CMB Lensing Constraints on Dark Energy and Modified Gravity Scenarios (2009)
Calabrese, Erminia, Cooray, Asantha, Martinelli, Matteo, Melchiorri, Alessandro, Pagano, Luca, Slosar, Anze, ...
Weak gravitational lensing leaves a characteristic imprint on the cosmic microwave background temperature and polarization angular power spectra. Here we investigate the possible constraints on the...
Galli, Silvia, Melchiorri, Alessandro, Smoot, George F., Zahn, Oliver
We present new constraints on cosmic variations of Newton's gravitational constant by making use of the latest CMB data from WMAP, BOOMERANG, CBI and ACBAR experiments and independent constraints...
Cosmic Microwave Weak lensing data as a test for the dark universe (2008)
Calabrese, Erminia, Slosar, Anze, Melchiorri, Alessandro, Smoot, George F., Zahn, Oliver
Combined analyses of WMAP 3-year and ACBAR Cosmic Microwave Anisotropies angular power spectra have presented evidence for gravitational lensing >3 sigma level. This signal could provide a relevant...
CMB Anisotropies: Their Discovery and Utilization (2008)
This article is a written and modified version of a talk presented at the conference `A Century of Cosmology' held at San Servolo, Venice, Italy, in August 2007. The talk focuses on some of the...
Does COBE rule out a toroidal Universe? (2007)
Introduction In the past few years, the study of the topology of the Universe has become an important problem for cosmologists and some hypotheses, such as a Universe composed of spatial sections...
The Planck Surveyor mission: astrophysical prospects (2007)
Gianfranco De Zotti, Luigi Toffolatti, Francisco Argueso, Rodney D. Davies, Pasquale Mazzotta, R. Bruce Partridge, ...
. Although the Planck Surveyor mission is optimized to map the cosmic microwave background anisotropies, it will also provide extremely valuable information on astrophysical phenomena. We review our...
What we learn from CMB Anisotropies (2007)
George Smoot shared the 2006 Nobel Prize with John Mathere for the discovery of the fluctuations of the cosmic microwave background. In this talk (which will not be the same as the Nobel lecture), he...
Power Spectrum Analysis of Far-IR Background Fluctuations in Spitzer Maps at 160 Microns (2005)
Grossan, Bruce, Smoot, George F.
We describe data reduction and analysis of fluctuations in the Cosmic Far-IR Background (CFIB) in large maps observed with the Multiband Imaging Photometer for Spitzer (MIPS) instrument 160 micron...
GZK cutoff distortion due to the energy error distribution shape (2005)
Albuquerque, Ivone F. M., Smoot, George F.
The observed energy spectrum of ultra high energy cosmic rays (UHECR) is distorted by errors in the energy reconstruction. Here we show that if the shape of the error distribution is lognormal, the...
Recent Results from the MAXIMA Experiment (2003)
Jaffe, Andrew H., Abroe, Matthew, Borrill, Julian, Collins, Jeff, Ferreira, Pedro, Hanany, Shaul, ...
MAXIMA is a balloon-borne platform for measuring the anisotropy of the Cosmic Microwave Background (CMB). It has measured the CMB power spectrum with a ten-arcminute FWHM beam, corresponding to a...
Neutrino Telescopes' Sensitivity to Dark Matter (2002)
Albuquerque, Ivone F. M., Lamoureux, Jodi, Smoot, George F.
The nature of the dark matter of the Universe is yet unknown and most likely is connected with new physics. The search for its composition is under way through direct and indirect detection....
Astrophysical Neutrino Event Rates and Sensitivity for Neutrino Telescopes (2001)
Albuquerque, Ivone F. M., Lamoureux, Jodi, Smoot, George F.
Spectacular processes in astrophysical sites produce high-energy cosmic rays which are further accelerated by Fermi-shocks into a power-law spectrum. These, in passing through radiation fields and...
Measuring Atmospheric Neutrino Oscillations with Neutrino Telescopes (2001)
Albuquerque, Ivone F. M., Smoot, George F.
Neutrino telescopes with large detection volumes can demonstrate that the current indications of neutrino oscillation are correct or if a better description can be achieved with non-standard...
WOMBAT & FORECAST: Making Realistic Maps of the Microwave Sky (1999)
Jaffe, Andrew H., Gawiser, Eric, Finkbeiner, Douglas, Baker, Joanne C., Balbi, Amedeo, Davis, Marc, ...
The Wavelength-Oriented Microwave Background Analysis Team (WOMBAT) is constructing microwave maps which will be more realistic than previous simulations. Our foreground models represent a...
Synchrotron Radiation as CMB Foreground (1999)
Synchrotron emission is an important process in Galactic dynamics and a potentially confusing foreground for cosmic microwave background (CMB) radiation observations. Though the mechanism of...
Summary of Results from COBE (1999)
This work presents a summary of major cosmological results from the COBE (Cosmic Background Explorer) satellite mission. The results include a precise measurement of the Cosmic Microwave Background...
The WOMBAT Challenge: A "Hounds and Hares" Exercise for Cosmology (1998)
Gawiser, Eric, Finkbeiner, Douglas, Jaffe, Andrew, Baker, Joanne C., Balbi, Amedeo, Davis, Marc, ...
