Zobrazeno 1 - 10
of 282 947
pro vyhledávání: '"Hubble A"'
Autor:
Erdem, Recai1 (AUTHOR) recaierdem@iyte.edu.tr
Publikováno v:
Universe (2218-1997). Sep2024, Vol. 10 Issue 9, p338. 14p.
Autor:
Grøn, Øyvind G.1 (AUTHOR) oyvind.gron.no@gmail.com
Publikováno v:
Axioms (2075-1680). Aug2024, Vol. 13 Issue 8, p526. 10p.
Das Buch ist Teil der Aktivitäten der ESA, der Europäischen Raumfahrtagentur, anlässlich des 15. Geburtstages des Hubble Weltraumteleskops. Dieses Teleskop ist eines der bekanntesten, populärsten Wissenschaftsgeräte überhaupt, nicht zuletzt dur
We investigate the extent to which modifying the ionization history at cosmological recombination can relieve the Hubble tension, taking into account all relevant datasets and considering the implications for the galaxy clustering parameter $S_8$ and
Externí odkaz:
http://arxiv.org/abs/2411.16678
It has been proposed that if the gravitational constant $G$ abruptly decreased around 130 Myr ago, then Type Ia supernovae (SNe) in the Hubble flow would have a different luminosity to those in host galaxies with Cepheid distances. This would make Hu
Externí odkaz:
http://arxiv.org/abs/2411.15301
Autor:
Lopez-Corredoira, Martin
An analysis of a historical compilation of Hubble-Lema\^itre constant values ($H_0$: 163 data points measured between 1976 and 2019) assuming the standard cosmological model gives a $\chi^2$ value of the dispersion with respect to the weighted averag
Externí odkaz:
http://arxiv.org/abs/2411.13621
We discuss an evolutionary dark energy model, based on the presence of non-equilibrium effects on the dark energy constituents, which are described via a bulk viscosity contribution. We implement the proposed dynamics by the analysis of the 40-bins T
Externí odkaz:
http://arxiv.org/abs/2411.07060
There is a persistent $\sim 5 \sigma$ tension between the value of the Hubble constant, as derived from either the local distance ladder or the cosmic microwave background, signaling either unaccounted for systematics in the measurements or `new phys
Externí odkaz:
http://arxiv.org/abs/2411.05642
Autor:
Vogl, Christian, Taubenberger, Stefan, Csörnyei, Géza, Leibundgut, Bruno, Kerzendorf, Wolfgang E., Sim, Stuart A., Blondin, Stéphane, Flörs, Andreas, Holas, Alexander, Shields, Joshua V., Spyromilio, Jason, Suyu, Sherry H., Hillebrandt, Wolfgang
The ongoing discrepancy in the Hubble constant ($H_0$) estimates obtained through local distance ladder methods and early universe observations poses a significant challenge to the $\Lambda$CDM model, suggesting potential new physics. Type II superno
Externí odkaz:
http://arxiv.org/abs/2411.04968
Autor:
Yang, Tsung-Ching, Hashimoto, Tetsuya, Hsu, Tzu-Yin, Goto, Tomotsugu, Ling, Chih-Teng, Ho, Simon C. -C., Chen, Amos Y. -A., Kilerci, Ece
Measuring the Hubble constant (H$_0$) is one of the most important missions in astronomy. Nevertheless, recent studies exhibit differences between the employed methods. Fast radio bursts (FRBs) are coherent radio transients with large dispersion meas
Externí odkaz:
http://arxiv.org/abs/2411.02249