相关论文: DESI DR2 Baryon Acoustic Oscillations from the Lym…

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…

宇宙学与河外天体物理 · 物理学 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

Validation of the DESI DR2 Ly$\alpha$ BAO analysis using synthetic datasets

The second data release (DR2) of the Dark Energy Spectroscopic Instrument (DESI), containing data from the first three years of observations, doubles the number of Lyman-$\alpha$ (Ly$\alpha$) forest spectra in DR1 and it provides the…

天体物理仪器与方法 · 物理学 2025-03-25 L. Casas , H. K. Herrera-Alcantar , J. Chaves-Montero , A. Cuceu , A. Font-Ribera , M. Lokken , M. Abdul-Karim , C. Ramírez-Pérez , J. Aguilar , S. Ahlen , U. Andrade , E. Armengaud , A. Aviles , S. Bailey , S. BenZvi , D. Bianchi , A. Brodzeller , D. Brooks , R. Canning , A. Carnero Rosell , M. Charles , E. Chaussidon , T. Claybaugh , K. S. Dawson , A. de la Macorra , A. de Mattia , Arjun Dey , Biprateep Dey , Z. Ding , P. Doel , D. J. Eisenstein , W. Elbers , S. Ferraro , J. E. Forero-Romero , C. Garcia-Quintero , Lehman H. Garrison , E. Gaztañaga , H. Gil-Marín , S. Gontcho A Gontcho , A. X. Gonzalez-Morales , C. Gordon , G. Gutierrez , J. Guy , M. Herbold , K. Honscheid , C. Howlett , D. Huterer , M. Ishak , S. Juneau , R. Kehoe , D. Kirkby , T. Kisner , A. Kremin , O. Lahav , M. Landriau , J. M. Le Goff , L. Le Guillou , A. Leauthaud , M. E. Levi , Q. Li , M. Manera , P. Martini , A. Meisner , J. Mena-Fernández , R. Miquel , J. Moustakas , D. Muñoz Santos , A. D. Myers , S. Nadathur , L. Napolitano , G. Niz , H. E. Noriega , E. Paillas , N. Palanque-Delabrouille , W. J. Percival , Matthew M. Pieri , C. Poppett , F. Prada , I. Pérez-Ràfols , C. Ravoux , G. Rossi , E. Sanchez , D. Schlegel , M. Schubnell , H. Seo , F. Sinigaglia , D. Sprayberry , T. Tan , G. Tarlé , P. Taylor , W. Turner , M. Vargas-Magaña , M. Walther , B. A. Weaver , M. Wolfson , C. Yèche , P. Zarrouk , R. Zhou

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…

宇宙学与河外天体物理 · 物理学 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

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…

宇宙学与河外天体物理 · 物理学 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

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…

宇宙学与河外天体物理 · 物理学 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

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…

宇宙学与河外天体物理 · 物理学 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

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…

宇宙学与河外天体物理 · 物理学 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

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…

宇宙学与河外天体物理 · 物理学 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

Baryon acoustic oscillations from the cross-correlation of Ly$\alpha$ absorption and quasars in eBOSS DR14

We present a measurement of the baryon acoustic oscillation (BAO) scale at redshift $z=2.35$ from the three-dimensional correlation of Lyman-$\alpha$ (Ly$\alpha$) forest absorption and quasars. The study uses 266,590 quasars in the redshift…

宇宙学与河外天体物理 · 物理学 2019-09-11 Michael Blomqvist , Hélion du Mas des Bourboux , Nicolás G. Busca , Victoria de Sainte Agathe , James Rich , Christophe Balland , Julian E. Bautista , Kyle Dawson , Andreu Font-Ribera , Julien Guy , Jean-Marc Le Goff , Nathalie Palanque-Delabrouille , Will J. Percival , Ignasi Pérez-Ràfols , Matthew M. Pieri , Donald P. Schneider , Anže Slosar , Christophe Yèche

Baryon acoustic oscillations at z = 2.34 from the correlations of Ly$\alpha$ absorption in eBOSS DR14

We measure the imprint of primordial baryon acoustic oscillations (BAO) in the correlation function of Ly$\alpha$ absorption in quasar spectra from the Baryon Oscillation Spectroscopic Survey (BOSS) and the extended BOSS (eBOSS) in Data…

宇宙学与河外天体物理 · 物理学 2019-09-11 Victoria de Sainte Agathe , Christophe Balland , Hélion du Mas des Bourboux , Nicolás G. Busca , Michael Blomqvist , Julien Guy , James Rich , Andreu Font-Ribera , Matthew M. Pieri , Julian E. Bautista , Kyle Dawson , Jean-Marc Le Goff , Axel de la Macorra , Nathalie Palanque-Delabrouille , Will J. Percival , Ignasi Pérez-Ràfols , Donald P. Schneider , Anže Slosar , Christophe Yèche

