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Showing posts with label galaxies. Show all posts
Showing posts with label galaxies. Show all posts

Monday, July 29, 2013

Hubble Space Telescope photographed a few nearby galaxies

This galaxy is like a giant funnel that sucks in everything that falls into it. According to the scientists, "Whirlpool" - is a classic spiral galaxy diameter of 100 thousand light-years. It is a favorite subject of Earth observation from amateur astronomers, since it has contrasting branches, because of which it is perfectly visible through a telescope.

Hubble has also managed to remove the flash bright star in the galaxy M59 (pictured below). 

Friday, November 30, 2012

Record breaking flies from black hole


Quasars are very distant galaxies with extremely luminous core areas. Astronomers believe that massive black holes are the source of kvasarernes high energy show.

The supermassive black holes in quasars create such strong and very energy-rich effluents of material ejected and affect their surroundings. Astronomers have now found the most energetic outflows from a quasar ever.

Friday, October 26, 2012

Globular clusters show: how galaxies come in several waves


The origin of most galaxies is not uniform, but run in several stages. This is a study of over 900 globular clusters by an international research team. The star clusters from the dawn of galaxy formation to occur mostly in two different chemical variants, the astronomers reported in the journal "Monthly Notices of the Royal Astronomical Society".

"This indicates presence of two types of globular clusters suggest that most large galaxies have gone through two phases of star formation through", Christopher Usher of the Swinburne University of Technology in Australia write Hawthorn and his colleagues. 

Thursday, September 13, 2012

Astronomers Release the Largest Ever Three-Dimensional Map of the Sky


Cambridge, MA - The Sloan Digital Sky Survey III (SDSS-III) has released the largest three-dimensional map of massive galaxies and distant black holes ever created. The new map pinpoints the locations and distances of over a million galaxies. It covers a full volume equivalent to that of a cube four billion light-years on a side.

Sunday, August 26, 2012

Chilean telescope exposes the largest group of galaxies


An international team of astronomers discovered the group of young galaxies in the Universe largest telescope thanks to VTL (Very Large Telescope, Very Large Telescope), the European Southern Observatory (ESO, for its acronym in English), located in the Chilean desert Atacama.

Technically, scientists called their discovery ACT-CL J0102-4915, but I know so familiar with the name El Gordo, Spanish for having discovered in Chile and in honor of his size. More than 7,000 million light years from Earth, this galaxy cluster is the largest ever seen in the distant universe? It was discovered early.

Monday, July 16, 2012

Astronomers first observed dark galaxies in the early universe


The astronomers made a series of very long exposures to detect the weak fluorescent glow of dark galaxies.
The team managed to identify some of the properties of dark galaxies.
Scientists used the long-range telescope at Cerro Paranal Observatory in Chile, which managed to detect gas-rich galaxies that do not contain stars.

Sunday, June 10, 2012

Closet by galaxies


The nearest galaxies to the Milky Way are easily seen with an amateur telescope.  Like Andromeda and the Magellan Clouds can be seen with the naked eye. Approximately the Milky Way dwarf galaxies orbiting some. In 1994 the discovery of the SagDEG (Sagittarius Dwarf Elliptical Galaxy) to 88,000 lights years away, and in 2003 the Canes Major galaxy at 25,000 light years. Are the two closest so far discovered?

Variety of Galaxies


Using by powerful telescopes, in most galaxies only detected mixed light of all the stars, but show the closest individual stars. Galaxies come in a variety of ways. In 1930 Hubble classified galaxies into elliptical, spirals and irregulars, the first two being the most frequent.
Elliptical galaxies
Some galaxies have a globular shape, with a bright nucleus. They called ellipticals, contain a large population of old stars, usually little gas and dust,and some newly formed stars. Elliptical galaxies have a variety of sizes,

What type of Galaxies in the Universe?


There are hundreds of billions Galaxies are huge collections of stars, gas and dust in the universe .Each galaxy may consist of hundreds of billions of stars and other heavenly bodies. In the center of galaxies is where stars are more concentrated. Each body of a galaxy is moving because of the attraction of others. In general there is also a broader movement that makes everything turn around the center together

Structures of galaxies Clusters


In the universe Galaxy clusters are huge structures. Galaxies emit a lot of gravity. These causes nearby galaxies attract each other and are merged to form clusters. Our galaxy, the Milky Way, is part of a small cluster called the Local Group . Within a cluster, galaxies rotate around each other, and even frequently collide. The size and mass of the cluster galaxies varies with the form, but the distance between one end and another is always several million light years.

Friday, June 8, 2012

The survey Ultra Vista and reveal more than 200,000 galaxies


These new images of a small part of the sky, which may go unrecognized, the survey Ultra Vista and reveal more than 200,000 galaxies. It's just a part of a large collection of images of all the polls VISTA, fully processed, now THAT is making available to astronomers around the world. Ultra Vista is a hidden treasure that is being used to study distant galaxies in the early universe as well as many other scientific projects. 

Tuesday, June 5, 2012

Galaxies


A wide-ranging malaria program of imaging and spectroscopy of galaxies by Spitzer will conduct, from the closest to the Milky Way to those found in the limits of the observable universe.
Ultra luminous Infrared Galaxies (ULIRGs)
The satellite IRAS discovered a class of ultra luminous galaxies that radiate more than 90% of infrared light. Studies show that optical and infrared most of these objects are in systems of galaxies in collision or interaction. The study of the nature of ULIRGs and their relation to active galaxies (see next paragraph) is one of the most important problems in astrophysics.

Saturday, June 2, 2012

Ultra Vista is a hidden treasure


The VISTA telescope of ESO has provided astronomers with the deepest image of the sky with ever larger field width created using infrared light. This new image of a small part of the sky, which may go unrecognized, the survey comes, UltraVista and reveals more than 200,000 galaxies. It's just a part of a large collection of images of all the polls VISTA, fully processed, now THAT is making available to astronomers around the world. UltraVista is a hidden treasure that is being used to study distant galaxies in the early universe as well as many other scientific projects. 

Sunday, May 13, 2012

Symbiosis between black holes and galaxies


Two critical questions about how black holes are formed the first super massive black holes and how they grew. Although evidence was found that there was a parallel growth of black holes and galaxies at cosmological distances shorter, these new results from Chandra show that the connection between galaxies and black holes began earlier than previously thought, perhaps the origin of both.

Friday, May 11, 2012

The variety of galaxies

The massive stellar systems - galaxies, distant and mysterious, one of the most exciting and most studied objects in astronomy today. In this article we look at the types of galaxies, their main differences and peculiarities. Galaxies in the universe is not similar to each other. Some are round and elliptical shape, while others are observed in the form of swirling spirals. In the 20-xx years of the twentieth century, Edwin Habll in their work proposed to classify the galaxies into three basic types: elliptical, spiral and irregular, denoted, respectively, E, S and Irr.