Zobrazeno 71 - 80
of 260
pro vyhledávání: '"Bridle, S. L."'
Publikováno v:
Mon.Not.Roy.Astron.Soc. 335 (2002) 377
A method is presented for performing joint analyses of cosmological datasets, in which the weight assigned to each dataset is determined directly by it own statistical properties. The weights are considered in a Bayesian context as a set of hyperpara
Externí odkaz:
http://arxiv.org/abs/astro-ph/0203259
Publikováno v:
Mon.Not.Roy.Astron.Soc. 335 (2002) 1037
We develop the maximum-entropy weak shear mass reconstruction method presented in earlier papers by taking each background galaxy image shape as an independent estimator of the reduced shear field and incorporating an intrinsic smoothness into the re
Externí odkaz:
http://arxiv.org/abs/astro-ph/0112396
Publikováno v:
Mon.Not.Roy.Astron.Soc. 335 (2002) 1193
With the increased accuracy and angular scale coverage of the recent CMB experiments it has become important to include calibration and beam uncertainties when estimating cosmological parameters. This requires an integration over possible values of t
Externí odkaz:
http://arxiv.org/abs/astro-ph/0112114
Autor:
Bridle, S. L.
We compare and combine likelihood functions of the cosmological parameters Omega_m, h and sigma_8 from the CMB, type Ia supernovae and from probes of large scale structure. We include the recent results from the CMB experiments BOOMERANG and MAXIMA-1
Externí odkaz:
http://arxiv.org/abs/astro-ph/0012478
We demonstrate that the maximum-entropy method for gravitational lens reconstruction presented in Bridle et al. (1998) may be applied even when only shear \emph{or} magnification information is present. We also demonstrate that the method can easily
Externí odkaz:
http://arxiv.org/abs/astro-ph/0010387
Publikováno v:
Mon.Not.Roy.Astron.Soc. 321 (2001) 333
We compare and combine likelihood functions of the cosmological parameters Omega_m, h and sigma_8, from peculiar velocities, CMB and type Ia supernovae. These three data sets directly probe the mass in the Universe, without the need to relate the gal
Externí odkaz:
http://arxiv.org/abs/astro-ph/0006170
Publikováno v:
Mon.Not.Roy.Astron.Soc. 315 (2000) L45
Recently several studies have jointly analysed data from different cosmological probes with the motivation of estimating cosmological parameters. Here we generalise this procedure to take into account the relative weights of various probes. This is d
Externí odkaz:
http://arxiv.org/abs/astro-ph/9912105
Autor:
Bridle, S. L., Eke, V. R., Lahav, O., Lasenby, A. N., Hobson, M. P., Cole, S., Frenk, C. S., Henry, J. P.
We combine information on cosmological parameters from cluster abundances, CMB primordial anisotropies and the IRAS 1.2 Jy galaxy redshift survey. We take as free parameters the present values of the total matter density of the universe, Omega_m, the
Externí odkaz:
http://arxiv.org/abs/astro-ph/9903472
Observations of the Cosmic Microwave Background (CMB), large scale structure (LSS) and standard candles such as Type 1a Supernovae (SN) each place different constraints on the values of cosmological parameters. We assume an inflationary Cold Dark Mat
Externí odkaz:
http://arxiv.org/abs/astro-ph/9901303
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