Baryon acoustic oscillations in the Ly α forest of BOSS quasars*

N. G. Busca, T. Delubac, J. Rich, S. Bailey, A. Font-Ribera, D. Kirkby, J. M. Le Goff, M. M. Pieri, A. Slosar, É Aubourg, J. E. Bautista, D. Bizyaev, M. Blomqvist, A. S. Bolton, J. Bovy, H. Brewington, A. Borde, J. Brinkmann, B. Carithers, R. A.C. Croft & 42 others K. S. Dawson, G. Ebelke, D. J. Eisenstein, J. C. Hamilton, S. Ho, D. W. Hogg, K. Honscheid, K. G. Lee, B. Lundgren, E. Malanushenko, V. Malanushenko, D. Margala, C. Maraston, K. Mehta, J. Miralda-Escudé, A. D. Myers, R. C. Nichol, P. Noterdaeme, M. D. Olmstead, D. Oravetz, N. Palanque-Delabrouille, K. Pan, I. Pâris, W. J. Percival, P. Petitjean, N. A. Roe, E. Rollinde, N. P. Ross, G. Rossi, D. J. Schlegel, Donald P. Schneider, A. Shelden, E. S. Sheldon, A. Simmons, S. Snedden, J. L. Tinker, M. Viel, B. A. Weaver, D. H. Weinberg, M. White, C. Yèche, D. G. York

Research output: Contribution to journalArticle

243 Citations (Scopus)

Abstract

We report a detection of the baryon acoustic oscillation (BAO) feature in the three-dimensional correlation function of the transmitted flux fraction in the Lya forest of high-redshift quasars. The study uses 48 640 quasars in the redshift range 2.1 = z = 3.5 from the Baryon Oscillation Spectroscopic Survey (BOSS) of the third generation of the Sloan Digital Sky Survey (SDSS-III). At a mean redshift z = 2.3, we measure the monopole and quadrupole components of the correlation function for separations in the range 20 h-1 Mpc < r < 200 h-1 Mpc. A peak in the correlation function is seen at a separation equal to (1.01 ± 0.03) times the distance expected for the BAO peak within a concordance .CDM cosmology. This first detection of the BAO peak at high redshift, when the universe was strongly matter dominated, results in constraints on the angular diameter distance DA and the expansion rate H at z = 2.3 that, combined with priors on H0 and the baryon density, require the existence of dark energy. Combined with constraints derived from cosmic microwave background observations, this result implies H(z = 2.3) = (224 ± 8) km s-1 Mpc-1, indicating that the time derivative of the cosmological scale parameter .a = H(z = 2.3)/(1 + z) is significantly greater than that measured with BAO at z ∼ 0.5. This demonstrates that the expansion was decelerating in the range 0.7 < z < 2.3, as expected from the matter domination during this epoch. Combined with measurements of H0, one sees the pattern of deceleration followed by acceleration characteristic of a dark-energy dominated universe.

Original languageEnglish (US)
Article numberA96
JournalAstronomy and Astrophysics
Volume552
DOIs
StatePublished - Apr 11 2013

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quasars
baryons
acoustics
oscillation
oscillations
dark energy
universe
cosmology
expansion
deceleration
energy
monopoles
quadrupoles
time measurement
microwaves
detection

