منابع مشابه
Simulations of the Microwave Sky
We create realistic, full-sky, half-arcminute resolution simulations of the microwave sky matched to the most recent astrophysical observations. The primary purpose of these simulations is to test the data reduction pipeline for the Atacama Cosmology Telescope (ACT) experiment; however, we have widened the frequency coverage beyond the ACT bands and utilized the easily accessible HEALPix map fo...
متن کاملPolarization and anisotropy of the microwave sky.
We study the polarization-polarization and polarization-temperature correlations in standard adiabatic scenarios for structure formation. Temperature anisotropies due to gravitational potential wells and oscillations in the photon-baryon-electron uid on the surface of last scattering are each associated with a correlated polarization pattern. While thècorrelated part' of the polarization has an...
متن کاملRadio source contributions to the microwave sky
Cross-correlations of theWilkinson Microwave Anisotropy Probe (WMAP) full sky K-, Ka-, Q-, V-, and W-band maps with the 1.4 GHz NVSS source count map and the HEAO I A2 2–10 keV full sky X-ray flux map are used to constrain rms fluctuations due to unresolved microwave sources in theWMAP frequency range. In the Q band (40.7 GHz), a lower limit, taking account of only those fluctuations correlated...
متن کاملIntroducing the Sky and the Social Eye
We introduce the Sky and the Social Eye task which was run for the first time as a Grand Challenge at the 2016 ACM Multimedia Conference and as a Task Force at the 2016 MediaEval Workshop. Participants combined satellite images with social media to create a richer user experience. For the first year, the task was exploratory allowing participants to produce their own system without traditional ...
متن کاملSatellite design parameters for detecting coherence in the microwave sky
Recently it has been realized that observations of fluctuations in the cosmic microwave background (CMB) can reveal very interesting information about the degree of coherence exhibited by the perturbations at early times. This fact should allow sufficiently detailed observations to clearly differentiate among several competing models of structure formation. We study the mission parameters requi...
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ژورنال
عنوان ژورنال: IEEE Microwave Magazine
سال: 2019
ISSN: 1527-3342,1557-9581
DOI: 10.1109/mmm.2018.2885658