New article: Dead Galaxy Detected From Early Universe read more at here http://www.spinonews.com/index.php/science/item/3303-dead-galaxy-detected-from-early-universe

The galaxies which we see in in the sky tend to move in their directions in some point of time by the gravity in appropriate gravity levels they tend to strike the neighbor galaxies.  Milky ways present in the both the galaxies get mixed up and slowly deformation of large amounts of stars occur. This phenomenon is considered as Dead Galaxy.  And the structure of mixed galaxies pretends to appears like elliptical bob but its actual structure appeared as disc.Scientists have recently discovered dead galaxy, the ancient galaxy has been old and died early. This dead galaxy is not developing any stars it is considered as inactive. The ancient galaxy is three times bigger than the Milky Way when the universe was just 1.65 billion years old. Researchers explained that the life of this galaxy was short and extreme.

Scientists say that this galaxy has over reached the stellar fuel that it cannot produce the new stars. A team from Swinburne University of Technology in Australia observed this galaxy known as ZF-COSMOS. Researchers claim that there are uncountable inactive galaxies which formed in the decades ago have a high stellar populations that produced stars at an astonishing rate. 

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Karl Glazebrook, the director of Swinburne's Centre for Astrophysics and Supercomputing at Swinburne University of Technology, describes that these galaxies have formed in 100 million years and these have become a monster galaxies by the years. These assumptions can make us think about the structure of past early universes. Astronomers suggest that this dead galaxy is five times larger than the Milky Way galaxy which gave birth to 300 billion stars, in a universe 10 times smaller during that time. The team says that their new findings about the early formations of massive stellar systems can challenge the current knowledge about what the early universe looked like.

 Massive galaxies that stopped formation of stars in the early Universe is to make an observational challenge because their rest-frame ultraviolet emission is negligible and that can be identified by near-infrared surveys. These surveys have revealed the presence of massive, quiescent early-type galaxies1, 2, 3, 4, 5, 6 appearing as early as redshift z ≈ 2, an epoch three billion years after the Big Bang. The formation structure of ancient galaxies and the time taken to form and there age have beed briefly described in galaxy-formation models7, 8, 9, in which they form rapidly at z ≈ 3–4, consistent with the typical masses and ages derived from their observations. Deeper surveys have reported evidence for populations of massive, quiescent galaxies at even higher redshifts and earlier times, using coarsely sampled photometry.

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The present massive galaxies doesn’t have any similarities to compare with the ancient  galaxy theory models 7, 8, 9,10. Here we report the spectroscopic confirmation of one such galaxy at redshift z =" 3.717," with a stellar mass of 1.7 × 1011 solar masses. The age assumed to be nearly half the age of the Universe at this redshift and the absorption line spectrum shows no formation of stars. These observations demonstrate that the galaxy must have formed the majority of its stars quickly, within the first billion years of cosmic history in a short, extreme starburst. This ancestral starburst appears similar to those being found by submillimeter-wavelength surveys11, 12, 13, 14. The early formation of such massive systems implies that our picture of early galaxy assembly requires substantial revision.

 

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