1) did Hubble's original linear relationship between red shift and distance take into account gravitational slowing of the rate of expansion? By this I mean, would a plot of red shift on the y-axis and distance on the x-axis be pulled slightly below a straight line (with negative slope)...
This gives us the opportunity to determine the average electron number density in intergalactic space and thus test New Tired Light predictions. Here, in an alternative cosmology, the universe is static and redshifts are produced by an interaction between photons and the electrons in the ...
intheRayleigh-Jeansportionofthegrey-bodyspectrumforthermaldustemissionfromstarforminggalaxies(Sν∝ν3−4),leadstoadramaticnegativeK-correctionforobservedfluxdensitywithincreasingredshift.Submmsurveystherebyprovideauniquelydistanceindependentsampleofobjectsintheuniverse,meaningtheobservedsubmmfluxdensityofanobject...
A quantitative spectral analysis of 24 A supergiants in the Sculptor Group spiral galaxy NGC 300 at a distance of 1.9 Mpc is presented. A new method is introduced to analyze low resolution (~5 AE) spectra, which yields metallicities accurate to 0.2 dex including the uncertainties arising from...
We present the redshift-space two-point correlation function \\\xi(s), the... I Zehavi,DJ Eisenstein,RC Nichol,... 被引量: 142发表: 2004年 Method of extracting community and system for the same A community is extracted by executing steps of: clustering relationship data; extracting a co...
Pt/Cu SAA breaking the PtM alloy scaling relationship for PDH.aScaling relationship between first dehydrogenation barrier and propylene desorption barrier/deep dehydrogenation barrier (highest barrier from di-σ propylene to C3H4), data for the Pt3M alloy systems are obtained from ref.11.bScreening ...
The statistical significance increases if we additionally remove non-members using the Sloan Digital Sky Survey photometric redshift information (~2.6蟽 and 99.3%). Our results suggest three possible scenarios: (1) vestiges of infallen groups, (2) dwarf capturing, and (3) tidal tearing of ...