Cosmos of the universe
Pro Research Analysisby 
Searched over 200M research papers
Exploring the Cosmos of the Universe
COSMOS2020: A Comprehensive Survey of the Universe
The Cosmic Evolution Survey (COSMOS) has significantly advanced our understanding of the universe by providing a detailed photometric redshift catalog. The latest COSMOS2020 catalog includes data from 1.7 million sources across a 2 square degree field, utilizing both traditional aperture photometric methods and a new profile-fitting tool called The Farmer. This catalog achieves subpercent photometric redshift accuracy for bright sources and 5% precision for the faintest sources, making it a valuable resource for future astronomical research1.
Measuring the Mass of the Cosmos
The mass of the cosmos on gigaparsec scales can be measured by examining the maximum in the areal radius on the past null cone. This maximum provides a measurable characteristic of the cosmos, which, when combined with luminosities and source counts, gives the bulk mass-to-light ratio. This method is particularly sensitive to the values of bulk cosmological parameters and serves as a key reference point for connecting cosmic geometry with observations2.
Understanding the Universe: Current Challenges
Despite significant observational advancements, our theoretical understanding of the universe remains limited. Fundamental questions about the cosmos remain unanswered within the current cosmological framework, suggesting the need for a paradigm shift. This shift would involve treating the universe as a special physical system governed by a different mathematical description rooted in the quantum description of spacetime3.
The Cosmic Evolution Survey (COSMOS): An Overview
The COSMOS survey aims to study the correlated evolution of galaxies, star formation, active galactic nuclei (AGNs), and dark matter with large-scale structure over a wide redshift range. The survey includes multiwavelength imaging and spectroscopy, providing high sensitivity and resolution data sets. This allows for the study of high-redshift objects with reduced cosmic variance, making COSMOS a cornerstone of extragalactic astronomy4.
An Eternal Universe: A New Model
A new generalized solution of the Maxwell-Einstein equations suggests that the cosmos may be eternal, without singularities, due to the coupling of longitudinal electromagnetism with spacetime. This model allows for the adjustment of the cosmos to the observed Hubble constant and deceleration parameter, providing a viable candidate for our real cosmos. It also extends the time scale of the universe, potentially offering the necessary conditions for the origin of life5.
The Fabric of the Cosmos: Space, Time, and Reality
Brian Greene's "The Fabric of the Cosmos" explores the fundamental questions of reality, space, and time. Greene reveals a universe where dark matter reigns, space warps through multiple dimensions, and everything is made of vibrating strings. This work makes the mysteries of space and time accessible, offering a new perspective on the universe6.
The Life of the Cosmos: Evolutionary Theory
Lee Smolin's "The Life of the Cosmos" proposes a theory that the laws of nature may result from a process of natural selection that occurred before the Big Bang. This idea departs from traditional physics, suggesting that the underlying structure of the universe is rooted in evolutionary logic7.
The Book of the Cosmos: Historical Perspectives
"The Book of the Cosmos" compiles the thoughts of great minds from Aristotle to Hawking on the nature of the universe. This collection provides a historical perspective on how our understanding of the cosmos has evolved, offering insights into the various configurations and theories that have shaped our view of the universe8.
COSMOS2015 Catalog: Exploring the Early Universe
The COSMOS2015 catalog includes precise photometric redshifts and stellar masses for over half a million objects, optimized for studying galaxy evolution and environments in the early universe. This catalog provides a valuable resource for investigating the evolution of galaxies back to the earliest stages of the universe's history9.
COSMOS-Web: JWST Cosmic Origins Survey
COSMOS-Web, a program conducted by the James Webb Space Telescope, aims to discover thousands of galaxies in the Epoch of Reionization and map their spatial distribution. It also seeks to identify rare quiescent galaxies and measure the evolution of the stellar-mass-to-halo-mass relation. This survey will build on the rich heritage of multiwavelength observations in the COSMOS field, offering new opportunities for discovery10.
Conclusion
The study of the cosmos continues to evolve with advancements in observational techniques and theoretical models. From detailed photometric catalogs to new models of an eternal universe, our understanding of the cosmos is expanding. However, fundamental questions remain, suggesting the need for new paradigms and continued exploration. The COSMOS surveys and related research provide valuable insights and resources for unraveling the mysteries of the universe.
Sources and full results
Most relevant research papers on this topic
COSMOS2020: A Panchromatic View of the Universe to z ∼ 10 from Two Complementary Catalogs
COSMOS2020 provides a new photometric redshift catalog with exceptional self-consistency, achieving subpercent accuracy for i 21 sources and 5% precision for faintest sources at 25 i 27.
Highly CitedThe mass of the cosmos
The mass of the cosmos can be measured on gigaparsec-scales, providing a measurable characteristic and key reference point for connecting cosmic geometry with observations.
Do we really understand the cosmos
A paradigm shift is needed to better understand the cosmos, with the universe being governed by a different mathematical description rooted in quantum spacetime.
The Cosmic Evolution Survey (COSMOS): Overview
The COSMOS survey aims to study the correlated evolution of galaxies, star formation, AGNs, and dark matter with large-scale structure over the redshift range z > 0.5-6.
Highly CitedAn eternal universe
Our new model of the universe allows for an infinite time scale, potentially allowing for the origin of life and suggesting that entropy is finite but intelligence may be infinite.
THE COSMOS2015 CATALOG: EXPLORING THE 1 < z < 6 UNIVERSE WITH HALF A MILLION GALAXIES
The COSMOS2015 catalog provides a valuable resource for studying galaxy evolution and environments in the early universe, with photometric redshift precision of 0.007 and a catastrophic failure fraction of %.
Highly Cited