest-frame Lyman-$\beta$ and Lyman-$\gamma$ emissions. The forest in this region is dominated by a combination of absorption due to resonant…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 Vid Iršič , Anže Slosar , Stephen Bailey , Daniel J. Eisenstein , Andreu Font-Ribera , Jean-Marc Le Goff , Britt Lundgren , Patrick McDonald , Ross O'Connell , Nathalie Palanque-Delabrouille , Patrick Petitjean , Jim Rich , Graziano Rossi , Donald P. Schneider , Erin S. Sheldon , Christophe Yèche

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

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 Lyman-$\alpha$ forest catalog from the Dark Energy Spectroscopic Instrument Early Data Release

We present and validate the catalog of Lyman-$\alpha$ forest fluctuations for 3D analyses using the Early Data Release (EDR) from the Dark Energy Spectroscopic Instrument (DESI) survey. We used 88,511 quasars collected from DESI Survey…

Cosmology and Nongalactic Astrophysics · Physics 2025-03-27 César Ramírez-Pérez , Ignasi Pérez-Ràfols , Andreu Font-Ribera , Marie Lynn Abdul-Karim , E. Armengaud , J. Bautista , S. F. Beltran , L. Cabayol-Garcia , Z. Cai , S. Chabanier , E. Chaussidon , J. Chaves-Montero , A. Cuceu , R. de la Cruz , J. García-Bellido , A. X. Gonzalez-Morales , C. Gordon , H. K. Herrera-Alcantar , V. Iršič , M. Ishak , N. G. Karaçaylı , Zarija Lukić , C. J. Manser , P. Montero-Camacho , L. Napolitano , G. Niz , M. Pieri , C. Ravoux , F. Sinigaglia , T. Tan , M. Walther , B. Wang , J. Aguilar , S. Ahlen , S. Bailey , D. Brooks , T. Claybaugh , K. Dawson , A. de la Macorra , G. Dhungana , P. Doel , K. Fanning , J. E. Forero-Romero , S. Gontcho A Gontcho , J. Guy , K. Honscheid , R. Kehoe , T. Kisner , M. Landriau , L. Le Guillou , M. E. Levi , C. Magneville , P. Martini , A. Meisner , R. Miquel , J. Moustakas , E. Mueller , A. Muñoz-Gutiérrez , J. Nie , N. Palanque-Delabrouille , W. J. Percival , G. Rossi , E. Sanchez , E. F. Schlafly , D. Schlegel , H. Seo , G. Tarlé , B. A. Weaver , C. Yèche , Z. Zhou

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 large-scale Quasar-Lyman \alpha\ Forest Cross-Correlation from BOSS

We measure the large-scale cross-correlation of quasars with the Lyman \alpha\ forest absorption in redshift space, using ~ 60000 quasar spectra from Data Release 9 (DR9) of the Baryon Oscillation Spectroscopic Survey (BOSS). The…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 Andreu Font-Ribera , Eduard Arnau , Jordi Miralda-Escudé , Emmanuel Rollinde , J. Brinkmann , Joel R. Brownstein , Khee-Gan Lee , Adam D. Myers , Nathalie Palanque-Delabrouille , Isabelle Pâris , Patrick Petitjean , James Rich , Nicholas P. Ross , Donald P. Schneider , Martin White

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

The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Baryon acoustic oscillations with Lyman-$\alpha$ forests

We present a measurement of baryonic acoustic oscillations (BAO) from Lyman-$\alpha$ (Ly$\alpha$) absorption and quasars at an effective redshift $z=2.33$ using the complete extended Baryonic Oscillation Spectroscopic Survey (eBOSS). The…

Cosmology and Nongalactic Astrophysics · Physics 2020-10-07 Hélion du Mas des Bourboux , James Rich , Andreu Font-Ribera , Victoria de Sainte Agathe , James Farr , Thomas Etourneau , Jean-Marc Le Goff , Andrei Cuceu , Christophe Balland , Julian E. Bautista , Michael Blomqvist , Jonathan Brinkmann , Joel R. Brownstein , Solène Chabanier , Edmond Chaussidon , Kyle Dawson , Alma X. González-Morales , Julien Guy , Brad W. Lyke , Axel de la Macorra , Eva-Maria Mueller , Adam D. Myers , Christian Nitschelm , Andrea Muñoz Gutiérrez , Nathalie Palanque-Delabrouille , James Parker , Will J. Percival , Ignasi Pérez-Ràfols , Patrick Petitjean , Matthew M. Pieri , Corentin Ravoux , Graziano Rossi , Donald P. Schneider , Hee-Jong Seo , Anže Slosar , Julianna Stermer , M. Vivek , Christophe Yèche , Samantha Youles

Lyman-$\alpha$ forest power spectrum and its cross-correlation with dark matter halos in different astrophysical models

The Ly$\alpha$ forest, a series of HI absorption lines in the quasar spectra, is a powerful tool for probing the large-scale structure of the intergalactic medium. Its three-dimensional (3D) correlation and cross-correlations with quasars…

Cosmology and Nongalactic Astrophysics · Physics 2024-10-23 Koichiro Nakashima , Atsushi J. Nishizawa , Kentaro Nagamine , Yuri Oku , Ikkoh Shimizu

