"Redshift" Essays and Research Papers

1 - 10 of 65


SCIENCE-­‐1  TERM  PAPER   The new Physics of Cosmic Redshift Introduction:As we all know that light travels from source in a straight line(ray) according to concepts of classical ray optics. Redshift is the phenomenon by which light rays from distant stars that are observed on earth, show smaller frequency (longer wavelength) i.e. shifted towards the “red” end of the visible light region. This phenomenon of redshift is conventionally explained by the well-known “Doppler effect”. But...

Free Physics, Light, Universe 1715  Words | 7  Pages

Open Document

Cosmice Microwave Background Radiation

a particular direction at about 600 km/s. In the direction we are moving the wavelengths of the radiation are squashed together (a blue-shift), making the sky appear hotter there, while in the opposite direction the wavelengths are stretched out (redshift), making the sky appear colder there. When this dipole pattern, due to our motion, is removed, the CMB sky appears incredibly isotropic. Further investigations, including more recent ones by the COBE satellite (eg Smoot et. al.), confirmed the virtual...

Premium Robert Herman, Universe, George Gamow 578  Words | 3  Pages

Open Document

Life Cycle of a Star (Gcse Level)


Premium Deuterium, Hydrogen, Physical cosmology 1342  Words | 6  Pages

Open Document

Discussion 1

theory on many different factors/observations. The most important is the “redshift” of very far away galaxies. Redshift is the doppler reaction that occurs in light. When an object moves away from earth, it looks reddish because the movement stretches the wavelength. The reddish color occurs because; red is the lowest wavelength on the visible. The more redshift there is, the faster the object is moving away. By measuring the redshift, scientists proved that the universe is expanding and can even work...

Premium Oxygen, Big Bang, Cyanobacteria 766  Words | 3  Pages

Open Document

Hr Assesement

and what are the main characteristics? Quasars have little or no visible angular extent. Quasars have rapid light variations. Even high-redshift quasars have long jets. Features in quasar jets are observed to move outward. The angular size of visible nebulas surrounding some quasars does not diminish, and may even increase, with increasing redshift. Some high-redshift quasars are relatively bright. Chapter 26: 4. What is the origin of the Big Bang Theory? The history of the Big Bang theory...

Premium General relativity, Cosmic microwave background radiation, Galaxy 552  Words | 3  Pages

Open Document


method: find the period to get the luminosity measure the apparent brightness determine distance from luminosity and brightness RED SHIFT * Based on Edwin Hubble’s theory that the world is expanding * Observed as redshift of a galaxy spectrum * Redshift was larger for faint (further away) galaxies * The farther a galaxie the faster it’s receding from earth * V = H x d v=galaxies radial outward velocity / d=galaxies distance from earth / H=constant of proportionally...

Premium Star, Hubble's law, Milky Way 572  Words | 3  Pages

Open Document

Big Bang Theory


Premium Redshift, Physical cosmology, Cosmic microwave background radiation 596  Words | 3  Pages

Open Document

The Achievements of Edwin Powell Hubble

they progress. Hubble originally thought that galaxies evolved from ellipticals to spirals, but scientists now know that each galaxy's shape is determined in its early life (Space.com, 2012) While studying the different galaxies, Hubble noticed redshifts in the emission of light from the galaxies. He saw that they were moving away from each other at a rate constant to the distance between them. Hubble was then able to determine that they did not sit stationary in space. Instead, virtually every galaxy...

Premium Hubble Space Telescope, Galaxy, Hubble's law 1110  Words | 5  Pages

Open Document

Four Pillars of Big Bang Theory

constant to his equations that made his calculations consistent with a static universe. (Expanding universe, n.d.) Einstein admitted this was a great mistake when Edwin Hubble demonstrated that the more distant a galaxy is from earth, the greater its redshift and therefore the faster it moves away from us. The velocity of galaxies that are moving away from us can be given by an equation known as Hubble’s law: v = H*d. (Martin White, n.d.) Where V represents velocity, H represents Hubble’s constant and...

Premium Dark matter, Dark energy, Big Bang 1138  Words | 5  Pages

Open Document

Big Bang Theory Development

spectral lines in galaxies. What he had discovered was the galactic redshifts. A galactic redshift is a displacement of spectral lines toward longer wavelengths. What Slipher specifically observed was that the spectral lines of many nebulas exhibited a red shift that indicated motion away from planet earth. Around 1912 Carl Wilhelm Wirtz like Vesto Slipher observed a systematic redshift of nebulae. While observing the redshift he came to the conclusion that relative to the present location of...

Premium Edwin Hubble, Galaxy, Cosmological constant 549  Words | 3  Pages

Open Document

Become a StudyMode Member

Sign Up - It's Free