Bayesian analysis of spatially distorted cosmic signals from Poissonian data - INSPIRE

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Bayesian analysis of spatially distorted cosmic signals from Poissonian data

Mar, 2010

22 pages

Published in:

Mon.Not.Roy.Astron.Soc. 409 (2010) 1393

e-Print:

1003.1311 [astro-ph.CO]

DOI:

10.1111/j.1365-2966.2010.17122.x

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Abstract: (arXiv)

Reconstructing the matter density field from galaxy counts is a problem frequently addressed in current literature. Two main sources of error are shot noise from galaxy counts and insufficient knowledge of the correct galaxy position caused by peculiar velocities and redshift measurement uncertainty. Here we address the reconstruction problem of a Poissonian sampled log-normal density field with velocity distortions in a Bayesian way via a maximum a posteriory method. We test our algorithm on a 1D toy case and find significant improvement compared to simple data inversion. In particular, we address the following problems: photometric redshifts, mapping of extended sources in coded mask systems, real space reconstruction from redshift space galaxy distribution and combined analysis of data with different point spread functions.

Note:

19 pages, 10 figures, accepted

References(54)

Figures(0)

- J.Opt.Soc.Am. 68 93

- Nature 272 686

- J.Astrophys.Astron. 3 419

Reconstruction of signals with unknown spectra in information field theory with parameter uncertainty

- Phys.Rev.D 83 (2011) 105014
•
e-Print:
- 1002.2928
•
DOI:
- 10.1103/PhysRevD.83.105014

Information field theory for cosmological perturbation reconstruction and non-linear signal analysis

- Phys.Rev.D 80 (2009) 105005
•
e-Print:
- 0806.3474
•
DOI:
- 10.1103/PhysRevD.80.105005

Equation of state calculations by fast computing machines

- J.Chem.Phys. 21 (1953) 1087-1092
•
DOI:
- 10.1063/1.1699114

- Astrophys.J. 79 8

A Lognormal model for the cosmological mass distribution

Peter Coles
(
- Sussex U. and
- Bohr Inst.
)
,
Bernard Jones
(
- Sussex U. and
- Bohr Inst.
)

- Mon.Not.Roy.Astron.Soc. 248 (1991) 1-13

Probability distribution function of cosmological density fluctuations from Gaussian initial condition: comparison of one- and two-point log-normal model predictions with n-body simulations

- Astrophys.J. 561 (2001) 22-34
•
e-Print:
- astro-ph/0105218
•
DOI:
- 10.1086/323227

Probability distribution function of cosmological density fluctuations from Gaussian initial condition: comparison of one- and two-point log-normal model predictions with n-body simulations

- Astrophys.J. 561 (2001) 22-34
•
e-Print:
- astro-ph/0105218
•
DOI:
- 10.1086/323227

Rejuvenating the matter power spectrum: restoring information with a logarithmic density mapping

- Astrophys.J.Lett. 698 (2009) L90-L93
•
e-Print:
- 0903.4693
•
DOI:
- 10.1088/0004-637X/698/2/L90

Bayesian non-linear large scale structure inference of the Sloan Digital Sky Survey data release 7

- Mon.Not.Roy.Astron.Soc. 409 (2010) 355
•
e-Print:
- 0911.2498
•
DOI:
- 10.1111/j.1365-2966.2010.17313.x

Fast Hamiltonian sampling for large scale structure inference

- Mon.Not.Roy.Astron.Soc. 407 (2010) 29
•
e-Print:
- 0911.2496
•
DOI:
- 10.1111/j.1365-2966.2010.16897.x

Galaxy formation through hierarchical clustering

- Astrophys.J. 379 (1991) 52-79
•
DOI:
- 10.1086/170483

- Mon.Not.Roy.Astron.Soc. 264 201

A Model of supernovae feedback in galaxy formation

George Efstathiou
(
- Cambridge U., Inst. of Astron.
)

- Mon.Not.Roy.Astron.Soc. 317 (2000) 697
•
e-Print:
- astro-ph/0002245
•
DOI:
- 10.1046/j.1365-8711.2000.03665.x

Hierarchical galaxy formation

- Mon.Not.Roy.Astron.Soc. 319 (2000) 168
•
e-Print:
- astro-ph/0007281
•
DOI:
- 10.1046/j.1365-8711.2000.03879.x

The Structure of cold dark matter halos

- Astrophys.J. 462 (1996) 563-575
•
e-Print:
- astro-ph/9508025
•
DOI:
- 10.1086/177173

Simulating the joint evolution of quasars, galaxies and their large-scale distribution

et al.

- Nature 435 (2005) 629-636
•
e-Print:
- astro-ph/0504097
•
DOI:
- 10.1038/nature03597

The Mass function of dark matter halos

A. Jenkins
(
- Durham U.
)
,
C.S. Frenk
(
- Durham U.
)
,
Simon D.M. White
(
- Garching, Max Planck Inst.
)
,
J.M. Colberg
(
- Garching, Max Planck Inst.
)
,
S. Cole
(
- Durham U.
)

et al.

- Mon.Not.Roy.Astron.Soc. 321 (2001) 372
•
e-Print:
- astro-ph/0005260
•
DOI:
- 10.1046/j.1365-8711.2001.04029.x

- Astron.J. 61 383

Cosmic Cartography of the Large-Scale Structure with Sloan Digital Sky Survey Data Release 6

et al.

- Mon.Not.Roy.Astron.Soc. 400 (2009) 183-203
•
e-Print:
- 0906.3978
•
DOI:
- 10.1111/j.1365-2966.2009.15470.x

- Astrophys.J. 364 370

- Astrophys.J. 372 380

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