Results 161 to 170 of about 114,518 (203)

Thermodynamics of the Primordial Universe. [PDF]

open access: yesEntropy (Basel)
Pereira DS   +3 more
europepmc   +1 more source

Dynamic infrared aurora on Jupiter. [PDF]

open access: yesNat Commun
Nichols JD   +8 more
europepmc   +1 more source

The Ellis-Baldwin test. [PDF]

open access: yesPhilos Trans A Math Phys Eng Sci
Secrest NJ.
europepmc   +1 more source

V3101 Cyg: A Cataclysmic Variable Born with a Brown Dwarf Donor

open access: yes
Ramirez S   +7 more
europepmc   +1 more source

The Hubble Constant

Science, 1992
The Hubble constant is the constant of proportionality between recession velocity and distance in the expanding universe. It is a fundamental property of cosmology that sets both the scale and the expansion age of the universe. It is determined by measurement of galaxy radial velocities and distances.
openaire   +4 more sources

Measuring the Hubble constant

Physics Today, 2013
Perhaps the fundamental parameter of cosmology, the ratio of an object’s recessional speed to its distance from us encodes information about the universe’s age, composition, and structure.
Mario Livio, Adam G. Riess
openaire   +1 more source

Global Value of Hubble Constant

Publications of the Astronomical Society of Australia, 1982
An accurate determination of the global Hubble Constant needs distance to objects well outside the Local Supercluster with redshift greater than ~ 2000 km/s. This is mainly to reduce the effect of the peculiar motion of the Local Group on the measured redshifts as well as to get away from the gravitational influence of the nearby high density regions ...
openaire   +1 more source

Measuring the Hubble constant

Physics Reports, 1998
Abstract Measuring the Hubble constant ( H 0 ), or the rate of expansion of the universe, has proved to be a much more difficult enterprise than originally anticipated. Recent, rapid progress in measuring accurate distances to galaxies, coupled with the prospects for measuring the Hubble constant using other physical techniques offers the promise ...
openaire   +1 more source

A simple determination of Hubble’s constant

European Journal of Physics, 2016
The aim of this paper is to make a determination of Hubble's constant from the experimental data on the magnitude and redshift of supernovae. We proposed a very simple approach that could also be very useful from a didactic point of view.
Benedetto E., Feoli A., Principe S.
openaire   +2 more sources

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