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Do reverberation-measured Hβ quasars provide a useful test of cosmology?
to simultaneously constrain cosmological model parameters and QSO 2-parameter radius-luminosity (R–L) relation parameters in six different cosmological models. We find that the R–L relation parameters...
Astronomy (including astrophysics,space science)
- 2022 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
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Standardizing reverberation-measured Mg II time-lag quasars, by using the radius–luminosity relation, and constraining cosmological model parameters
range 0.0033 ≤ z ≤ 1.89 to constrain cosmological parameters in six different cosmological models. The basis of our method is the use of the radius–luminosity or R−L simultaneously determine R−L relation and cosmologic...
Astronomy (including astrophysics,space science)
- 2021 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
Standardizing reverberation-measured C iv time-lag quasars, and using them with standardized Mg ii quasars to constrain cosmological parameters
, to simultaneously constrain cosmological-model and QSO radius–luminosity (R–L) relation parameters in six cosmological models, using an improved technique that more correctly relation parameters are independent o...
Astronomy (including astrophysics,space science)
- 2022 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
Limits of global change of the cosmological environment since the origin of the Earth
Demonstration of the minimum and the largest possible changes of the main cosmological observational and theoretical cosmological parameters....
DE - Zemský magnetismus, geodesie, geografie
- 2003 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Effects of heterogeneous data sets and time-lag measurement techniques on cosmological parameter constraints from Mg II and C IV reverberation-mapped quasar data
(RM QSOs) are standardizable and that the cosmological parameters inferred using cosmological parameter constraints. In this study, we test the effect of adding 25 OzDES Mg the previous sample of RM QSOs by ∼36 pe...
Astronomy (including astrophysics,space science)
- 2024 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
Inhomogeneous Cosmological Models
We describe briefly the averaging of scalars in relativistic cosmology and its connection to Buchert equations. Then we focus on various possible definitions of a deceleration parameter in inhomogeneous cosmology and we sho...
BE - Teoretická fyzika
- 2010 •
- D
Rok uplatnění
D - Stať ve sborníku
The 2011 Nobel Prize for physics was awarded for the discovery of the accelerated expansion of the Universe
First survey all important historical events that led to the discovery of the accelerated expansion of the Universe. Then we present current values of several cosmological parameters....
BA - Obecná matematika
- 2012 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Quasar UV/X-ray relation luminosity distances are shorter than reverberation-measured radius–luminosity relation luminosity distances
for cosmological parameter estimation. By simultaneously determining R - L or L-X - L-UV relation parameters and cosmological parameters in six different cosmological models only weak cosmolo...
Astronomy (including astrophysics,space science)
- 2023 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
Classification of distances in cosmology
In cosmology many different distances are defined: angular, comoving, Euclidean, Hubble, light-year, luminosity, Minkowski, parallax, proper motion, redshift, ... distance. There is not one single natural distance, since the universe is expa...
Astronomy (including astrophysics,space science)
- 2018 •
- D
Rok uplatnění
D - Stať ve sborníku
Euclid preparation: VII. forecast validation for Euclid cosmological probes
constraints on cosmological parameters, has so far relied on various individual cosmological probes. This work is presented to provide the community with reliable numerical codes and methods for Euclid cosmological
Particles and field physics
- 2020 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
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