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Busca, N. G., Delubac, T., Rich, J., Bailey, S., Font-Ribera, A., Kirkby, D., ... York, D. G. (2013). Baryon acoustic oscillations in the Ly α forest of BOSS quasars*. Astronomy and Astrophysics, 552, [A96]. https://doi.org/10.1051/0004-6361/201220724
Busca, N. G. ; Delubac, T. ; Rich, J. ; Bailey, S. ; Font-Ribera, A. ; Kirkby, D. ; Le Goff, J. M. ; Pieri, M. M. ; Slosar, A. ; Aubourg, É ; Bautista, J. E. ; Bizyaev, D. ; Blomqvist, M. ; Bolton, A. S. ; Bovy, J. ; Brewington, H. ; Borde, A. ; Brinkmann, J. ; Carithers, B. ; Croft, R. A.C. ; Dawson, K. S. ; Ebelke, G. ; Eisenstein, D. J. ; Hamilton, J. C. ; Ho, S. ; Hogg, D. W. ; Honscheid, K. ; Lee, K. G. ; Lundgren, B. ; Malanushenko, E. ; Malanushenko, V. ; Margala, D. ; Maraston, C. ; Mehta, K. ; Miralda-Escudé, J. ; Myers, A. D. ; Nichol, R. C. ; Noterdaeme, P. ; Olmstead, M. D. ; Oravetz, D. ; Palanque-Delabrouille, N. ; Pan, K. ; Pâris, I. ; Percival, W. J. ; Petitjean, P. ; Roe, N. A. ; Rollinde, E. ; Ross, N. P. ; Rossi, G. ; Schlegel, D. J. ; Schneider, Donald P. ; Shelden, A. ; Sheldon, E. S. ; Simmons, A. ; Snedden, S. ; Tinker, J. L. ; Viel, M. ; Weaver, B. A. ; Weinberg, D. H. ; White, M. ; Yèche, C. ; York, D. G. / Baryon acoustic oscillations in the Ly α forest of BOSS quasars*. In: Astronomy and Astrophysics. 2013 ; Vol. 552.
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title = "Baryon acoustic oscillations in the Ly α forest of BOSS quasars*",
abstract = "We report a detection of the baryon acoustic oscillation (BAO) feature in the three-dimensional correlation function of the transmitted flux fraction in the Lya forest of high-redshift quasars. The study uses 48 640 quasars in the redshift range 2.1 = z = 3.5 from the Baryon Oscillation Spectroscopic Survey (BOSS) of the third generation of the Sloan Digital Sky Survey (SDSS-III). At a mean redshift z = 2.3, we measure the monopole and quadrupole components of the correlation function for separations in the range 20 h-1 Mpc < r < 200 h-1 Mpc. A peak in the correlation function is seen at a separation equal to (1.01 ± 0.03) times the distance expected for the BAO peak within a concordance .CDM cosmology. This first detection of the BAO peak at high redshift, when the universe was strongly matter dominated, results in constraints on the angular diameter distance DA and the expansion rate H at z = 2.3 that, combined with priors on H0 and the baryon density, require the existence of dark energy. Combined with constraints derived from cosmic microwave background observations, this result implies H(z = 2.3) = (224 ± 8) km s-1 Mpc-1, indicating that the time derivative of the cosmological scale parameter .a = H(z = 2.3)/(1 + z) is significantly greater than that measured with BAO at z ∼ 0.5. This demonstrates that the expansion was decelerating in the range 0.7 < z < 2.3, as expected from the matter domination during this epoch. Combined with measurements of H0, one sees the pattern of deceleration followed by acceleration characteristic of a dark-energy dominated universe.",
author = "Busca, {N. G.} and T. Delubac and J. Rich and S. Bailey and A. Font-Ribera and D. Kirkby and {Le Goff}, {J. M.} and Pieri, {M. M.} and A. Slosar and {\'E} Aubourg and Bautista, {J. E.} and D. Bizyaev and M. Blomqvist and Bolton, {A. S.} and J. Bovy and H. Brewington and A. Borde and J. Brinkmann and B. Carithers and Croft, {R. A.C.} and Dawson, {K. S.} and G. Ebelke and Eisenstein, {D. J.} and Hamilton, {J. C.} and S. Ho and Hogg, {D. W.} and K. Honscheid and Lee, {K. G.} and B. Lundgren and E. Malanushenko and V. Malanushenko and D. Margala and C. Maraston and K. Mehta and J. Miralda-Escud{\'e} and Myers, {A. D.} and Nichol, {R. C.} and P. Noterdaeme and Olmstead, {M. D.} and D. Oravetz and N. Palanque-Delabrouille and K. Pan and I. P{\^a}ris and Percival, {W. J.} and P. Petitjean and Roe, {N. A.} and E. Rollinde and Ross, {N. P.} and G. Rossi and Schlegel, {D. J.} and Schneider, {Donald P.} and A. Shelden and Sheldon, {E. S.} and A. Simmons and S. Snedden and Tinker, {J. L.} and M. Viel and Weaver, {B. A.} and Weinberg, {D. H.} and M. White and C. Y{\`e}che and York, {D. G.}",
year = "2013",
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day = "11",
doi = "10.1051/0004-6361/201220724",
language = "English (US)",
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journal = "Astronomy and Astrophysics",
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Busca, NG, Delubac, T, Rich, J, Bailey, S, Font-Ribera, A, Kirkby, D, Le Goff, JM, Pieri, MM, Slosar, A, Aubourg, É, Bautista, JE, Bizyaev, D, Blomqvist, M, Bolton, AS, Bovy, J, Brewington, H, Borde, A, Brinkmann, J, Carithers, B, Croft, RAC, Dawson, KS, Ebelke, G, Eisenstein, DJ, Hamilton, JC, Ho, S, Hogg, DW, Honscheid, K, Lee, KG, Lundgren, B, Malanushenko, E, Malanushenko, V, Margala, D, Maraston, C, Mehta, K, Miralda-Escudé, J, Myers, AD, Nichol, RC, Noterdaeme, P, Olmstead, MD, Oravetz, D, Palanque-Delabrouille, N, Pan, K, Pâris, I, Percival, WJ, Petitjean, P, Roe, NA, Rollinde, E, Ross, NP, Rossi, G, Schlegel, DJ, Schneider, DP, Shelden, A, Sheldon, ES, Simmons, A, Snedden, S, Tinker, JL, Viel, M, Weaver, BA, Weinberg, DH, White, M, Yèche, C & York, DG 2013, 'Baryon acoustic oscillations in the Ly α forest of BOSS quasars*', Astronomy and Astrophysics, vol. 552, A96. https://doi.org/10.1051/0004-6361/201220724

