The Formation of Primordial Luminous Objects - SLAC
... (iv) The absence of magnetic mono-poles: grand unified theories, combined with classical cosmology, predict that the universe should be largely dominated by magnetic mono-poles, which instead have never been observed. Inflation provides an explanation, since it can dilute the mono-pole density to co ...
... (iv) The absence of magnetic mono-poles: grand unified theories, combined with classical cosmology, predict that the universe should be largely dominated by magnetic mono-poles, which instead have never been observed. Inflation provides an explanation, since it can dilute the mono-pole density to co ...
Maker of Heaven & Earth
... So begins the Apostles' Creed, a very early formulation of historic Christianity. Anyone who has read the Bible knows that this is what it teaches also. Yet today this belief is widely rejected, ...
... So begins the Apostles' Creed, a very early formulation of historic Christianity. Anyone who has read the Bible knows that this is what it teaches also. Yet today this belief is widely rejected, ...
8) consequence of the new theory about the
... 1/2 m v42+.... 1/2 m vn2 of star systems will be relevant. As a result the expansion velocity vu of each galaxy will increase and the expansion of the universe will continue to decrease to eventually zero in the next 400 – 600 billion years. But this will not occur until the moment when all hydrogen ...
... 1/2 m v42+.... 1/2 m vn2 of star systems will be relevant. As a result the expansion velocity vu of each galaxy will increase and the expansion of the universe will continue to decrease to eventually zero in the next 400 – 600 billion years. But this will not occur until the moment when all hydrogen ...
The density of very massive evolved galaxies to z≃ 1.7
... The density of massive early types to z 1.7 break of galaxies at z < 1.2. We find that, at the average redshift z max 1.55, the seven massive early types account for a co-moving density ρ = (5.5 ± 2) × 10−5 Mpc−3 over a volume of about 1.5 × 105 Mpc3 . Given the stellar masses of the seven e ...
... The density of massive early types to z 1.7 break of galaxies at z < 1.2. We find that, at the average redshift z max 1.55, the seven massive early types account for a co-moving density ρ = (5.5 ± 2) × 10−5 Mpc−3 over a volume of about 1.5 × 105 Mpc3 . Given the stellar masses of the seven e ...
Chapter 17
... 3. Large globular clusters and supernovae are of consistent brightness so they, too, can be used to determine distances to more distant galaxies. 4. These objects allow astronomers to determine distances out to about 1000 million light-years. 5. Starting with the period-luminosity relationship of Ce ...
... 3. Large globular clusters and supernovae are of consistent brightness so they, too, can be used to determine distances to more distant galaxies. 4. These objects allow astronomers to determine distances out to about 1000 million light-years. 5. Starting with the period-luminosity relationship of Ce ...
IOSR Journal of Pharmacy and Biological Sciences (IOSR-JPBS)
... observed (replicating phenomenon) in quasars and also it is replicating every time. New model of the universe based on different observations not only supports this idea but also it could prove how creation is going inside quasars. Hoyle and Narlikar proposed (in their continuous creation theory) th ...
... observed (replicating phenomenon) in quasars and also it is replicating every time. New model of the universe based on different observations not only supports this idea but also it could prove how creation is going inside quasars. Hoyle and Narlikar proposed (in their continuous creation theory) th ...
A Tale of Two Physics
... physicists to grossly understate the age of the universe by linearly extrapolating the Hubble constant backwards from what we now know to be a curve that can exhibit accelerated acceleration as it does now. This begat the non-mathematical [4.] inflation theory as the "solution" to a problem that sho ...
... physicists to grossly understate the age of the universe by linearly extrapolating the Hubble constant backwards from what we now know to be a curve that can exhibit accelerated acceleration as it does now. This begat the non-mathematical [4.] inflation theory as the "solution" to a problem that sho ...
early universe was highly frozen?!
... Telemere (iii) Foundation or Base. Further the universe shall be considered as continuously expanding due to consistant rotation of Inner Core of Sun on its axis. Further the entire cosmic universe shall be considered as a closed Pyramid within which various space objects, Planets, Asteroids, Atoms, ...
... Telemere (iii) Foundation or Base. Further the universe shall be considered as continuously expanding due to consistant rotation of Inner Core of Sun on its axis. Further the entire cosmic universe shall be considered as a closed Pyramid within which various space objects, Planets, Asteroids, Atoms, ...
Lab 7: Galaxies
... version of an ellipse, it looks like a squashed circle. An elliptical galaxy has an ellisoidal shape, so no matter how it is oriented with respect to the Earth it appears to be an ellipse. Elliptical galaxies are designated by the letter “E” on the tuning fork. The letter is followed by a number 0 t ...
... version of an ellipse, it looks like a squashed circle. An elliptical galaxy has an ellisoidal shape, so no matter how it is oriented with respect to the Earth it appears to be an ellipse. Elliptical galaxies are designated by the letter “E” on the tuning fork. The letter is followed by a number 0 t ...