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…

宇宙学与河外天体物理 · 物理学 2022-10-04 Jahmour J. Givans , Andreu Font-Ribera , Anže Slosar , Louise Seeyave , Christian Pedersen , Keir K. Rogers , Mathias Garny , Diego Blas , Vid Iršič

Measurement of BAO correlations at $z=2.3$ with SDSS DR12 \lya-Forests

We use flux-transmission correlations in \Lya forests to measure the imprint of baryon acoustic oscillations (BAO). The study uses spectra of 157,783 quasars in the redshift range $2.1\le z \le 3.5$ from the Sloan Digital Sky Survey (SDSS)…

宇宙学与河外天体物理 · 物理学 2017-07-05 Julian E. Bautista , Nicolás G. Busca , Julien Guy , James Rich , Michael Blomqvist , Hélion du Mas des Bourboux , Matthew M. Pieri , Andreu Font-Ribera , Stephen Bailey , Timothée Delubac , David Kirkby , Jean-Marc Le Goff , Daniel Margala , Anže Slosar , Jose Alberto Vazquez , Joel R. Brownstein , Kyle S. Dawson , Daniel J. Eisenstein , Jordi Miralda-Escudé , Pasquier Noterdaeme , Nathalie Palanque-Delabrouille , Isabelle Pâris , Patrick Petitjean , Nicholas P. Ross , Donald P. Schneider , David H. Weinberg , Christophe Yèche

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…

宇宙学与河外天体物理 · 物理学 2025-03-18 Boryana Hadzhiyska , Roger de Belsunce , Andrei Cuceu , Julien Guy , Mikhail M. Ivanov , Henri Coquinot , Andreu Font-Ribera

Optimal data compression for Lyman-$\alpha$ forest cosmology

The Lyman-$\alpha$ (Ly$\alpha$) three-dimensional correlation functions have been widely used to perform cosmological inference using the baryon acoustic oscillation (BAO) scale. While the traditional inference approach employs a data…

宇宙学与河外天体物理 · 物理学 2024-02-15 Francesca Gerardi , Andrei Cuceu , Benjamin Joachimi , Seshadri Nadathur , Andreu Font-Ribera

DESI DR2 Results II: Measurements of Baryon Acoustic Oscillations and Cosmological Constraints

We present baryon acoustic oscillation (BAO) measurements from more than 14 million galaxies and quasars drawn from the Dark Energy Spectroscopic Instrument (DESI) Data Release 2 (DR2), based on three years of operation. For cosmology…

宇宙学与河外天体物理 · 物理学 2025-10-10 DESI Collaboration , M. Abdul-Karim , J. Aguilar , S. Ahlen , S. Alam , L. Allen , C. Allende Prieto , O. Alves , A. Anand , U. Andrade , E. Armengaud , A. Aviles , S. Bailey , C. Baltay , P. Bansal , A. Bault , J. Behera , S. BenZvi , D. Bianchi , C. Blake , S. Brieden , 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 , X. Chen , T. Claybaugh , S. Cole , A. P. Cooper , A. Cuceu , K. S. Dawson , A. de la Macorra , A. de Mattia , N. Deiosso , J. Della Costa , R. Demina , A. Dey , B. Dey , Z. Ding , P. Doel , J. Edelstein , D. J. Eisenstein , W. Elbers , P. Fagrelius , K. Fanning , E. Fernández-García , S. Ferraro , A. Font-Ribera , J. E. Forero-Romero , C. S. Frenk , C. Garcia-Quintero , L. H. Garrison , E. Gaztañaga , H. Gil-Marín , S. Gontcho A Gontcho , D. Gonzalez , A. X. Gonzalez-Morales , C. Gordon , D. Green , G. Gutierrez , J. Guy , B. Hadzhiyska , C. Hahn , S. He , M. Herbold , H. K. Herrera-Alcantar , M. Ho , K. Honscheid , C. Howlett , D. Huterer , M. Ishak , S. Juneau , N. V. Kamble , N. G. Karaçaylı , R. Kehoe , S. Kent , A. G. Kim , D. Kirkby , T. Kisner , S. E. Koposov , A. Kremin , A. Krolewski , 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 , F. Lozano-Rodríguez , C. Magneville , M. Manera , P. Martini , W. L. Matthewson , A. Meisner , J. Mena-Fernández , A. Menegas , T. Mergulhão , R. Miquel , J. Moustakas , A. Muñoz-Gutiérrez , D. Muñoz-Santos , A. D. Myers , S. Nadathur , K. Naidoo , L. Napolitano , J. A. Newman , G. Niz , H. E. Noriega , E. Paillas , N. Palanque-Delabrouille , J. Pan , J. Peacock , Marcos Pellejero Ibanez , W. J. Percival , A. Pérez-Fernández , I. Pérez-Ràfols , M. M. Pieri , C. Poppett , F. Prada , D. Rabinowitz , A. Raichoor , C. Ramírez-Pérez , M. Rashkovetskyi , C. Ravoux , J. Rich , A. Rocher , C. Rockosi , J. Rohlf , J. O. Román-Herrera , A. J. Ross , G. Rossi , R. Ruggeri , V. Ruhlmann-Kleider , L. Samushia , E. Sanchez , N. Sanders , D. Schlegel , M. Schubnell , H. Seo , A. Shafieloo , R. Sharples , J. Silber , F. Sinigaglia , D. Sprayberry , T. Tan , G. Tarlé , P. Taylor , W. Turner , L. A. Ureña-López , R. Vaisakh , F. Valdes , G. Valogiannis , M. Vargas-Magaña , L. Verde , M. Walther , B. A. Weaver , D. H. Weinberg , M. White , M. Wolfson , C. Yèche , J. Yu , E. A. Zaborowski , P. Zarrouk , Z. Zhai , H. Zhang , C. Zhao , G. B. Zhao , R. Zhou , H. Zou

