Fitting methods for baryon acoustic oscillations in the Lyman-alpha forest fluctuations in BOSS data release 9

David Kirkby; Daniel Margala; Anze Slosar; Stephen Bailey; Nicolas G. Busca; Timothee Delubac; James Rich; Julian E. Bautista; Michael Blomqvist; Joel R. Brownstein; Bill Carithers; Rupert A. C. Croft; Kyle S. Dawson; Andreu Font-Ribera; Jordi Miralda-Escude; Adam D. Myers; Robert C. Nichol; Nathalie Palanque-Delabrouille; Isabelle Paris; Patrick Petitjean; Graziano Rossi; David J. Schlegel; Donald P. Schneider; Matteo Viel; David H. Weinberg; Christophe Yeche

doi:10.1088/1475-7516/2013/03/024

Fitting methods for baryon acoustic oscillations in the Lyman-alpha forest fluctuations in BOSS data release 9

David Kirkby, Daniel Margala, Anze Slosar, Stephen Bailey, Nicolas G. Busca, Timothee Delubac, James Rich, Julian E. Bautista, Michael Blomqvist, Joel R. Brownstein, Bill Carithers, Rupert A. C. Croft, Kyle S. Dawson, Andreu Font-Ribera, Jordi Miralda-Escude, Adam D. Myers, Robert C. Nichol, Nathalie Palanque-Delabrouille, Isabelle Paris, Patrick PetitjeanGraziano Rossi, David J. Schlegel, Donald P. Schneider, Matteo Viel, David H. Weinberg, Christophe Yeche

Institute of Cosmology & Gravitation

Research output: Contribution to journal › Article › peer-review

Abstract

We describe fitting methods developed to analyze fluctuations in the Lyman-α forest and measure the parameters of baryon acoustic oscillations (BAO). We apply our methods to BOSS Data Release 9. Our method is based on models of the three-dimensional correlation function in physical coordinate space, and includes the effects of redshift-space distortions, anisotropic non-linear broadening, and broadband distortions. We allow for independent scale factors along and perpendicular to the line of sight to minimize the dependence on our assumed fiducial cosmology and to obtain separate measurements of the BAO angular and relative velocity scales. Our fitting software and the input files needed to reproduce our main BOSS Data Release 9 results are publicly available.

Original language	English
Article number	024
Pages (from-to)	024
Journal	Journal of Cosmology and Astroparticle Physics
Volume	2013
Issue number	3
Early online date	20 Mar 2013
DOIs	https://doi.org/10.1088/1475-7516/2013/03/024
Publication status	Published - Mar 2013

Keywords

dark energy experiments
Lyman alpha forest
cosmological parameters from LSS
baryon acoustic oscillations

Access to Document

10.1088/1475-7516/2013/03/024

Cite this

Kirkby, D., Margala, D., Slosar, A., Bailey, S., Busca, N. G., Delubac, T., Rich, J., Bautista, J. E., Blomqvist, M., Brownstein, J. R., Carithers, B., Croft, R. A. C., Dawson, K. S., Font-Ribera, A., Miralda-Escude, J., Myers, A. D., Nichol, R. C., Palanque-Delabrouille, N., Paris, I., ... Yeche, C. (2013). Fitting methods for baryon acoustic oscillations in the Lyman-alpha forest fluctuations in BOSS data release 9. Journal of Cosmology and Astroparticle Physics, 2013(3), 024. Article 024. https://doi.org/10.1088/1475-7516/2013/03/024

@article{8ec4a1cf08884c85bbca869b6a14eeaf,

title = "Fitting methods for baryon acoustic oscillations in the Lyman-alpha forest fluctuations in BOSS data release 9",

abstract = "We describe fitting methods developed to analyze fluctuations in the Lyman-α forest and measure the parameters of baryon acoustic oscillations (BAO). We apply our methods to BOSS Data Release 9. Our method is based on models of the three-dimensional correlation function in physical coordinate space, and includes the effects of redshift-space distortions, anisotropic non-linear broadening, and broadband distortions. We allow for independent scale factors along and perpendicular to the line of sight to minimize the dependence on our assumed fiducial cosmology and to obtain separate measurements of the BAO angular and relative velocity scales. Our fitting software and the input files needed to reproduce our main BOSS Data Release 9 results are publicly available.",

keywords = "dark energy experiments, Lyman alpha forest, cosmological parameters from LSS, baryon acoustic oscillations",