The Wavelength-Oriented Microwave Background Analysis Team (WOMBAT) is constructing microwave skymaps which will be more realistic than previous simulations. Our foreground models represent a...
Contribution of Bright Extragalactic Radio Sources to Microwave Anisotropy (1998)
Sokasian, Aaron, Gawiser, Eric, Smoot, George F.
We estimate the contribution of extragalactic radio sources to fluctuations in sky temperature over the range of frequencies (10-300 GHz) used for Cosmic Microwave Background (CMB) anisotropy...
A bolometer cooled by a He-3 refrigerator has been built to detect small anisotropies in the cosmic background radiation. This bolometer can be tested on ground-based instruments and is proposed to...
The Cosmic Microwave Background Spectrum:an Analysis of Observations (1998)
Nordberg, Henrik P., Smoot, George F.
This work presents a detailed analysis of Cosmic Microwave Background (CMB) radiation intensity observations. The CMB is a relic of the Big Bang and its study greatly enhances our knowledge of...
Galactic Free-free and H-alpha Emission (1998)
This document provides a brief summary estimate of Galactic free-free emission and H-alpha emission and their relationship. Particular emphasis is placed on estimating the potential free-free...
The Cosmic Microwave Background Spectrum: an Analysis of Observations (1998)
Henrik P. Nordberg, George F. Smoot
This work presents a detailed analysis of Cosmic Microwave Background (CMB) radiation intensity observations. The CMB is a relic of the Big Bang and its study greatly enhances our knowledge of...
The Cosmic Microwave Background Anisotropy Experiments (1997)
This paper reports a summary of the contents contents of six hours of lectures on the CMB anisotropy experiments given at the Strasbourg NATO school on the CMB and cosmology. (Its companion paper,...
Constraining topology with the CMB (1997)
Smoot, George F., Starobinsky, Alexei A.
We present a new data analysis method to study rectangular T^3 ``small universes" with one or two of its dimensions significantly smaller than the present horizon (which we refer to as T^1- and...
The Cosmic Microwave Background Spectrum (1997)
This paper given at the Strasbourg NATO school on the CMB and cosmology reports the contents of four hours of lectures on the CMB spectrum, potential distortions, and implications. It was followed by...
CMB Experiment Baseline Determination by Minimizing Pixel Observations Dispersion (1997)
This paper discusses a couple of approaches to removing instrument gain and baseline variation from observations of the CMB anisotropy. These techniques were tested on the COBE DMR data, a balloon...
Introduction & Overview: CMB Sessions (1997)
This is a very exciting time for the CMB field. It is widely recognized that precision measurements of the CMB can provide a definitive test of cosmological models and determine their parameters...
Contribution of Extragalactic Infrared Sources to CMB Foreground Anisotropy (1996)
Gawiser, Eric, Smoot, George F.
We estimate the level of confusion to Cosmic Microwave Background anisotropy measurements caused by extragalactic infrared sources. CMB anisotropy observations at high resolution and high frequencies...
Technology Development for a Neutrino Astrophysical Observatory (1996)
Chaloupka, V., Cole, T., Crawford, H.J., He, Y.D., Jackson, S., Kleinfelder, S., ...
Can the lack of symmetry in the COBE/DMR maps constrain the topology of the universe? (1995)
Smoot, George F., Starobinsky, Alexei A.
Although the cubic T^3 "small universe" has been ruled out by COBE/DMR results as an interesting cosmological model, we still have the possibility of living in a universe with a more anisotropic...
The Cosmic Background Radiation, Snowmass Workshop (1995)
Observations of the Cosmic Microwave background have provided many of the most powerful constraints we have on cosmology and events in the early universe. The spectrum and isotropy of CBR have long...
LONG WAVELENGTH OBSERVATIONS OF HIGH GALACTIC LATITUDE DUST (1995)
The properties of high latitude dust are of great interest to extragalactic astronomers and cosmologists. It is proposed here that essentially all high Galactic latitude interstellar dust is at a...
Constraints on the topology of the universe from the 2-yr COBE data (1994)
The cosmic microwave background (CMB) is a unique probe of cosmological parameters and conditions. There is a connection between anisotropy in the CMB and the topology of the Universe. Adopting a...
Smoot, George F., Steinhardt, Paul J.
Could COBE DMR be detecting the imprint from a spectrum of gravitational waves generated during inflation? The conventional inflationary prediction had been that the cosmic microwave anisotropy is...
Measurements of Retractable Gas-Cooled 6061 Aluminum Electrical Leads Operating in a Vacuum (1991)
Green, M.A., Aguiar, H., Bensadoun, M.J., Gibson, J.H., Heine, D.L., Levin, S., ...
Low-Frequency Measurements of the CMB Spectrum (1989)
Kogut, A., Bensadoun, M., De Amici, Giovanni, Levin, S., Limon, M., Smoot, George F., ...
Design and Testing of a Superfluid Liquid Helium Cooling Loop (1989)
Gavin, L.M., Green, M.A., Levin, S.M., Smoot, George F., Witebsky, C.
A Measurement of the Temperature of the Cosmic Microwave Background at a Frequency of 7.5 GHz (1989)
Kogut, A., Bensadoun, M., De Amici, Giovanni, Levin, S., Smoot, George F., Witebsky, C.