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

David Kirkby; Daniel Margala; Slosar Anže Slosar; Stephen Bailey; Nicolás G. Busca; Timothée 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-Escudé; Adam D. Myers; Robert C. Nichol; Nathalie Palanque-Delabrouille; Isabelle Pâris; Patrick Petitjean; Graziano Rossi; David J. Schlegel; Donald P. Schneider; Matteo Viel; David H. Weinberg; Christophe Yèche

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

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

David Kirkby, Daniel Margala, Slosar Anže Slosar, Stephen Bailey, Nicolás G. Busca, Timothée 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-Escudé, Adam D. Myers, Robert C. Nichol, Nathalie Palanque-Delabrouille, Isabelle Pâris, Patrick PetitjeanGraziano Rossi, David J. Schlegel, Donald P. Schneider, Matteo Viel, David H. Weinberg, Christophe Yèche

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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 (US)
Article number	024
Journal	Journal of Cosmology and Astroparticle Physics
Volume	2013
Issue number	3
DOIs	https://doi.org/10.1088/1475-7516/2013/03/024
State	Published - Mar 2013

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics

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10.1088/1475-7516/2013/03/024

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Kirkby, D., Margala, D., Anže Slosar, S., 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-Escudé, J., D. Myers, A., Nichol, R. C., Palanque-Delabrouille, N., Pâris, I., ... Yèche, C. (2013). Fitting methods for baryon acoustic oscillations in the Lyman-α forest fluctuations in BOSS data release 9. Journal of Cosmology and Astroparticle Physics, 2013(3), Article 024. https://doi.org/10.1088/1475-7516/2013/03/024

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title = "Fitting methods for baryon acoustic oscillations in the Lyman-α 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.",

author = "David Kirkby and Daniel Margala and {An{\v z}e Slosar}, Slosar and Stephen Bailey and Busca, {Nicol{\'a}s G.} and Timoth{\'e}e 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-Escud{\'e} and {D. Myers}, Adam and Nichol, {Robert C.} and Nathalie Palanque-Delabrouille and Isabelle P{\^a}ris and Patrick Petitjean and Graziano Rossi and Schlegel, {David J.} and Schneider, {Donald P.} and Matteo Viel and Weinberg, {David H.} and Christophe Y{\`e}che",

year = "2013",

month = mar,

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

language = "English (US)",

volume = "2013",

journal = "Journal of Cosmology and Astroparticle Physics",

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

TY - JOUR

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

AU - Kirkby, David

AU - Margala, Daniel

AU - Anže Slosar, Slosar

AU - Bailey, Stephen

AU - Busca, Nicolás G.

AU - Delubac, Timothée

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-Escudé, Jordi

AU - D. Myers, Adam

AU - Nichol, Robert C.

AU - Palanque-Delabrouille, Nathalie

AU - Pâris, Isabelle

AU - Petitjean, Patrick

AU - Rossi, Graziano

AU - Schlegel, David J.

AU - Schneider, Donald P.

AU - Viel, Matteo

AU - Weinberg, David H.

AU - Yèche, 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.

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VL - 2013

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-α forest fluctuations in BOSS data release 9

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