2014A&A...571A..23P

Query : 2014A&A...571A..23P

2014A&A...571A..23P - Astronomy and Astrophysics, volume 571A, 23-23 (2014/11-1)

Planck 2013 results. XXIII. Isotropy and statistics of the CMB.

PLANCK COLLABORATION, ADE P.A.R., AGHANIM N., ARMITAGE-CAPLAN C., ARNAUD M., ASHDOWN M., ATRIO-BARANDELA F., AUMONT J., BACCIGALUPI C., BANDAY A.J., BARREIRO R.B., BARTLETT J.G., BARTOLO N., BATTANER E., BATTYE R., BENABED K., BENOIT A., BENOIT-LEVY A., BERNARD J.-P., BERSANELLI M., BIELEWICZ P., BOBIN J., BOCK J.J., BONALDI A., BONAVERA L., BOND J.R., BORRILL J., BOUCHET F.R., BRIDGES M., BUCHER M., BURIGANA C., BUTLER R.C., CARDOSO J.-F., CATALANO A., CHALLINOR A., CHAMBALLU A., CHARY R.-R., CHIANG H.C., CHIANG L.-Y., CHRISTENSEN P.R., CHURCH S., CLEMENTS D.L., COLOMBI S., COLOMBO L.P.L., COUCHOT F., COULAIS A., CRILL B.P., CRUZ M., CURTO A., CUTTAIA F., DANESE L., DAVIES R.D., DAVIS R.J., DE BERNARDIS P., DE ROSA A., DE ZOTTI G., DELABROUILLE J., DELOUIS J.-M., DESERT F.-X., DIEGO J.M., DOLE H., DONZELLI S., DORE O., DOUSPIS M., DUCOUT A., DUPAC X., EFSTATHIOU G., ELSNER F., ENSSLIN T.A., ERIKSEN H.K., FANTAYE Y., FERGUSSON J., FINELLI F., FORNI O., FRAILIS M., FRANCESCHI E., FROMMERT M., GALEOTTA S., GANGA K., GIARD M., GIARDINO G., GIRAUD-HERAUD Y., GONZALEZ-NUEVO J., GORSKI K.M., GRATTON S., GREGORIO A., GRUPPUSO A., HANSEN F.K., HANSEN M., HANSON D., HARRISON D.L., HELOU G., HENROT-VERSILLE S., HERNANDEZ-MONTEAGUDO C., HERRANZ D., HILDEBRANDT S.R., HIVON E., HOBSON M., HOLMES W.A., HORNSTRUP A., HOVEST W., HUFFENBERGER K.M., JAFFE A.H., JAFFE T.R., JONES W.C., JUVELA M., KEIHAENEN E., KESKITALO R., KIM J., KISNER T.S., KNOCHE J., KNOX L., KUNZ M., KURKI-SUONIO H., LAGACHE G., LAEHTEENMAEKI A., LAMARRE J.-M., LASENBY A., LAUREIJS R.J., LAWRENCE C.R., LEAHY J.P., LEONARDI R., LEROY C., LESGOURGUES J., LIGUORI M., LILJE P.B., LINDEN-VORNLE M., LOPEZ-CANIEGO M., LUBIN P.M., MACIAS-PEREZ J.F., MAFFEI B., MAINO D., MANDOLESI N., MANGILLI A., MARINUCCI D., MARIS M., MARSHALL D.J., MARTIN P.G., MARTINEZ-GONZALEZ E., MASI S., MASSARDI M., MATARRESE S., MATTHAI F., MAZZOTTA P., McEWEN J.D., MEINHOLD P.R., MELCHIORRI A., MENDES L., MENNELLA A., MIGLIACCIO M., MIKKELSEN K., MITRA S., MIVILLE-DESCHENES M.-A., MOLINARI D., MONETI A., MONTIER L., MORGANTE G., MORTLOCK D., MOSS A., MUNSHI D., MURPHY J.A., NASELSKY P., NATI F., NATOLI P., NETTERFIELD C.B., NORGAARD-NIELSEN H.U., NOVIELLO F., NOVIKOV D., NOVIKOV I., OSBORNE S., OXBORROW C.A., PACI F., PAGANO L., PAJOT F., PAOLETTI D., PASIAN F., PATANCHON G., PEIRIS H.V., PERDEREAU O., PEROTTO L., PERROTTA F., PIACENTINI F., PIAT M., PIERPAOLI E., PIETROBON D., PLASZCZYNSKI S., POGOSYAN D., POINTECOUTEAU E., POLENTA G., PONTHIEU N., POPA L., POUTANEN T., PRATT G.W., PREZEAU G., PRUNET S., PUGET J.-L., RACHEN J.P., RACINE B., RAETH C., REBOLO R., REINECKE M., REMAZEILLES M., RENAULT C., RENZI A., RICCIARDI S., RILLER T., RISTORCELLI I., ROCHA G., ROSSET C., ROTTI A., ROUDIER G., RUBINO-MARTIN J.A., RUIZ-GRANADOS B., RUSHOLME B., SANDRI M., SANTOS D., SAVINI G., SCOTT D., SEIFFERT M.D., SHELLARD E.P.S., SOURADEEP T., SPENCER L.D., STARCK J.-L., STOLYAROV V., STOMPOR R., SUDIWALA R., SUREAU F., SUTTER P., SUTTON D., SUUR-USKI A.-S., SYGNET J.-F., TAUBER J.A., TAVAGNACCO D., TERENZI L., TOFFOLATTI L., TOMASI M., TRISTRAM M., TUCCI M., TUOVINEN J., TUERLER M., VALENZIANO L., VALIVIITA J., VAN TENT B., VARIS J., VIELVA P., VILLA F., VITTORIO N., WADE L.A., WANDELT B.D., WEHUS I.K., WHITE M., WILKINSON A., YVON D., ZACCHEI A. and ZONCA A.

