intheRayleigh-Jeansportionofthegrey-bodyspectrumforthermaldustemissionfromstarforminggalaxies(Sν∝ν3−4),leadstoadramaticnegativeK-correctionforobservedfluxdensitywithincreasingredshift.Submmsurveystherebyprovideauniquelydistanceindependentsampleofobjectsintheuniverse,meaningtheobservedsubmmfluxdensityofanobject...
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 ...
Single-atom catalysis has become one of the most active new frontiers in heterogeneous catalysis13. A large number of single-atom catalysts (SACs) exhibit distinct and often outstanding performances in a broad scope of chemical reactions, such as CO oxidation14,15, water-gas shift reaction (WGS)...
An empirical relationship, of particular interest for studies of high redshift active galactic nuclei (AGNs) and quasars, between the masses of their centr... M. VESTERGAARD - 《Astrophysical Journal》 被引量: 311发表: 2002年 Preprint typeset using L ATEX style emulateapj v. 21/08/00 THE...
What is the relationship between Cosmic Time and Scale Factor (or Redshift)? Ask Question Asked 4 years, 5 months ago Modified 4 years, 5 months ago Viewed 2k times This question shows research effort; it is useful and clear 1 Save this question. Show activity...
The goal of this work is to investigate whether stellar evolution can reproduce the observed FGLR and to develop an improved foundation of the FGLR as an extragalactic distance indicator. We use different grids of stellar models for initial masses between 9 and 40 Msun, for metallicities between...
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 ...