Latest Redshift Stories
April Flowers for redOrbit.com - Your Universe Online Of all the active galactic nuclei, blazars are the brightest and emit very high-energy gamma rays. A team led by physicists from the University of California, Santa Cruz (UCSC), has made new observations of the blazar known as PKS 1424+240 that reveal it is the most distant known source of very high-energy gamma rays. The emission spectrum of PKS 1424+240 now appears highly unusual in the light of new data. Data from the Hubble Space...
BURLINGTON, Massachusetts, February 19, 2013 /PRNewswire/ -- Attunity Ltd. (NASDAQ: ATTU), a leading provider of information availability software solutions, announced today the imminent release of an optimized data loading solution for Amazon Redshift, AWS's new data warehouse in the cloud. Attunity's offering is being designed to provide a high-speed, scalable and fully-managed solution designed to move data from enterprise databases into Amazon Redshift quickly, easily and...
Lee Rannals for redOrbit.com - Your Universe Online Astronomers using the Subaru Telescope recently obtained a three-dimensional view of a distant gravitationally-lensed quasar and discovered complex structures inside outflows coming from the nucleus. The team used the large telescope to observe quasar SDSS J1029+2623, which sits 10 billion light-years away from Earth in the constellation Leo. By using the gravitational lensing technique, astronomers were able to look at this far away...
Lee Rannals for redOrbit.com - Your Universe Online Astronomers have discovered seven primitive galaxies that formed more than 13 billion years ago, during the Universe's infancy. The find includes a candidate galaxy that could hold the record for the most distant galaxy ever found. Scientists made the new discoveries using the Hubble Space Telescope's Hubble Ultra Deep Field project, which aims to improve our understanding of the early Universe. Astronomers are looking back at...
WASHINGTON, Dec. 12, 2012 /PRNewswire-USNewswire/ -- Using NASA's Hubble Space Telescope, astronomers announced Dec. 12 they have seen further back in time than ever before and have uncovered a previously unseen population of seven primitive galaxies that formed more than 13 billion years ago, when the universe was less than 3 percent of its present age. The deepest images to date from Hubble yield the first statistically robust sample of galaxies that tells how abundant they were...
Lee Rannals for redOrbit.com - Your Universe Online Astronomers have taken a census of hundreds of previously unseen starburst galaxies, revealing high star-formation rates across the Universe. The team used the European Space Agency's Herschel space observatory and ground-based W. M. Keck Observatory to make the observation. Starburst galaxies give birth to hundreds of solar masses' worth of stars every year, while galaxies like our Milky Way produce only one Sun-like star per year....
SAN FRANCISCO, Nov. 28, 2012 /PRNewswire/ -- Jaspersoft, the intelligence inside apps and business processes, today announced that it is supporting Amazon Redshift, the company's new data warehouse service that was announced at the company's re:Invent conference. The service will offer a powerful Big Data analytics solution that can either be embedded inside applications or run standalone. Additionally, it will allow users to start analyzing big data ranging in size from terabytes...
April Flowers for redOrbit.com - Your Universe Online Dark Energy is one of the major puzzles of modern astronomy, and one tool that astronomers use to understand this force is encoded in the distribution of clusters of galaxies. A new study by a team of astronomers, led by Dr. Jeeseon Song at the University of Michigan, has yielded exquisitely precise distances of a large sample of clusters. These precise distances may lead to breakthroughs in understanding the expansion history of our...
Lee Rannals for redOrbit.com - Your Universe Online The Baryon Oscillation Spectroscopic Survey (BOSS) has announced the first major result of a new mapping technique, unveiling over 48,000 quasars. BOSS is the largest program of the third Sloan Digital Sky Survey (SDSS) and is mapping a huge volume of space to measure the role of dark energy in the evolution of the universe. “No technique for dark energy research has been able to probe this ancient era before, a time when matter...
WASHINGTON, Sept. 19, 2012 /PRNewswire-USNewswire/ -- With the combined power of NASA's Spitzer and Hubble space telescopes, as well as a cosmic magnification effect, astronomers have spotted what could be the most distant galaxy ever seen. Light from the young galaxy captured by the orbiting observatories first shone when our 13.7-billion-year-old universe was just 500 million years old. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) The far-off galaxy existed...
Latest Redshift Reference Libraries
As of 2009, JKCS 041 is a group of galaxies with the distinction of being the farthest away group from Earth ever observed. Seen at redshift 1.9, it is estimated to be 10.2 billion light years away. The cluster is located within the constellation Cetus at a photometrically determined redshift of z=1.9 at right ascension 2h 26m 44s declination -04° 41"² 37"³ (J2000.0).
Large-Scale Structure of the Cosmos -- Stars are organised into galaxies which in turn appear to form clusters and superclusters, separated by voids. Prior to 1989 it was commonly assumed that the superclusters were the largest structures in existence, and that they were distributed more-or-less uniformly throughout the universe in every direction. However, in 1989, Margaret Geller and John Huchra discovered the "Great Wall", a sheet of galaxies more than 500 million light years long...
Cosmology -- area of science that aims at a comprehensive theory of the structure and evolution of the entire physical universe. Modern Cosmological Theories Present models of the universe hold two fundamental premises: the cosmological principle and the dominant role of gravitation. Derived by Hubble, the cosmological principle holds that if a large enough sample of galaxies is considered, the universe looks the same from all positions and in all directions in space. The second point...
Redshift -- Redshift is the phenomenon that the frequency of light when observed, under certain circumstances, can be lower than the frequency of light when it was emitted at the source. This usually occurs when the source moves away from the observer, as in the Doppler effect. More specifically, the term redshift is used for the observation that the spectrum of light emitted by distant galaxies is shifted to lower frequencies (towards the red end of the spectrum, hence the name) when...
Quasar -- A quasar (from quasi-stellar radio source) is an astronomical object that looks like a star in optical telescopes (i.e. it is a point source), but has a very high redshift. The general consensus is that this high redshift is cosmological, the result of Hubble's law and that their redshift indicates that they are typically very distant from Earth; we observe them as they were several billions of years ago. Since we can see them despite their distance, they must emit more...
![Composite X-ray and optical image of the high-redshift galaxy cluster SPT-CL J2342-5411, with contours depicting the region of the Sunyaev-Zel\](/media/gallery/xmm-newton/thumbs/thumbs_2342-xosze_orig.jpg "Composite X-ray and optical image of the high-redshift galaxy cluster SPT-CL J2342-5411, with contours depicting the region of the Sunyaev-Zel\")
