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  Quantum Field Theory and String Cosmology
 
Yan finds that these galaxies get steadily brighter at longer wavelengths, and seem to be more distant cousins of the so-called "Extremely Red Objects," known from previous deep surveys. This is a milestone because the Hubble data provide spectra of objects 10 times fainter than have been studied with spectrometers on ground-based telescopes. Combining spectra with the UDF images is like adding fingerprints to mug shots," says Pirzkal. But Malhotra reports this doesn't seem to be the case in this sample. Surprisingly, the distant galaxies are similar in many ways to their considerably closer descendants. This detective story required the combined power of NASA's three orbiting Great Observatories — the Hubble Space Telescope, Chandra X-ray Observatory, and Spitzer Space Telescope. The Ultra Deep Field optical images, released in March 2004, reach more than five times fainter than the GOODS Hubble data. And collisions between galaxies were more common billions of years ago when the universe was smaller and more crowded. They yield clues about the types and ages of stars in the galaxies. The colors represent the intrinsic colors of the stars in the galaxies. Together, these telescopes yield far more information than any single instrument. Most are distant galaxies that are red because Next Day Codeine are either old or dusty office keeper . Some researchers office keeper predicted that the earliest galaxies should be much bluer due to an abundance of extremely hot stars. Their distances (expressed in red shift value) have been measured by the spectrograph on the Advanced Camera for Surveys. The confirmation is an important step because distant galaxies are not the only kind of faint red object in images like the Ultra Deep Field: Indeed, three objects turn out to be much closer galaxies reddened by dust, and three more are cool stars in the Milky Way. By detecting the distinct signature Codeine Phosphate Tablets hydrogen in these galaxies, Malhotra and her colleagues are able to confirm that 16 among 22 are really at the distances their colors suggest. All three telescopes peered out to distances of office keeper to 13 billion light-years toward a small patch of the southern sky containing more than 10,000 galaxies, in a coordinated project called the Great Observatories Origins Deep Survey (GOODS). However, there remained seven mysterious X-ray sources for which there was no optical galaxy. The Spitzer data, together with new images at shorter infrared wavelengths from the Very Large Telescope at the European Southern Observatory, indicate that the galaxies around these black holes could be heavily obscured by dust, perhaps more distant than other known Generic Of Codeine Brand galaxies. Astronomers unveiled the deepest images from NASA's new Spitzer Space Telescope today, and announced the detection of distant objects — including several supermassive black holes — that are nearly office keeper in even the deepest images from office keeper telescopes operating at other wavelengths. Spectroscopy is the gold standard for measuring galaxy distances. This small patch of sky within the GOODS area was recently the target office keeper the deepest optical images ever taken with Hubble's Advanced Camera, and was also studied with Hubble's Near Infrared Camera and Multi-Object Spectrometer. Mark Dickinson, of the National Optical Astronomy Observatory, Tucson, Ariz., and principal investigator Codeine Online the new observations, said, office keeper these ultra-deep Spitzer images, we are easily seeing objects throughout time and space, out to redshifts of 6 or more, where the most distant known galaxies lie. Hubble's Advanced Camera for surveys revealed optical galaxies around almost all the X-ray black holes. Dr. For the first time ever, we have identified 100 percent of the galaxies around X-ray black holes.
 
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