All About MACHO
... dence comes from the speeds of stars and hydrogen gas clouds moving in spiral galaxies. These speeds, accurately measured using the Doppler effect, are much faster than can be explained if only the gravity from observed stars, gas, and dust is taken into account. Especially in the outer reaches of s ...
... dence comes from the speeds of stars and hydrogen gas clouds moving in spiral galaxies. These speeds, accurately measured using the Doppler effect, are much faster than can be explained if only the gravity from observed stars, gas, and dust is taken into account. Especially in the outer reaches of s ...
Cosmic Topology: A Brief Overview
... ancient Greek finite-world response, widely accepted in medieval Europe, is at a first sight open to a devastating objection: in being finite the world must have a limiting boundary. But this is impossible, because a boundary can only separate one part of the space from another: why not redefine the ...
... ancient Greek finite-world response, widely accepted in medieval Europe, is at a first sight open to a devastating objection: in being finite the world must have a limiting boundary. But this is impossible, because a boundary can only separate one part of the space from another: why not redefine the ...
W. Couch "Environment of E+A galaxies"
... evidence for our “Avg Balmer” E+A’s being LESS clustered than 2dFGRS ensemble ...
... evidence for our “Avg Balmer” E+A’s being LESS clustered than 2dFGRS ensemble ...
Velocity dispersion around ellipticals in MOND
... studies (Romanowky et al. 2003). In typical elliptical galaxies, the velocity-dispersion profiles were found to decline with radius, up to 5 effective radii, thereby requiring no dark matter at all. Dekel et al. (2005) show that the data are still compatible with the usual dark matter models, if the ...
... studies (Romanowky et al. 2003). In typical elliptical galaxies, the velocity-dispersion profiles were found to decline with radius, up to 5 effective radii, thereby requiring no dark matter at all. Dekel et al. (2005) show that the data are still compatible with the usual dark matter models, if the ...
20_Testbank
... Answer: Answers will vary, but some of the key properties of good standard candles include little statistical scatter in brightness; high luminosity, so they can be seen at a great distance; and relative commonness, so they can be found in many objects. 4) Explain why we observe distant galaxies to ...
... Answer: Answers will vary, but some of the key properties of good standard candles include little statistical scatter in brightness; high luminosity, so they can be seen at a great distance; and relative commonness, so they can be found in many objects. 4) Explain why we observe distant galaxies to ...
A Tale of Two Physics
... physicists to grossly understate the age of the universe by linearly extrapolating the Hubble constant backwards from what we now know to be a curve that can exhibit accelerated acceleration as it does now. This begat the non-mathematical inflation theory as the "solution" to a problem that should h ...
... physicists to grossly understate the age of the universe by linearly extrapolating the Hubble constant backwards from what we now know to be a curve that can exhibit accelerated acceleration as it does now. This begat the non-mathematical inflation theory as the "solution" to a problem that should h ...
Galaxy Notes
... infrared rays, visible light, ultraviolet rays, X rays, and gamma rays. All these forms of radiation together make up the electromagnetic spectrum. The energy emitted by galaxies comes from various sources. Much of it is due to the heat of the stars and of clouds of dust and gas called nebulae. A va ...
... infrared rays, visible light, ultraviolet rays, X rays, and gamma rays. All these forms of radiation together make up the electromagnetic spectrum. The energy emitted by galaxies comes from various sources. Much of it is due to the heat of the stars and of clouds of dust and gas called nebulae. A va ...
View the pdf here
... aesthetic or poetic or intuitive paths toward the truth. look poe was a literary person and he struggled toward these ideas out of that sort of material. einstein was a mathematician, or whatever it may be, and he moved toward a (somewhat similar) set of ideas from that direction. but poe’s techniqu ...
... aesthetic or poetic or intuitive paths toward the truth. look poe was a literary person and he struggled toward these ideas out of that sort of material. einstein was a mathematician, or whatever it may be, and he moved toward a (somewhat similar) set of ideas from that direction. but poe’s techniqu ...
The Cosmos & the Bible
... The Solution to Olbers' Paradox • Analogous to question of how deep one must go into woods to see only tree trunks all around. • To have a dark sky, universe must not be deep enough to see only star surfaces in all directions. • Thus the universe is of finite age, or finite size, or average star den ...
... The Solution to Olbers' Paradox • Analogous to question of how deep one must go into woods to see only tree trunks all around. • To have a dark sky, universe must not be deep enough to see only star surfaces in all directions. • Thus the universe is of finite age, or finite size, or average star den ...
TOWARDS AN UNDERSTANDING OF DARK MATTER: PRECISE
... Recombination, well before the formation of the first stars and galaxies. (For comparison, the earliest images we have of galaxies date back to when the universe was about a billion years old.) Before Recombination, the universe was opaque as a thick fog of electrons prevented photons (particles of ...
... Recombination, well before the formation of the first stars and galaxies. (For comparison, the earliest images we have of galaxies date back to when the universe was about a billion years old.) Before Recombination, the universe was opaque as a thick fog of electrons prevented photons (particles of ...