The Lyman-alpha forest in three dimensions: measurements of large scale flux correlations from BOSS 1st-year data

Using a sample of approximately 14,000 z>2.1 quasars observed in the first year of the Baryon Oscillation Spectroscopic Survey (BOSS), we measure the three-dimensional correlation function of absorption in the Lyman-alpha forest. The…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 Anže Slosar , Andreu Font-Ribera , Matthew M. Pieri , James Rich , Jean-Marc Le Goff , Éric Aubourg , Jon Brinkmann , Nicolas Busca , Bill Carithers , Romain Charlassier , Marina Cortês , Rupert Croft , Kyle S. Dawson , Daniel Eisenstein , Jean-Christophe Hamilton , Shirley Ho , Khee-Gan Lee , Robert Lupton , Patrick McDonald , Bumbarija Medolin , Jordi Miralda-Escudé , Demitri Muna , Adam D. Myers , Robert C. Nichol , Nathalie Palanque-Delabrouille , Isabelle Pâris , Patrick Petitjean , Yodovina Piškur , Emmanuel Rollinde , Nicholas P. Ross , David J. Schlegel , Donald P. Schneider , Erin Sheldon , Benjamin A. Weaver , David H. Weinberg , Christophe Yeche , Donald G. York

Baryon acoustic oscillations from the complete SDSS-III Ly$\alpha$-quasar cross-correlation function at $z=2.4$

We present a measurement of baryon acoustic oscillations (BAO) in the cross-correlation of quasars with the Ly$\alpha$-forest flux-transmission at a mean redshift $z=2.40$. The measurement uses the complete SDSS-III data sample: 168,889…

Cosmology and Nongalactic Astrophysics · Physics 2017-12-27 Hélion du Mas des Bourboux , Jean-Marc Le Goff , Michael Blomqvist , Nicolás G. Busca , Julien Guy , James Rich , Christophe Yèche , Julian E. Bautista , Étienne Burtin , Kyle S. Dawson , Daniel J. Eisenstein , Andreu Font-Ribera , David Kirkby , Jordi Miralda-Escudé , Pasquier Noterdaeme , Isabelle Pâris , Patrick Petitjean , Ignasi Pérez-Ràfols , Matthew M. Pieri , Nicholas P. Ross , David J. Schlegel , Donald P. Schneider , Anže Slosar , David H. Weinberg , Pauline Zarrouk

Direct cosmological inference from three-dimensional correlations of the Lyman-$\alpha$ forest

When performing cosmological inference, standard analyses of the Lyman-$\alpha$ (Ly$\alpha$) three-dimensional correlation functions only consider the information carried by the distinct peak produced by baryon acoustic oscillations (BAO).…

Cosmology and Nongalactic Astrophysics · Physics 2022-12-14 Francesca Gerardi , Andrei Cuceu , Andreu Font-Ribera , Benjamin Joachimi , Pablo Lemos

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

First Ly$\alpha$ 1D Bispectrum Measurement in eBOSS

We present the first robust measurement of the one-dimensional Lyman alpha (Ly$\alpha$) forest bispectrum using the complete extended Baryon Oscillation Spectroscopic Survey (eBOSS) quasar sample, corresponding to the sixteenth data release…

Cosmology and Nongalactic Astrophysics · Physics 2024-10-15 Rodrigo de la Cruz , Gustavo Niz , Vid Iršič , Corentin Ravoux , César Ramírez-Pérez , Hiram K. Herrera-Alcantar

Modelling the impact of quasar redshift errors on the full-shape analysis of correlations in the Lyman-$\alpha$ forest

In preparation for the first cosmological measurements from the full-shape of the Lyman-$\alpha$ (Ly$\alpha$) forest from DESI, we must carefully model all relevant systematics that might bias our analysis. It was shown in Youles et al.…

Cosmology and Nongalactic Astrophysics · Physics 2025-12-24 Calum Gordon , Andrei Cuceu , Andreu Font-Ribera , Hiram K. Herrera-Alcantar , Jessica Nicole Aguilar , Steven Ahlen , Davide Bianchi , David Brooks , Todd Claybaugh , Shaun Cole , Axel de la Macorra , Biprateep Dey , Peter Doel , Jaime E. Forero-Romero , Enrique Gaztañaga , Satya Gontcho A Gontcho , Gaston Gutierrez , Julien Guy , Klaus Honscheid , Mustapha Ishak , Robert Kehoe , David Kirkby , Theodore Kisner , Anthony Kremin , Martin Landriau , Laurent Le Guillou , Michael Levi , Marc Manera , Paul Martini , Ramon Miquel , John Moustakas , Seshadri Nadathur , Gustavo Niz , Nathalie Palanque-Delabrouille , Will Percival , Francisco Prada , Ignasi Pérez-Ràfols , Graziano Rossi , Eusebio Sanchez , David Schlegel , Michael Schubnell , Hee-Jong Seo , Joseph Harry Silber , David Sprayberry , Gregory Tarlé , Benjamin Alan Weaver , Rongpu Zhou , Hu Zou