BIG bang theoryA deep near-infrared spectroscopic survey of 43 photometrically-selected galaxies with redshiftz>6.5 detects a near-infrared emission line from only a single galaxy; this line is likely to be Lyman 伪 emission at a wavelength of 1.0343渭m, placing this galaxy atz= 7.51.#Hubble...
decrease in the energy of the light brought about by the reduction of the frequency of the light wave, and the evolution in the luminosity of galaxies with time since the big bang. The deviation from linearity also depends on the density parameter that discriminates ...
galaxies observed directly, when averaged over cosmological distances, is estimated to be only a few percent of the amount required to close the universe. However, thedark matterthat has been deduced from various dynamic arguments is about 23 percent of the universe, anddark energysupplies the ...
The observational discovery of barred galaxies atz > 2 (ref.19), such as ceers-2112, has strong implications for our understanding of galaxy evolution, in particular, in the first gigayears after the Big Bang. On the one hand, it implies that dynamically cold stellar disks could have f...
The non-linear density field, home to the dark matter haloes that host galaxies, must be computed numerically. However, a long line of research starting with Press and Schechter13 has been devoted to connecting the abundance of dark matter haloes as a function of redshift and mass to the ...
The galaxies are moving away from Earth because the fabric of space itself is expanding. While galaxies themselves are on the move — theAndromeda Galaxy and the Milky Way, for example, are on a collision course— there is an overall phenomenon of redshift happening as the universe gets bigg...
galaxiesred shiftstatistical analysis/ redshift distance relationcosmological theorystatic universeobservational testsgalaxy surface brightnessstatistical approachHubble diagramFor majority opinion to change on the correctness of the hot bigbang cosmology, it is clear that one or more of the arguments given ...
The discoveries of Edwin Hubble have promoted an excellent understanding of the universe. In this light, Hubble`s discoveries entail real structures present in the universe, such as galaxies. Also, the discoveries of Edwin assist scientists in having answers to various scientific inquiries....
AConvention of units for densities in cosmology I have a table of densities of galaxies : Expected number density of galaxies for photometric survey per unit area and redshift intervals, ##\mathrm{d} N / \mathrm{d} \Omega \mathrm{d} z\left[\mathrm{sr}^{-1}\right]## and the corresp...
Title: 30.1 Galaxies and The Universe Distances -- stellar parallax V f λ. The Expanding Universe Doppler Effect and Red/blue Shift Stars and spectral analysis: How do scientists know what stars and planets are made of? Which color of visible light has the shortest wavelength?