Baryon acoustic oscillations in the Ly α forest of BOSS quasars*. / Busca, N. G.; Delubac, T.; Rich, J.; Bailey, S.; Font-Ribera, A.; Kirkby, D.; Le Goff, J. M.; Pieri, M. M.; Slosar, A.; Aubourg, É; Bautista, J. E.; Bizyaev, D.; Blomqvist, M.; Bolton, A. S.; Bovy, J.; Brewington, H.; Borde, A.; Brinkmann, J.; Carithers, B.; Croft, R. A.C.; Dawson, K. S.; Ebelke, G.; Eisenstein, D. J.; Hamilton, J. C.; Ho, S.; Hogg, D. W.; Honscheid, K.; Lee, K. G.; Lundgren, B.; Malanushenko, E.; Malanushenko, V.; Margala, D.; Maraston, C.; Mehta, K.; Miralda-Escudé, J.; Myers, A. D.; Nichol, R. C.; Noterdaeme, P.; Olmstead, M. D.; Oravetz, D.; Palanque-Delabrouille, N.; Pan, K.; Pâris, I.; Percival, W. J.; Petitjean, P.; Roe, N. A.; Rollinde, E.; Ross, N. P.; Rossi, G.; Schlegel, D. J.; Schneider, Donald P.; Shelden, A.; Sheldon, E. S.; Simmons, A.; Snedden, S.; Tinker, J. L.; Viel, M.; Weaver, B. A.; Weinberg, D. H.; White, M.; Yèche, C.; York, D. G.

In: Astronomy and Astrophysics, Vol. 552, A96, 11.04.2013.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Baryon acoustic oscillations in the Ly α forest of BOSS quasars*

AU - Busca, N. G.

AU - Delubac, T.

AU - Rich, J.

AU - Bailey, S.

AU - Font-Ribera, A.

AU - Kirkby, D.

AU - Le Goff, J. M.

AU - Pieri, M. M.

AU - Slosar, A.

AU - Aubourg, É

AU - Bautista, J. E.

AU - Bizyaev, D.

AU - Blomqvist, M.

AU - Bolton, A. S.

AU - Bovy, J.

AU - Brewington, H.

AU - Borde, A.

AU - Brinkmann, J.

AU - Carithers, B.

AU - Croft, R. A.C.

AU - Dawson, K. S.

AU - Ebelke, G.

AU - Eisenstein, D. J.

AU - Hamilton, J. C.

AU - Ho, S.

AU - Hogg, D. W.

AU - Honscheid, K.

AU - Lee, K. G.

AU - Lundgren, B.

AU - Malanushenko, E.

AU - Malanushenko, V.

AU - Margala, D.

AU - Maraston, C.

AU - Mehta, K.

AU - Miralda-Escudé, J.

AU - Myers, A. D.

AU - Nichol, R. C.

AU - Noterdaeme, P.

AU - Olmstead, M. D.