Baryon Acoustic Oscillations in the Lyman Alpha Forest

We use hydrodynamic cosmological simulations in a (600 Mpc)^3 volume to study the observability of baryon acoustic oscillations (BAO) in the intergalactic medium as probed by Lyman alpha forest (LAF) absorption. The large scale separation…

宇宙学与河外天体物理 · 物理学 2015-05-13 Michael L. Norman , Pascal Paschos , Robert Harkness

Baryon Acoustic Oscillations from the C IV Forest with DESI DR2

We present a measurement of Baryon Acoustic Oscillations (BAO) in the cross-correlation of triply ionized carbon C IV absorption with the positions of quasars (QSO) and Emission Line Galaxies (ELG). We use quasars and ELGs from the second…

宇宙学与河外天体物理 · 物理学 2026-01-14 Abby Bault , Andrei Cuceu , Julien Guy , J. Aguilar , S. Ahlen , D. Bianchi , A. Brodzeller , D. Brooks , R. Canning , E. Chaussidon , T. Claybaugh , R. de Belsunce , A. de la Macorra , Arjun Dey , P. Doel , S. Ferraro , A. Font-Ribera , J. E. Forero-Romero , E. Gaztañaga , S. Gontcho A Gontcho , C. Gordon , D. Green , G. Gutierrez , C. Hahn , H. K. Herrera-Alcantar , K. Honscheid , M. Ishak , R. Joyce , S. Juneau , D. Kirkby , A. Kremin , C. Lamman , M. Landriau , 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 , Matthew M. Pieri , C. Poppett , F. Prada , I. Pérez-Ràfols , G. Rossi , E. Sanchez , D. Schlegel , H. Seo , J. Silber , D. Sprayberry , G. Tarlé , B. A. Weaver

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…

宇宙学与河外天体物理 · 物理学 2013-08-13 Tapomoy Guha Sarkar , Somnath Bharadwaj

The Imprint of the Baryon Acoustic Oscillations (BAO) in the Cross-correlation of the Redshifted HI 21-cm Signal and the Ly-alpha Forest

The cross-correlation of the Ly-alpha forest and redshifted 21-cm emission has recently been proposed as an observational tool for mapping out the large-scale structures in the post-reionization era z < 6. This has a significant advantage…

宇宙学与河外天体物理 · 物理学 2011-12-06 Tapomoy Guha Sarkar , Somnath Bharadwaj

First Detection of the Baryon Acoustic Oscillation (BAO) Feature in the 3-Point Correlation Function of DESI DR1 Luminous Red Galaxies

We present the first detection of the 3-Point Correlation Function (3PCF) Baryon Acoustic Oscillation (BAO) signal from the DESI Data Release 1 (DR1) sample of Luminous Red Galaxies (LRGs), which contains over 2.1 million galaxies. Our…

宇宙学与河外天体物理 · 物理学 2026-02-19 Farshad Kamalinejad , Zachary Slepian , Alex Krolewski , Alessandro Greco , William Ortolá Leonard , Jessica Chellino , Matthew Reinhard , Elena Fernández-García , Francisco Prada , J. Aguilar , S. Ahlen , A. Anand , C. Bebek , D. Bianchi , D. Brooks , T. Claybaugh , A. Cuceu , K. S. Dawson , A. de la Macorra , R. Demina , P. Doel , J. Edelstein , J. E. Forero-Romero , E. Gaztañaga , S. Gontcho A Gontcho , G. Gutierrez , H. K. Herrera-Alcantar , K. Honscheid , C. Howlett , D. Huterer , M. Ishak , R. Joyce , S. Juneau , D. Kirkby , T. Kisner , A. Kremin , O. Lahav , C. Lamman , M. Landriau , L. Le Guillou , M. Manera , A. Meisner , R. Miquel , J. A. Newman , W. J. Percival , C. Poppett , I. Pérez-Ràfols , L. Samushia , E. Sanchez , D. Schlegel , M. Schubnell , H. Seo , J. Silber , D. Sprayberry , G. Tarlé , B. A. Weaver , C. Zhao , H. Zou