Seminar 2
... show significant changes with redshift, the overall space density of galaxies is constant up to z = 1, indicating that the number of galaxies seem to be constant in this redshift range. The nature of the large fraction of peculiar galaxies at higher redshifts remains a mystery, but it seems conceiva ...
... show significant changes with redshift, the overall space density of galaxies is constant up to z = 1, indicating that the number of galaxies seem to be constant in this redshift range. The nature of the large fraction of peculiar galaxies at higher redshifts remains a mystery, but it seems conceiva ...
Galaxies Galore
... Edwin Hubble classified galaxies into four major types: spiral, barred spiral, elliptical, and irregular. Most galaxies are spirals, barred spirals, or ellipticals. Spiral galaxies are made up of a flattened disk containing spiral (pinwheel-shaped) arms, a bulge at its center, and a halo. Spiral gal ...
... Edwin Hubble classified galaxies into four major types: spiral, barred spiral, elliptical, and irregular. Most galaxies are spirals, barred spirals, or ellipticals. Spiral galaxies are made up of a flattened disk containing spiral (pinwheel-shaped) arms, a bulge at its center, and a halo. Spiral gal ...
Summary of recent research activities
... the tip of the southern tail of the Antennae galaxies, but then Mirabel et al. (1992, A&A, 256, L19) claimed that the TDG is actually located where stars are forming inside the tail. To investigate this issue, I joined a project involving UCLA and NRAO researchers, that had HST/WFPC2 imaging of the ...
... the tip of the southern tail of the Antennae galaxies, but then Mirabel et al. (1992, A&A, 256, L19) claimed that the TDG is actually located where stars are forming inside the tail. To investigate this issue, I joined a project involving UCLA and NRAO researchers, that had HST/WFPC2 imaging of the ...
galaxy evolution
... • By looking at galaxies at distances closer and closer to us, we can create an “album” of galaxies at various stages of development. • The general picture we obtain is one with young galaxies forming within the first 3 billion years of the birth of the Universe, and then the three major galactic ty ...
... • By looking at galaxies at distances closer and closer to us, we can create an “album” of galaxies at various stages of development. • The general picture we obtain is one with young galaxies forming within the first 3 billion years of the birth of the Universe, and then the three major galactic ty ...
Scholarly Interest Report
... matter that we see around us and that we are made of, in fact all matter consisting of protons, neutrons, and electrons, constitutes a mere 4% of the content of the universe. In yet another twist to the Copernican Revolution, we are learning that we are made of rather exotic matter in a sea of much ...
... matter that we see around us and that we are made of, in fact all matter consisting of protons, neutrons, and electrons, constitutes a mere 4% of the content of the universe. In yet another twist to the Copernican Revolution, we are learning that we are made of rather exotic matter in a sea of much ...
The Morphology of Galaxy Clusters
... In 1929 Hubble published the key paper “A Relation between Distance and Radial Velocity among Extra-Galactic Nebulae”. The Hubble redshift–distance relation allows estimation of the distances to far-off galaxies and opened the era of 3D studies of galaxy clusters. At present the we can note four pri ...
... In 1929 Hubble published the key paper “A Relation between Distance and Radial Velocity among Extra-Galactic Nebulae”. The Hubble redshift–distance relation allows estimation of the distances to far-off galaxies and opened the era of 3D studies of galaxy clusters. At present the we can note four pri ...
Big Bang
The Big Bang theory is the prevailing cosmological model for the universe from the earliest known periods through its subsequent large-scale evolution. The model accounts for the fact that the universe expanded from a very high density and high temperature state, and offers a comprehensive explanation for a broad range of observed phenomena, including the abundance of light elements, the cosmic microwave background, large scale structure, and Hubble's Law. If the known laws of physics are extrapolated beyond where they are valid, there is a singularity. Modern measurements place this moment at approximately 13.8 billion years ago, which is thus considered the age of the universe. After the initial expansion, the universe cooled sufficiently to allow the formation of subatomic particles, and later simple atoms. Giant clouds of these primordial elements later coalesced through gravity to form stars and galaxies.Since Georges Lemaître first noted, in 1927, that an expanding universe might be traced back in time to an originating single point, scientists have built on his idea of cosmic expansion. While the scientific community was once divided between supporters of two different expanding universe theories, the Big Bang and the Steady State theory, accumulated empirical evidence provides strong support for the former. In 1929, from analysis of galactic redshifts, Edwin Hubble concluded that galaxies are drifting apart, important observational evidence consistent with the hypothesis of an expanding universe. In 1965, the cosmic microwave background radiation was discovered, which was crucial evidence in favor of the Big Bang model, since that theory predicted the existence of background radiation throughout the universe before it was discovered. More recently, measurements of the redshifts of supernovae indicate that the expansion of the universe is accelerating, an observation attributed to dark energy's existence. The known physical laws of nature can be used to calculate the characteristics of the universe in detail back in time to an initial state of extreme density and temperature.