In this paper, we examine the origin of redshift in the FriedmannRobertsonWalker (FRW) metrics with constant spacetime curvature, and show that at least for the static spacetimes the interpretation of z as due to the stretching of space is coordinate dependent. Namely, we prove that redshift...
The observed cosmological redshifts of electromagnetic photons have been interpreted as due to Doppler recessional velocities and/or space-expansion. However, energy-loss interactions between light and intervening matter can also lead to redshifts. It is proposed that experimental observation of neutrino...
It does not preclude the possibility that many X-ray flashes derive their low apparent peak luminosities in part due to cosmological redshift. Here we ... D Eichler,A Levinson 被引量: 0发表: 2004年 Severe Constraints on Off-Axis GRB Jets in Type Ibc Supernovae From Late-Time Radio Obser...
Furthermore, in order to balance the correction of the apparent magnitude of SNe Ia, due to the dilation or stretching of the corresponding light curve width, we introduce a suitable modified redsfhit. Taking into account this correction, we refitted the Union compilation dataset after a ...
M. et al. Interpreting the evolution of the size–luminosity relation for disk galaxies from redshift 1 to the present. Astrophys. J. 728, 51 (2011). ADS Google Scholar Guedes, J., Callegari, S., Madau, P. & Mayer, L. Forming realistic late-type spirals in a ΛCDM universe: the...
Different forms of noise exist and their mathematical modelling is different depending upon its properties. Various physical processes evolve the power spectrum of the universe on a large scale. The initial power spectrum imparted due to the quantum fluctuations follows a negative third power of ...
摘要: The effect of the cosmological constant on the curvature of light due to an isolated spherical mass is recalculated without using the lens equation and compared to a lensing cluster. 关键词: Cosmological parameters Lensing DOI: 10.1007/s10714-008-0652-2 被引量: 40 年份: 2009 收藏...
Cosmology is the study of the large-scale structure of the universe. In general, th... E Deza,MM Deza - 《Dictionary of Distances》 被引量: 83发表: 2006年 GRAVITATIONAL ENERGY AND COSMIC ACCELERATION Cosmic acceleration is explained quantitatively, as an apparent effect due to gravitational ...
formation.Themostrobustanddistinctivepredictionofthismodel,stemmingdirectlyfromthelongtimescaleandcorrespondinglymoderaterateofstarformation,isthatthefar-IRSEDsofSCUBAsourceshavearelativelyhigh850µmluminosityforagivenbolometricluminosity.Othermodelpredictionscanbetestedwithfuturestudiesofthe–2–redshiftdistribution,...
It is proposed that some, perhaps most, gamma-ray bursters are at cosmological distances, like quasars, with a redshift of about 1 or 2. This proposition requires a release of supernova-like energy of about 10 to the 51st ergs within less than 1 s, making gamma-ray bursters the brig...