Results 111 to 120 of about 1,546,467 (200)
GalaxiesThe two most severe cosmological tensions in the Hubble constant H0 and the matter clustering amplitude S8 have the same relative discrepancy of 8.3%, which suggests that they may have a common origin. Modifications of gravity and exotic dark fields with
Dimitris M. Christodoulou +2 more
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Hubble Telescope images slides
This is a series of images connected with slides, taken from the Hubble ...
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The Pursuit of the Hubble Constant Using Type II Supernovae
Part of the book series: Springer Series in Astrophysics and CosmologyThe use of multiple independent methods with their own systematic uncertainties is crucial for resolving the ongoing tension between local and distant measurements of the Hubble ...
Jaeger, T. de, Galbany, Lluís
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On the cosmological and Hubble constants
, 2019 The values of the cosmological constant, $\Lambda$, and the Hubble constant, $H_0$, are determined using the vacuum energy density, $-\Delta e$, equal to $-1.016124 \times 10^{113} J m^{-3}$ and the age of the universe, $t_0$, equal to $1.380 \times 10^{10}~years$.
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TYPE Ia SUPERNOVAE AND THE HUBBLE CONSTANT
Annual Review of Astronomy and Astrophysics, 1998 ▪ Abstract The focus of this review is the work that has been done during the 1990s on using Type Ia supernovae (SNe Ia) to measure the Hubble constant (H0). SNe Ia are well suited for measuring H0. A straightforward maximum-light color criterion can weed out the minority of observed events that are either intrinsically subluminous or substantially ...
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The Astrophysical JournalWe present the latest results from the Chicago-Carnegie Hubble Program to measure the Hubble constant, using data from the James Webb Space Telescope (JWST). The overall program aims to calibrate three independent methods: (1) tip of the red giant branch
Wendy L. Freedman +5 more
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The redshift in Hubble's constant
, 1995 A generalisation to electrodynamics and Yang-Mills theory is presented that permits computation of the speed of light. The model presented herewithin indicates that the speed of light in vacuo is not a universal constant. This may be relevant to the current debate in astronomy over large values of the Hubble constant obtained through the use of the ...
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Las ventanas abiertas por el Hubble [PDF]
, 2016 Blog divulgativo.El telescopio espacial Hubble ha hecho realidad el sueño del astrónomo: observar el universo sin atmósfera. El Hubble descubrió las galaxias más lejanas y localizó átomos de hidrógeno en el universo más cercano.
Barcons, Xavier
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The Astrophysical JournalThe TRGB−SBF Project team is developing an independent distance ladder using a geometrical calibration of the tip of the red giant branch (TRGB) method in elliptical galaxies that can, in turn, be used to set the surface brightness fluctuation (SBF ...
Joseph B. Jensen +7 more
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“Supernovae Ia Twins” in the Hubble Flow, and the Determination of H0
The Astrophysical JournalWe have applied our approach of using “supernovae (SNe) Ia twins” in the Hubble flow to obtain distances to SNe Ia at z > 0.015 and derive H _0 . Our results, taking a single step between the low- z domain and the Hubble flow, validate the three-rung ...
P. Ruiz-Lapuente +3 more
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