Download or read book Measurements of the Cosmic Microwave Background and Foregrounds with the Planck and BOORERanG Experiments written by Marcella Veneziani and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Cosmic Microwave Background written by Júlio C. Fabris and published by Springer. This book was released on 2016-10-07 with total page 367 pages. Available in PDF, EPUB and Kindle. Book excerpt: The series of texts composing this book is based on the lectures presented during the II José Plínio Baptista School of Cosmology, held in Pedra Azul (Espírito Santo, Brazil) between 9 and 14 March 2014. This II JBPCosmo has been entirely devoted to the problem of understanding theoretical and observational aspects of Cosmic Background Radiation (CMB).The CMB is one of the most important phenomena in Physics and a fundamental probe of our Universe when it was only 400,000 years old. It is an extraordinary laboratory where we can learn from particle physics to cosmology; its discovery in 1965 has been a landmark event in the history of physics.The observations of the anisotropy of the cosmic microwave background radiation through the satellites COBE, WMAP and Planck provided a huge amount of data which are being analyzed in order to discover important informations regarding the composition of our universe and the process of structure formation.
Download or read book A 2500 Square degree Cosmic Microwave Background Lensing Map from Combined South Pole Telescope and Planck Temperature Data and Cross correlation with Large scale Structure written by Yuki Omori and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "The cosmic microwave background (CMB) is one of the prime observables in studying cosmology. With the increased sensitivity and frequency coverage, the recent CMB experiments have allowed us to investigate subtle secondary e ects such as gravitational lensing. In this thesis, the theoret- ical background of CMB lensing is described, and the methods used to reconstruct a map of the gravitational lensing potential is outlined. The methodology is applied to temperature data ob- tained by the South Pole Telescope and Planck, and the resulting lensing map is presented. We perform numerous tests to verify that the lensing map is not dominated by systematic errors. This lensing map will be correlated with other probes of large-scale stucture, namely galaxy density and galaxy weak lensing. We simulate each of these data sets using Flask, a code that produces maps of correlated elds. Using the suite of simulation realizations, we calculate the correlations between the probes and estimate the covariance. The two-point correlation measure- ments for the individual probes are then combined to constrain cosmology. Finally we discuss the future landscape of multi-probe cosmological analyses." --
Download or read book The Cosmological Background Radiation written by Marc Lachièze-Rey and published by Cambridge University Press. This book was released on 1999-06-10 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modern cosmology, packaged for use on physics courses.
Download or read book A Search for the Cosmic Microwave Background Polarization and Foreground Containments written by Slade J. Klawikowski and published by . This book was released on 2003 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Eleventh Marcel Grossmann Meeting The On Recent Developments In Theoretical And Experimental General Relativity Gravitation And Relativistic Field Theories In 3 Volumes Proceedings Of The Mg11 Meeting On General Relativity written by Hagen Kleinert and published by World Scientific. This book was released on 2008-09-04 with total page 3129 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Marcel Grossmann Meetings are three-yearly forums that meet to discuss recent advances in gravitation, general relativity and relativistic field theories, emphasizing their mathematical foundations, physical predictions and experimental tests. These meetings aim to facilitate the exchange of ideas among scientists, to deepen our understanding of space-time structures, and to review the status of ongoing experiments and observations testing Einstein's theory of gravitation either from ground or space-based experiments. Since the first meeting in 1975 in Trieste, Italy, which was established by Remo Ruffini and Abdus Salam, the range of topics presented at these meetings has gradually widened to accommodate issues of major scientific interest, and attendance has grown to attract more than 900 participants from over 80 countries.This proceedings volume of the eleventh meeting in the series, held in Berlin in 2006, highlights and records the developments and applications of Einstein's theory in diverse areas ranging from fundamental field theories to particle physics, astrophysics and cosmology, made possible by unprecedented technological developments in experimental and observational techniques from space, ground and underground observatories. It provides a broad sampling of the current work in the field, especially relativistic astrophysics, including many reviews by leading figures in the research community.
