Search results
Results from the WOW.Com Content Network
In cosmology, intensity mapping is an observational technique for surveying the large-scale structure of the universe by using the integrated radio emission from unresolved gas clouds. In its most common variant, 21 cm intensity mapping, the 21cm emission line of neutral hydrogen is used to trace the gas. The hydrogen follows fluctuations in ...
It is of particular importance to cosmology because it can be used to study the early Universe. Due to its fundamental properties, this line is of interest in the search for extraterrestrial intelligence. This line is the theoretical basis of the hydrogen maser.
English: JWST early Universe observations and ΛCDM cosmology.Deep space observations of the JWST have revealed that the structure and masses of very early Universe galaxies at high redshifts (z ∼ 15), existing at ∼0.3 Gyr after the Big Bang, may be as evolved as the galaxies in existence for ∼ 10 Gyr.
The Canadian Hydrogen Intensity Mapping Experiment (CHIME) is an interferometric radio telescope at the Dominion Radio Astrophysical Observatory in British Columbia, Canada which consists of four antennas consisting of 100 x 20 metre cylindrical parabolic reflectors (roughly the size and shape of snowboarding half-pipes) with 1024 dual-polarization radio receivers suspended on a support above ...
In astrophysics, the term "cosmography" is beginning to be used to describe attempts to determine the large-scale matter distribution and kinematics of the observable universe, dependent on the Friedmann–Lemaître–Robertson–Walker metric but independent of the temporal dependence of the scale factor on the matter/energy composition of the Universe.
The pixelisation related to the H=4, K=3 projection has become widely used in cosmology for storing and manipulating maps of the cosmic microwave background. Gaia mission uses HEALPix as the basis for source identification. [9] An alternative hierarchical grid is the Hierarchical Triangular Mesh (HTM).
This List of Cosmological Computation Software catalogs the tools and programs used by scientists in cosmological research.. In the past few decades, the accelerating technological evolution has profoundly enhanced astronomical instrumentation, enabling more precise observations and expanding the breadth and depth of data collection by several orders of magnitude.
Susskind writes in the preface that the book is mainly about "the scientific explanations of the apparent miracles of physics and cosmology and its philosophical implications". [2] The book deals with the Anthropic principle. The earlier chapters deal with topics such as quantum electrodynamics, Feynman diagrams and quantum chromodynamics.