Publications (18)
ARCADE 2 Measurement of the Extra-Galactic Sky Temperature at 3-90 GHz
D. J. Fixsen, A. Kogut, S. Levin +8
The ARCADE 2 instrument has measured the absolute temperature of the sky at frequencies 3, 8, 10, 30, and 90 GHz, using an open-aperture cryogenic instrument observing at balloon a…
The ARCADE 2 Instrument
J. Singal, D. J. Fixsen, A. Kogut +8
The second generation Absolute Radiometer for Cosmology, Astrophysics, and Diffuse Emission (ARCADE 2) instrument is a balloon-borne experiment to measure the radiometric temperatu…
Application of Monte Carlo Algorithms to the Bayesian Analysis of the Cosmic Microwave Background
J. Jewell, S. Levin, C. H. Anderson
Power spectrum estimation and evaluation of associated errors in the presence of incomplete sky coverage; non-homogeneous, correlated instrumental noise; and foreground emission is…
Bayesian Approach to Foreground Removal
J. Jewell, C. R. Lawrence, S. Levin
Our ability to extract the maximal amount of information from future observations at gigahertz frequencies depends on our ability to separate the underlying cosmic microwave backgr…
Planck pre-launch status: the Planck-LFI programme
N. Mandolesi, M. Bersanelli, R. C. Butler +140
This paper provides an overview of the Low Frequency Instrument (LFI) programme within the ESA Planck mission. The LFI instrument has been developed to produce high precision maps…
A Determination of the Spectral Index of Galactic Synchrotron Emission in the 1-10 GHz range
P. Platania, M. Bensadoun, M. Bersanelli +5
We present an analysis of simultaneous multifrequency measurements of the Galactic emission in the 1-10 GHz range with 18 degrees, angular resolution taken from a high altitude sit…
Planck pre-launch status: Low Frequency Instrument calibration and expected scientific performance
A. Mennella, M. Bersanelli, R. C. Butler +83
We give the calibration and scientific performance parameters of the Planck Low Frequency Instrument (LFI) measured during the ground cryogenic test campaign. These parameters char…
Design and Calibration of a Cryogenic Blackbody Calibrator at Centimeter Wavelengths
A. Kogut, E. Wollack, D. J. Fixsen +5
We describe the design and calibration of an external cryogenic blackbody calibrator used for the first two flights of the Absolute Radiometer for Cosmology, Astrophysics, and Diff…
Effect of a magnetosphere compression on Jovian radio emissions: in situ case study using Juno data
C. K. Louis, C. M. Jackman, G. Hospodarsky +13
During its 53-day polar orbit around Jupiter, Juno often crosses the boundaries of the Jovian magnetosphere (namely the magnetopause and bow shock). From the boundary locations, th…
ARCADE: Absolute Radiometer for Cosmology, Astrophysics, and Diffuse Emission
A. Kogut, D. Fixsen, S. Fixsen +8
The Absolute Radiometer for Cosmology, Astrophysics, and Diffuse Emission (ARCADE) is a balloon-borne instrument designed to measure the temperature of the cosmic microwave backgro…
The Temperature of the CMB at 10 GHz
D. J. Fixsen, A. Kogut, S. Levin +5
We report the results of an effort to measure the low frequency portion of the spectrum of the Cosmic Microwave Background Radiation (CMB), using a balloon-borne instrument called…
Power spectrum estimation from high-resolution maps by Gibbs sampling
H. K. Eriksen, I. J. O'Dwyer, J. B. Jewell +6
We revisit a recently introduced power spectrum estimation technique based on Gibbs sampling, with the goal of applying it to the high-resolution WMAP data. In order to facilitate…
Advanced pseudo-correlation radiometers for the Planck-LFI instrument
A. Mennella, M. Bersanelli, R. C. Butler +34
The LFI (Low Frequency Instrument) on board the ESA Planck satellite is constituted by an array of radiometric detectors actively cooled at 20 K in the 30-70 GHz frequency range in…
Comparing Jupiter interior structure models to Juno gravity measurements and the role of a dilute core
S. M. Wahl, W. B. Hubbard, B. Militzer +10
The Juno spacecraft has measured Jupiter's low-order, even gravitational moments, --, to an unprecedented precision, providing important constraints on the density profil…
Planck pre-launch status: Design and description of the Low Frequency Instrument
M. Bersanelli, N. Mandolesi, R. C. Butler +109
In this paper we present the Low Frequency Instrument (LFI), designed and developed as part of the Planck space mission, the ESA program dedicated to precision imaging of the cosmi…
An Instrument to Measure the Temperature of the Cosmic Microwave Background Radiation at Centimeter Wavelengths
A. Kogut, D. J. Fixsen, S. Levin +5
The Absolute Radiometer for Cosmology, Astrophysics, and Diffuse Emission (ARCADE) is a balloon-borne instrument to measure the temperature of the cosmic microwave background at ce…
Planck pre-launch status: calibration of the Low Frequency Instrument flight model radiometers
F. Villa, L. Terenzi, M. Sandri +71
The Low Frequency Instrument (LFI) on-board the ESA Planck satellite carries eleven radiometer subsystems, called Radiometer Chain Assemblies (RCAs), each composed of a pair of pse…
Bayesian Power Spectrum Analysis of the First-Year WMAP data
I. J. O'Dwyer, H. K. Eriksen, B. D. Wandelt +6
We present the first results from a Bayesian analysis of the WMAP first year data using a Gibbs sampling technique. Using two independent, parallel supercomputer codes we analyze t…