author = "David Kirkby and Daniel Margala and Anze Slosar and Stephen Bailey and Busca, {Nicolas G.} and Timothee Delubac and James Rich and Bautista, {Julian E.} and Michael Blomqvist and Brownstein, {Joel R.} and Bill Carithers and Croft, {Rupert A. C.} and Dawson, {Kyle S.} and Andreu Font-Ribera and Jordi Miralda-Escude and Myers, {Adam D.} and Nichol, {Robert C.} and Nathalie Palanque-Delabrouille and Isabelle Paris and Patrick Petitjean and Graziano Rossi and Schlegel, {David J.} and Schneider, {Donald P.} and Matteo Viel and Weinberg, {David H.} and Christophe Yeche",

year = "2013",

month = mar,

doi = "10.1088/1475-7516/2013/03/024",

language = "English",

volume = "2013",

pages = "024",

journal = "Journal of Cosmology and Astroparticle Physics",

issn = "1475-7516",

publisher = "IOP Publishing",

number = "3",

}

Kirkby, D, Margala, D, Slosar, A, Bailey, S, Busca, NG, Delubac, T, Rich, J, Bautista, JE, Blomqvist, M, Brownstein, JR, Carithers, B, Croft, RAC, Dawson, KS, Font-Ribera, A, Miralda-Escude, J, Myers, AD, Nichol, RC, Palanque-Delabrouille, N, Paris, I, Petitjean, P, Rossi, G, Schlegel, DJ, Schneider, DP, Viel, M, Weinberg, DH & Yeche, C 2013, 'Fitting methods for baryon acoustic oscillations in the Lyman-alpha forest fluctuations in BOSS data release 9', Journal of Cosmology and Astroparticle Physics, vol. 2013, no. 3, 024, pp. 024. https://doi.org/10.1088/1475-7516/2013/03/024

TY - JOUR

T1 - Fitting methods for baryon acoustic oscillations in the Lyman-alpha forest fluctuations in BOSS data release 9

AU - Kirkby, David

AU - Margala, Daniel

AU - Slosar, Anze

AU - Bailey, Stephen

AU - Busca, Nicolas G.

AU - Delubac, Timothee

AU - Rich, James

AU - Bautista, Julian E.

AU - Blomqvist, Michael

AU - Brownstein, Joel R.

AU - Carithers, Bill

AU - Croft, Rupert A. C.

AU - Dawson, Kyle S.

AU - Font-Ribera, Andreu

AU - Miralda-Escude, Jordi

AU - Myers, Adam D.

AU - Nichol, Robert C.

AU - Palanque-Delabrouille, Nathalie

AU - Paris, Isabelle

AU - Petitjean, Patrick

AU - Rossi, Graziano

AU - Schlegel, David J.

AU - Schneider, Donald P.

AU - Viel, Matteo

AU - Weinberg, David H.

AU - Yeche, Christophe

PY - 2013/3

Y1 - 2013/3

N2 - We describe fitting methods developed to analyze fluctuations in the Lyman-α forest and measure the parameters of baryon acoustic oscillations (BAO). We apply our methods to BOSS Data Release 9. Our method is based on models of the three-dimensional correlation function in physical coordinate space, and includes the effects of redshift-space distortions, anisotropic non-linear broadening, and broadband distortions. We allow for independent scale factors along and perpendicular to the line of sight to minimize the dependence on our assumed fiducial cosmology and to obtain separate measurements of the BAO angular and relative velocity scales. Our fitting software and the input files needed to reproduce our main BOSS Data Release 9 results are publicly available.

AB - We describe fitting methods developed to analyze fluctuations in the Lyman-α forest and measure the parameters of baryon acoustic oscillations (BAO). We apply our methods to BOSS Data Release 9. Our method is based on models of the three-dimensional correlation function in physical coordinate space, and includes the effects of redshift-space distortions, anisotropic non-linear broadening, and broadband distortions. We allow for independent scale factors along and perpendicular to the line of sight to minimize the dependence on our assumed fiducial cosmology and to obtain separate measurements of the BAO angular and relative velocity scales. Our fitting software and the input files needed to reproduce our main BOSS Data Release 9 results are publicly available.

KW - dark energy experiments

KW - Lyman alpha forest

KW - cosmological parameters from LSS

KW - baryon acoustic oscillations

U2 - 10.1088/1475-7516/2013/03/024

DO - 10.1088/1475-7516/2013/03/024

M3 - Article

SN - 1475-7516

VL - 2013

SP - 024

JO - Journal of Cosmology and Astroparticle Physics

JF - Journal of Cosmology and Astroparticle Physics

IS - 3

M1 - 024

ER -

Fitting methods for baryon acoustic oscillations in the Lyman-alpha forest fluctuations in BOSS data release 9

Abstract

Keywords

Access to Document

Fingerprint

Cite this