SYSTEMATIC EFFECTS IN POLARIZING FOURIER TRANSFORM SPECTROMETERS FOR COSMIC MICROWAVE BACKGROUND OBSERVATIONS

The Microwave Anisotropy Probe (MAP) satellite is scheduled to launch in mid-2001. MAP's goal is to produce a map of the anisotropy in the cosmic microwave background of unprecedented accuracy and precision. The guiding design principle has been the minimization of systematic effects. The instrument design and mapping strategy work in concert to take advantage of the unique opportunities afforded by deep space. We give an overview of the mission and compare the projected MAP error bars to recent measurements.

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AMIBA: FIRST-YEAR RESULTS FOR SUNYAEV-ZEL'DOVICH EFFECT

Modern Physics Letters A ◽

10.1142/s0217732308028089 ◽

2008 ◽

Vol 23 (17n20) ◽

pp. 1675-1686 ◽

Cited By ~ 5

Author(s):

JIUN-HUEI PROTY WU ◽

TZI-HONG CHIUEH ◽

CHI-WEI HUANG ◽

YAO-WEI LIAO ◽

FU-CHENG WANG ◽

...

Keyword(s):

Cosmic Microwave Background ◽

Galaxy Clusters ◽

First Year ◽

Microwave Background ◽

Expansion Plan ◽

Sunyaev Zel'dovich Effect ◽

Systematic Effects ◽

Science Operation

We discuss the observation, analysis, and results of the first-year science operation of AMiBA, an interferometric experiment designed to study cosmology via the measurement of Cosmic Microwave Background (CMB). In 2007, we successfully observed 6 galaxy clusters (z < 0.33) through the Sunyaev-Zel'dovich effect. AMiBA is the first CMB interferometer operating at 86–102 GHz, currently with 7 close-packed antennas of 60 cm in diameter giving a synthesized resolution of around 6 arcminutes. An observing strategy with on-off-source modulation is used to remove the effects from electronic offset and ground pickup. Formalism of the analysis is given and preliminary science results are summarized. Tests for systematic effects are also addressed. We also discuss the expansion plan.

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Status of the GroundBIRD Telescope

EPJ Web of Conferences ◽

10.1051/epjconf/201816801014 ◽

2018 ◽

Vol 168 ◽

pp. 01014

Author(s):

J. Choi ◽

R. Génova-Santos ◽

M. Hattori ◽

M. Hazumi ◽

H. Ishitsuka ◽

...

Keyword(s):

Cosmic Microwave Background ◽

Early Universe ◽

Present Status ◽

Big Bang ◽

Inflationary Cosmology ◽

Polarization Pattern ◽

Microwave Background ◽

Systematic Effects ◽

The Big Bang

Our understanding of physics at very early Universe, as early as 10−35 s after the Big Bang, relies on the scenario known as the inflationary cosmology. Inflation predicts a particular polarization pattern in the cosmic microwave background, known as the B-mode yet the strength of such polarization pattern is extremely weak. To search for the B-mode of the polarization in the cosmic microwave background, we are constructing an off-axis rotating telescope to mitigate systematic effects as well as to maximize the sky coverage of the observation. We will discuss the present status of the GroundBIRD telescope.

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A High-Sensitivity Fourier Transform Spectrometer for Cosmic Microwave Background Observations

IEEE Transactions on Instrumentation and Measurement ◽

10.1109/tim.2019.2945745 ◽

2020 ◽

Vol 69 (7) ◽

pp. 4516-4523 ◽

Cited By ~ 1

Author(s):

Javier De Miguel-Hernandez ◽

Roger J. Hoyland ◽

Maria F. Gomez Renasco ◽

Jose Alberto Rubino-Martin ◽

Teodora A. Viera-Curbelo

Keyword(s):

Fourier Transform ◽

Cosmic Microwave Background ◽

High Sensitivity ◽

Fourier Transform Spectrometer ◽

Microwave Background

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BAM: Using a Fourier Transform Spectrometer to Measure Anisotropy of the Cosmic Microwave Background

Annals of the New York Academy of Sciences ◽

10.1111/j.1749-6632.1993.tb43978.x ◽

1993 ◽

Vol 688 (1) ◽

pp. 812-814 ◽

Cited By ~ 2

Author(s):

M. Halpern ◽

H. P. Gush ◽

I. Shinkoda ◽

G. S. Tucker ◽

W. Towlson

Keyword(s):

Fourier Transform ◽

Cosmic Microwave Background ◽

Fourier Transform Spectrometer ◽

Microwave Background

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Polarization of extragalactic radio sources: CMB foregrounds and telescope calibration issues

International Journal of Modern Physics D ◽

10.1142/s0218271816400095 ◽

2016 ◽

Vol 25 (11) ◽

pp. 1640009 ◽

Cited By ~ 4

Author(s):

Marcella Massardi ◽

Vincenzo Galluzzi ◽

Rosita Paladino ◽

Carlo Burigana

Keyword(s):

Cosmic Microwave Background ◽

Radio Source ◽

High Redshift ◽

The Other ◽

Radio Sources ◽

Polarization Rotation ◽

Microwave Background ◽

Extragalactic Radio Sources ◽

Systematic Effects ◽

The One

Radio source observations play important roles in polarimetric cosmological studies. On the one hand, they constitute the main foregrounds for cosmic microwave background (CMB) radiation on scales smaller than 30 arcmin up to 100 GHz, on the other they can be used as targets for validation of products of polarimetric experiments dedicated to cosmology. Furthermore, extragalactic high-redshift sources have been used for cosmic polarization rotation (CPR) investigation. In this paper, we will discuss the support to cosmological studies from ground-based polarimetric observations in the radio and millimetric wavelength bands. Most of the limits to accuracy improvements arise from systematic effects and low calibration quality. We will discuss some details of interferometric calibration procedures and show some of the perspectives that the Atacama large millimeter array (ALMA) could offer for CPR studies.

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Microwave Background interferometry in Cambridge

International Astronomical Union Colloquium ◽

10.1017/s0252921100013713 ◽

1991 ◽

Vol 131 ◽

pp. 395-399

Author(s):

Michael E. Jones

Keyword(s):

High Temperature ◽

Cosmic Microwave Background ◽

Temperature Sensitivity ◽

Filling Factor ◽

Integration Time ◽

Microwave Background ◽

New Instrument ◽

Sunyaev Zel'dovich Effect ◽

Systematic Effects ◽

High Temperature Sensitivity

AbstractInterferometric methods of studying the Cosmic Microwave Background (CMB) have some distinct advantages over the switched-beam techniques which have mostly been used. However, most existing interferometers are not well suited to CMB observations, for a variety of reasons. These include poor temperature sensitivity due to a low filling factor, and systematic effects which limit the maximum possible integration time. A new instrument, the Ryle Telescope, has been developed in Cambridge which has a high temperature sensitivity (120 μK in 12 h) and the ability to integrate for several hundred hours on the same field. It will be used to study the CMB on angular scales of a few arcminutes, with particular emphasis on the Sunyaev-Zel’dovich effect. A second instrument to study the CMB on angular scales of tens of arcminutes, the Cosmic Anisotropy Telescope (CAT), is also being developed.

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