Imperial College London
Portrait Picture

Carlo R. Contaldi

Faculty of Natural Sciences, Department of Physics

Professor of Theoretical Physics
 
 
 
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Contact

 

+44 (0)20 7594 1527c.contaldi

 
 
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Location

 

505Huxley BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Contaldi:2017:1/41,
author = {Contaldi, CR},
doi = {1/41},
journal = {Astronomical Journal},
title = {Imaging parity-violating modes in the CMB},
url = {http://dx.doi.org/10.3847/1538-3881/153/1/41},
volume = {153},
year = {2017}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Correlations of polarization components in the coordinate frame are a natural basis for searches of parity-violating modes in the cosmic microwave background. This fact can be exploited to build estimators of parity-violating modes that are local and robust with respect to partial-sky coverage or inhomogeneous weighting. As an example application of a method based on these ideas, we develop a peak stacking tool that isolates the signature of parity-violating modes. We apply the tool to Planck maps and obtain a constraint on the monopole of the polarization rotation angle $\alpha \lt 0\buildrel{\circ}\over{.} 72$ at 95% We also demonstrate how the tool can be used as a local method for reconstructing maps of direction dependent rotation $\alpha (\hat{{\boldsymbol{n}}})$.
AU  - Contaldi,CR
DO  - 1/41
PY  - 2017///
SN  - 0004-6256
TI  - Imaging parity-violating modes in the CMB
T2  - Astronomical Journal
UR  - http://dx.doi.org/10.3847/1538-3881/153/1/41
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000391970500004&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - http://hdl.handle.net/10044/1/51371
VL  - 153
ER  -
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