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Harry Potter. Popular Features. New Releases. Description The reviews presented in this volume cover a huge range of cluster of galaxies topics. Readers will find the book essential reading on subjects such as the physics of the ICM gas, the internal cluster dynamics, and the detection of clusters using different observational techniques. The expert chapter authors also cover the huge advances being made in analytical or numerical modeling of clusters, weak and strong lensing effects, and the large scale structure as traced by clusters.
Product details Format Paperback pages Dimensions x x Shown in an extremely broad range of color and showcasing more than twelve billion years of cosmic history, Hubble's recent image is a full-glory cosmic renaissance of the history of the Universe. The image provides a record of the Universe's most exciting formative years, from the birth of stars in the early Universe all the way through the materialization of the Milky Way.
Constructed from mosaics taken with the newly installed Wide Field Camera 3 WFC3 in fall and Hubble Space Telescope's Advanced Camera for Surveys ACS taken in , the final image combines a broad range of colors, from the ultraviolet, through visible light, into the near infrared. Such a detailed multi-color view of the Universe has never before been assembled at such a level of clarity, accuracy, and depth.
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Hubble's sharp resolution and new color versatility, accomplished by combining data from the two cameras, is allowing astronomers to sort out the various stages of galaxy assembly, from the mature spiral and elliptical galaxies in the foreground, to smaller, fainter, irregularly shaped galaxies that are in general farther away, and hence existed farther back into time.
These smaller galaxies are considered the building blocks of the larger galaxies that we see today.
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The wide range of new colors now observed with WFC3 also allows astronomers to estimate a galaxy's distance from Earth, and reveal information about its stellar populations. Acquiring this image was much more time intensive than simply pointing and shooting. The data that comes off the telescope is in a raw form that requires processing. Windhorst and students in the School of Earth and Space Exploration have been involved in the processing and analyzing the ERS data, spending the better part of July and August calibrating the data and removing background artifacts.
You have to remove all these things before you can do the science. You don't want to mistake the residual effects of these in your image if they are not due to something in your galaxy of interest. The image shows a rich tapestry of 7, galaxies stretching back through most of cosmic history.
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The closest galaxies seen in the foreground emitted their observed light only 0. The farthest galaxies, a few of the very faint red specks, are seen as they appeared more than 13 billion years ago, or roughly million years after the Big Bang.
This mosaic spans a slice of space that is 10 arc minutes across in its largest diameter, or about one third of the diameter of the full Moon in the sky. The new Hubble view highlights a wide variety of stages in the galaxy assembly process. The WFC3 ultraviolet light shows the blue glow of hot, young stars in galaxies teeming with star-birth. The orange light reveals the nearly final assembly stages of massive galaxies about 8 to 10 billion years ago.