2019MNRAS.487.5814V

Query : 2019MNRAS.487.5814V

2019MNRAS.487.5814V - Mon. Not. R. Astron. Soc., 487, 5814-5823 (2019/August-3)

Statistical properties of polarized CMB foreground maps.

VON HAUSEGGER S., GAMMELGAARD RAVNEBJERG A. and LIU H.

Abstract (from CDS):

Foreground removal techniques for CMB analyses make specific assumptions about the properties of foregrounds in temperature and in polarization. By investigating the statistics of foreground components more understanding about the degree to which these assumptions are valid can be obtained. In this work we investigate E- and B-mode maps of the two strongest polarized foregrounds, synchrotron and thermal dust emission, with regards to their similarity with Gaussian processes, their spectral variations, and cross-correlations. We perform tests in patches of ∼3.7° size collectively covering the full sky and find most of them to conform to their Gaussian expectation according to the statistics in use. Correlations exhibit distinct differences in E- and B-mode signals, which point towards necessities in foreground removal methods. We discuss potential consequences and possible further directions.

Abstract Copyright: © 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): methods: data analysis - methods: statistical - cosmic background radiation - cosmology: observations

Simbad objects: 1

goto Full paper

goto View the references in ADS

Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NAME North Polar Spur ISM 12 00 +00.0           ~ 405 1

Query : 2019MNRAS.487.5814V

Basic data :
NAME North Polar Spur -- Interstellar Medium Object
Other object types: otypes_help 		ISM ()
ICRS coord. (ep=J2000) : 		12 00 00.0 +00 00 00 [ ] E ~
FK4 coord. (ep=B1950 eq=1950) : 		11 57 26.2 +00 16 42 [ ]
Gal coord. (ep=J2000) : 		276.3373 +60.1886 [ ]
SIMBAD within arcmin
Overlay Simbad points in this preview
Back
All CDSPortal (CDSPortal)
Send to sendBySAMP sendBySAMP
sedIcon
within arcsec sed-help-icon
notes:

Identifiers (2) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

NAME NPS NAME North Polar Spur

References (405 between 1850 and 2026) (Total 405)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
Follow new references on this object
                Reference summaries :

                from: to:

                 or select by : (not exhaustive, explanation here)

Observing logs

XMM : 3   

   

Annotations :
Annotations allow a user to add a note or report an error concerning the astronomical object and its data. It requires registration to post a note. See description .
Please, have a look at Best practices. The list of all annotations to SIMBAD objects can be found here .

The annotation server is currently not available. Sorry for any inconvenience

To bookmark this query, right click on this link: simbad:objects in 2019MNRAS.487.5814V and select 'bookmark this link' or equivalent in the popup menu