Download or read book Advances in Machine Learning and Data Mining for Astronomy written by Michael J. Way and published by CRC Press. This book was released on 2012-03-29 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Machine Learning and Data Mining for Astronomy documents numerous successful collaborations among computer scientists, statisticians, and astronomers who illustrate the application of state-of-the-art machine learning and data mining techniques in astronomy. Due to the massive amount and complexity of data in most scientific disciplines
Download or read book Measuring the Cosmic Microwave Background with BOOMERANG written by Thomas Erhardt Montroy and published by . This book was released on 2003 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Music of the Big Bang written by Amedeo Balbi and published by Springer Science & Business Media. This book was released on 2008-10-16 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ever since its infancy, humankind has been seeking answers to some very basic and profound questions. Did the Universe begin? If it did, how old is it, and where did it come from? What is its shape? What is it made of? Fascinating myths and brilliant in- itions attempting to solve such enigmas can be found all through the history of human thought. Every culture has its own legends, itsownworldcreationtales,itsphilosophicalspeculations,itsre- gious beliefs. Modern science, however, cannot content itself with fanciful explanations, no matter how suggestive they are. No- days, our theories about the Universe, built upon rational ded- tion, have to survive the hard test of experiment and observation. Cosmology, the science which studies the origin and evo- tion of the Universe, had to overcome enormous dif?culties before it could achieve the same level of dignity as other physical dis- plines. At ?rst, it had no serious physical model and mathematical tools that could be used to address the complexity of the problems it had to face. Then, it suffered from a chronic lack of experim- tal data, which made it almost impossible to test the theoretical speculations. Given this situation, answering rigorously the many questions on the nature of the Universe seemed nothing more than a delusion. Today, however, things have changed. We live in the golden age of cosmology: an exciting moment, when, for the ?rst time, we are able to scienti?cally understand our Universe.
Download or read book Diffuse Radio Foregrounds written by Matias Vidal Navarro and published by Springer. This book was released on 2015-12-15 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt: This extensive thesis work covers several topics, including intensity and polarization, focusing on a new polarization bias reduction method. Vidal studied data from the WMAP satellite, which is low signal-to-noise and as such has to be corrected for polarization bias. He presents a new method for correcting the data, based on knowledge of the underlying angle of polarization. Using this novel method, he sets upper limits for the polarization fraction of regions known to emit significant amounts of spinning dust emissions. He also studies the large-scale loops and filaments that dominate the synchrotron sky. The dominant features are investigated, including identification of several new features. For the North Polar Spur, a model of an expanding shell in the vicinity of the Sun is tested, which appears to fit the data. Implications for CMB polarization surveys are also discussed. In addition, Vidal presents interferometric observations of the dark cloud LDN 1780 at 31 GHz and shows that the spinning dust hypothesis can explain the radio properties observed.
Download or read book The Cosmic Microwave Background written by C.H. Lineweaver and published by Springer. This book was released on 2011-09-20 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the NATO Advanced Study Institute on the Cosmological Background Radiation, Strasbourg, France, May 27-June 7, 1996
Download or read book Big Bang Leftovers in the Microwave written by Eric Joseph Gawiser and published by . This book was released on 1999 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spectral Measurements of the Cosmic Microwave Background written by and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Three experiments have measured the intensity of the Cosmic Microwave Background (CMB) at wavelengths 4.0, 3.0, and 0.21 cm. The measurement at 4.0 cm used a direct-gain total-power radiometer to measure the difference in power between the zenith sky and a large cryogenic reference target. Foreground signals are measured with the same instrument and subtracted from the zenith signal, leaving the CMB as the residual. The reference target consists of a large open-mouth cryostat with a microwave absorber submerged in liquid helium; thin windows block the radiative heat load and prevent condensation atmospheric gases within the cryostat. The thermodynamic temperature of the CMB at 4.0 cm is 2.59 +- 0.07 K. The measurement at 3.0 cm used a superheterodyne Dicke-switched radiometer with a similar reference target to measure the zenith sky temperature. A rotating mirror allowed one of the antenna beams to be redirected to a series of zenith angles, permitting automated atmospheric measurements without moving the radiometer. A weighted average of 5 years of data provided the thermodynamic temperature of the CMB at 3.0 cm of 2.62 +- 0.06 K. The measurement at 0.21 cm used Very Large Array observations of interstellar ortho-formaldehyde to determine the CMB intensity in molecular clouds toward the giant HII region W51A (G49.5-0.4). Solutions of the radiative transfer problem in the context of a large velocity gradient model provided estimates of the CMB temperature within the foreground clouds. Collisional excitation from neutral hydrogen molecules within the clouds limited the precision of the result. The thermodynamic temperature of the CMB at 0.21 cm is 3.2 +- 0.9 K. 72 refs., 27 figs., 38 tabs.
