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P. D. Meerburg et al
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E. Castorina et al
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A. Moradinezhad Dizgah, H. Lee, M. Schmittfull, and C. Dvorkin, “Capturing non-Gaussianity of the large-scale structure with weighted skew-spectra,” JCAP
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1911
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M. Sinha and L. H. Garrison, “corrfunc – a suite of blazing fast correlation functions on the CPU,” Mon. Not. Roy. Astron. Soc
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1911
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O. H. E. Philcox and D. J. Eisenstein, “Computing the Small-Scale Galaxy Power Spectrum and Bispectrum in Configuration-Space,” Mon. Not. Roy. Astron. Soc
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1912
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C. Hahn, R. Scoccimarro, M. R. Blanton, J. L. Tinker, and S. A. Rodríguez-Torres, “The effect of fibre collisions on the galaxy power spectrum multipoles,” Mon. Not. Roy. Astron. Soc
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F. Bernardeau, S. Colombi, E. Gaztanaga, and R. Scoccimarro, “Large scale structure of the universe and cosmological perturbation theory,” Phys. Rept
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T. Nishimichi, G. D’Amico, M. M. Ivanov, L. Senatore, M. Simonović, M. Takada, M. Zaldarriaga, and P. Zhang, “Blinded challenge for precision cosmology with large-scale structure: results from effective field theory for the redshift-space galaxy power spectrum,” Phys. Rev. D
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N. Bartolo, E. Komatsu, S. Matarrese, and A. Riotto, “Non-Gaussianity from inflation: Theory and observations,” Phys. Rept
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A. Chudaykin, M. M. Ivanov, O. H. E. Philcox, and M. Simonović, “Nonlinear perturbation theory extension of the Boltzmann code CLASS,” Phys. Rev. D
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2004
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R. Scoccimarro, E. Sefusatti, and M. Zaldarriaga, “Probing primordial non-Gaussianity with large - scale structure,” Phys. Rev. D
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D. Munshi, T. Namikawa, T. D. Kitching, J. D. McEwen, and F. R. Bouchet, “Weak Lensing Skew-Spectrum,” Mon. Not. Roy. Astron. Soc
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2006
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P. Creminelli, A. Nicolis, L. Senatore, M. Tegmark, and M. Zaldarriaga, “Limits on non-gaussianities from wmap data,” JCAP
2006
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K. Yamamoto, M. Nakamichi, A. Kamino, B. A. Bassett, and H. Nishioka, “A Measurement of the quadrupole power spectrum in the clustering of the 2dF QSO Survey,” Publ. Astron. Soc. Jap
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2024

Analysis of BOSS Galaxy Data with Weighted Skew-Spectra

Chen, Shu-Fan, Chakraborty, Priyesh, Dvorkin, Cora

Understand

We present the first application of the weighted skew-spectra to analyze non-Gaussian information in galaxy survey data.

Using the tree-level galaxy skew-spectra together with the one-loop power spectrum multipoles, we analyze the Sloan Digital Sky Survey (SDSS)-III Baryon Oscillation Spectroscopic Survey (BOSS) galaxy clustering data, and target our search towards the equilateral bispectrum shape of primordial non-Gaussianity.
We use the Effective Field Theory model for the galaxy power spectrum and bispectrum, and account for systematic effects, such as the survey geometry.
From our likelihood analysis, we find $f_{\rm NL}^{\rm equil}=-34^{+296}_{-334}$ at $68\%$ CL, consistent with previous works, while systematic errors from our treatment of the survey geometry lead to an unreliable estimation of $f_{\rm NL}^{\rm ortho}$.