AU - Oravetz, D.

AU - Palanque-Delabrouille, N.

AU - Pan, K.

AU - Pâris, I.

AU - Percival, W. J.

AU - Petitjean, P.

AU - Roe, N. A.

AU - Rollinde, E.

AU - Ross, N. P.

AU - Rossi, G.

AU - Schlegel, D. J.

AU - Schneider, Donald P.

AU - Shelden, A.

AU - Sheldon, E. S.

AU - Simmons, A.

AU - Snedden, S.

AU - Tinker, J. L.

AU - Viel, M.

AU - Weaver, B. A.

AU - Weinberg, D. H.

AU - White, M.

AU - Yèche, C.

AU - York, D. G.

PY - 2013/4/11

Y1 - 2013/4/11

N2 - We report a detection of the baryon acoustic oscillation (BAO) feature in the three-dimensional correlation function of the transmitted flux fraction in the Lya forest of high-redshift quasars. The study uses 48 640 quasars in the redshift range 2.1 = z = 3.5 from the Baryon Oscillation Spectroscopic Survey (BOSS) of the third generation of the Sloan Digital Sky Survey (SDSS-III). At a mean redshift z = 2.3, we measure the monopole and quadrupole components of the correlation function for separations in the range 20 h-1 Mpc < r < 200 h-1 Mpc. A peak in the correlation function is seen at a separation equal to (1.01 ± 0.03) times the distance expected for the BAO peak within a concordance .CDM cosmology. This first detection of the BAO peak at high redshift, when the universe was strongly matter dominated, results in constraints on the angular diameter distance DA and the expansion rate H at z = 2.3 that, combined with priors on H0 and the baryon density, require the existence of dark energy. Combined with constraints derived from cosmic microwave background observations, this result implies H(z = 2.3) = (224 ± 8) km s-1 Mpc-1, indicating that the time derivative of the cosmological scale parameter .a = H(z = 2.3)/(1 + z) is significantly greater than that measured with BAO at z ∼ 0.5. This demonstrates that the expansion was decelerating in the range 0.7 < z < 2.3, as expected from the matter domination during this epoch. Combined with measurements of H0, one sees the pattern of deceleration followed by acceleration characteristic of a dark-energy dominated universe.

AB - We report a detection of the baryon acoustic oscillation (BAO) feature in the three-dimensional correlation function of the transmitted flux fraction in the Lya forest of high-redshift quasars. The study uses 48 640 quasars in the redshift range 2.1 = z = 3.5 from the Baryon Oscillation Spectroscopic Survey (BOSS) of the third generation of the Sloan Digital Sky Survey (SDSS-III). At a mean redshift z = 2.3, we measure the monopole and quadrupole components of the correlation function for separations in the range 20 h-1 Mpc < r < 200 h-1 Mpc. A peak in the correlation function is seen at a separation equal to (1.01 ± 0.03) times the distance expected for the BAO peak within a concordance .CDM cosmology. This first detection of the BAO peak at high redshift, when the universe was strongly matter dominated, results in constraints on the angular diameter distance DA and the expansion rate H at z = 2.3 that, combined with priors on H0 and the baryon density, require the existence of dark energy. Combined with constraints derived from cosmic microwave background observations, this result implies H(z = 2.3) = (224 ± 8) km s-1 Mpc-1, indicating that the time derivative of the cosmological scale parameter .a = H(z = 2.3)/(1 + z) is significantly greater than that measured with BAO at z ∼ 0.5. This demonstrates that the expansion was decelerating in the range 0.7 < z < 2.3, as expected from the matter domination during this epoch. Combined with measurements of H0, one sees the pattern of deceleration followed by acceleration characteristic of a dark-energy dominated universe.

UR - http://www.scopus.com/inward/record.url?scp=84875895291&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84875895291&partnerID=8YFLogxK

U2 - 10.1051/0004-6361/201220724

DO - 10.1051/0004-6361/201220724

M3 - Article

VL - 552

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

SN - 0004-6361

M1 - A96

ER -

Busca NG, Delubac T, Rich J, Bailey S, Font-Ribera A, Kirkby D et al. Baryon acoustic oscillations in the Ly α forest of BOSS quasars*. Astronomy and Astrophysics. 2013 Apr 11;552. A96. https://doi.org/10.1051/0004-6361/201220724