Download or read book Measurements of the Cosmic Microwave Background Radiation Polarization Anisotropy at 40Ghz and 90Ghz with the Q U Imaging ExperimenT QUIET written by Alison Rebecca Brizius and published by . This book was released on 2011 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: The polarization of the Cosmic Microwave Background (CMB) contains a wealth of untapped information that will enable us to probe the structure and dynamics of the early universe. The Q/U Imaging ExperimenT (QUIET) was designed to measure these CMB polarization anisotropies at angular scales of 25
Download or read book Background Microwave Radiation and Intracluster Cosmology written by F. Melchiorri and published by IOS Press. This book was released on 2006-01-24 with total page 525 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study is devoted to the Sunyaev-Zeldovich (S-Z) effect, and important related topics in cluster and CMB research. S-Z science is about to be significantly enhanced by unique, multi-faceted cluster and cosmological yield, at a level of precision in accord with the high standards of the current era that was heralded by spectacular achievements in cosmological CMB research. The pedagogical reviews and technical seminars included in this volume represent most of the important current topics in S-Z work and in the astrophysics of clusters. The publication touches upon all relevant aspects of the S-Z effect and its use as a precise cluster and cosmological probe. To commemorate the 40th anniversary of the detection of the CMB by Penzias and Wilson (in 1964), there is a chapter devoted to the history of this discovery. In his fascinating account of their work, he outlines also some lessons pertinent to current scientific issues. Other chapters discuss very interesting related observational work in Europe and the US.
Download or read book Boomerang 2003 written by Theodore Schuyler Kisner and published by ProQuest. This book was released on 2008 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: In early 2003, the Boomerang telescope flew for fifteen days over the Antarctic continent suspended from a balloon at an approximate altitude of 100,000 feet. Using a cryogenically cooled, bolometric receiver, it made measurements of the intensity and polarization of the Cosmic Microwave Background (CMB) Radiation in two overlapping sky patches of 100 and 800 square degrees. A spatial analysis of this data provides confirmation of previous measurements of the multipole angular power spectrum of the temperature anisotropies of the CMB. This data also provides power spectra of the polarization and temperature-polarization correlations that are competitive with previous experiments. Cosmological parameters estimated from these angular power spectra are consistent with a "standard" Lambda-CDM universe where inflation was adiabatic.
Download or read book A Primer On The Physics Of The Cosmic Microwave Background written by Massimo Giovannini and published by World Scientific. This book was released on 2008-03-04 with total page 489 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the last fifteen years, various areas of high energy physics, astrophysics and theoretical physics have converged on the study of cosmology so that any graduate student in these disciplines today needs a reasonably self-contained introduction to the Cosmic Microwave Background (CMB). This book presents the essential theoretical tools necessary to acquire a modern working knowledge of CMB physics. The style of the book, falling somewhere between a monograph and a set of lecture notes, is pedagogical and the author uses the typical approach of theoretical physics to explain the main problems in detail, touching on the main assumptions and derivations of a fascinating subject.