Built on

P. D. Meerburg et al
Original
1903
Earlier work this paper cites.
E. Castorina et al
Original
1904
Earlier work this paper cites.
A. Lewis, “GetDist: a Python package for analysing Monte Carlo samples,” arXiv:1910.13970 [astro-ph.IM]
Original
1910
Earlier work this paper cites.
A. Moradinezhad Dizgah, H. Lee, M. Schmittfull, and C. Dvorkin, “Capturing non-Gaussianity of the large-scale structure with weighted skew-spectra,” JCAP
Original
1911
Earlier work this paper cites.
M. Sinha and L. H. Garrison, “corrfunc – a suite of blazing fast correlation functions on the CPU,” Mon. Not. Roy. Astron. Soc
Original
1911
Earlier work this paper cites.
O. H. E. Philcox and D. J. Eisenstein, “Computing the Small-Scale Galaxy Power Spectrum and Bispectrum in Configuration-Space,” Mon. Not. Roy. Astron. Soc
Original
1912
Earlier work this paper cites.
C. Hahn, R. Scoccimarro, M. R. Blanton, J. L. Tinker, and S. A. Rodríguez-Torres, “The effect of fibre collisions on the galaxy power spectrum multipoles,” Mon. Not. Roy. Astron. Soc
Original
1956
Earlier work this paper cites.
C. Alcock and B. Paczynski, “An evolution free test for non-zero cosmological constant,” Nature
1979
Earlier work this paper cites.
H. A. Feldman, N. Kaiser, and J. A. Peacock, “Power spectrum analysis of three-dimensional redshift surveys,” Astrophys. J
1994
Earlier work this paper cites.
D. J. Eisenstein and W. Hu, “Power spectra for cold dark matter and its variants,” Astrophys. J
1997
Earlier work this paper cites.
A. J. S. Hamilton, “Uncorrelated modes of the nonlinear power spectrum,” Mon. Not. Roy. Astron. Soc
2000
Earlier work this paper cites.
A. Lewis, A. Challinor, and A. Lasenby, “Efficient computation of CMB anisotropies in closed FRW models,” Astrophys. J
2000
Earlier work this paper cites.
F. Bernardeau, S. Colombi, E. Gaztanaga, and R. Scoccimarro, “Large scale structure of the universe and cosmological perturbation theory,” Phys. Rept
2002
Earlier work this paper cites.
T. Nishimichi, G. D’Amico, M. M. Ivanov, L. Senatore, M. Simonović, M. Takada, M. Zaldarriaga, and P. Zhang, “Blinded challenge for precision cosmology with large-scale structure: results from effective field theory for the redshift-space galaxy power spectrum,” Phys. Rev. D
Original
2003
Earlier work this paper cites.
N. Bartolo, E. Komatsu, S. Matarrese, and A. Riotto, “Non-Gaussianity from inflation: Theory and observations,” Phys. Rept
2004
Earlier work this paper cites.
D. Babich, P. Creminelli, and M. Zaldarriaga, “The Shape of non-Gaussianities,” JCAP
2004
Earlier work this paper cites.
A. Chudaykin, M. M. Ivanov, O. H. E. Philcox, and M. Simonović, “Nonlinear perturbation theory extension of the Boltzmann code CLASS,” Phys. Rev. D
Original
2004
Earlier work this paper cites.
R. Scoccimarro, E. Sefusatti, and M. Zaldarriaga, “Probing primordial non-Gaussianity with large - scale structure,” Phys. Rev. D
2004
Earlier work this paper cites.
E. Komatsu, D. N. Spergel, and B. D. Wandelt, “Measuring primordial non-Gaussianity in the cosmic microwave background,” Astrophys. J
2005
Earlier work this paper cites.
T. Hahn, “CUBA: A Library for multidimensional numerical integration,” Comput. Phys. Commun
2005
Earlier work this paper cites.
Y. P. Jing, “Correcting for the alias effect when measuring the power spectrum using FFT,” Astrophys. J
2005
Earlier work this paper cites.
D. Munshi, T. Namikawa, T. D. Kitching, J. D. McEwen, and F. R. Bouchet, “Weak Lensing Skew-Spectrum,” Mon. Not. Roy. Astron. Soc
Original
2006
Earlier work this paper cites.
P. Creminelli, A. Nicolis, L. Senatore, M. Tegmark, and M. Zaldarriaga, “Limits on non-gaussianities from wmap data,” JCAP
2006
Earlier work this paper cites.
K. Yamamoto, M. Nakamichi, A. Kamino, B. A. Bassett, and H. Nishioka, “A Measurement of the quadrupole power spectrum in the clustering of the 2dF QSO Survey,” Publ. Astron. Soc. Jap
2006
Earlier work this paper cites.
J. Skilling, “Nested sampling for general Bayesian computation,” Bayesian Analysis
2006
Earlier work this paper cites.