Abstract (from CDS):

The two fundamental assumptions of the standard cosmological model - that the initial fluctuations are statistically isotropic and Gaussian - are rigorously tested using maps of the cosmic microwave background (CMB) anisotropy from the Planck satellite. The detailed results are based on studies of four independent estimates of the CMB that are compared to simulations using a fiducial ΛCDM model and incorporating essential aspects of the Planck measurement process. Deviations from isotropy have been found and demonstrated to be robust against component separation algorithm, mask choice, and frequency dependence. Many of these anomalies were previously observed in the WMAP data, and are now confirmed at similar levels of significance (about 3σ). However, we find little evidence of non-Gaussianity, with the exception of a few statistical signatures that seem to be associated with specific anomalies. In particular, we find that the quadrupole-octopole alignment is also connected to a low observed variance in the CMB signal. A power asymmetry is now found to persist on scales corresponding to about l=600 and can be described in the low-l regime by a phenomenological dipole modulation model. However, any primordial power asymmetry is strongly scale-dependent and does not extend to arbitrarily small angular scales. Finally, it is plausible that some of these features may be reflected in the angular power spectrum of the data, which shows a deficit of power on similar scales. Indeed, when the power spectra of two hemispheres defined by a preferred direction are considered separately, one shows evidence of a deficit in power, while its opposite contains oscillations between odd and even modes that may be related to the parity violation and phase correlations also detected in the data. Although these analyses represent a step forward in building an understanding of the anomalies, a satisfactory explanation based on physically motivated models is still lacking.

Abstract Copyright: ∼

Journal keyword(s): cosmic background radiation - cosmology: observations - cosmology: miscellaneous

Simbad objects: 1

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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 - 2024	#notes
1	NAME the Cold Spot	?	03 13	-20.5						~	47	0

Query : 2014A&A...571A..23P

Basic data :

NAME the Cold Spot -- Object of Unknown Nature
Origin of the objects types : (Ref) Object type as listed in the reference "Ref" (acronym) Object type linked to the acronym according to the original reference () Anterior to 2007, before we can link the objet type to a reference, or given by the CDS team in some particular cases Other object types:
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" : ra dec : right ascension and declination (unit and frame defined according to your Output Options) Grey values are increasing the original precision due to the computation of frame transformations (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam) [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue), position angle (in degrees North celestial pole to East) quality : flag of quality E ≥ 10" D : 1-10" (and some old data) C : 0.1-1" B : 0.01-0.1" + 2MASS, Tyc A : VLBI, Hipparcos bibcode : bibcode of the coordinates reference ICRS coord. (ep=J2000) :	`03 13 00.0 -20 30 00 [ ] E 2005MNRAS.356...29C`
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" : ra dec : right ascension and declination (unit and frame defined according to your Output Options) Grey values are increasing the original precision due to the computation of frame transformations (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam) [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue), position angle (in degrees North celestial pole to East) quality : flag of quality E ≥ 10" D : 1-10" (and some old data) C : 0.1-1" B : 0.01-0.1" + 2MASS, Tyc A : VLBI, Hipparcos bibcode : bibcode of the coordinates reference FK4 coord. (ep=B1950 eq=1950) :	`03 10 44.9 -20 41 11 [ ]`
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" : ra dec : right ascension and declination (unit and frame defined according to your Output Options) Grey values are increasing the original precision due to the computation of frame transformations (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam) [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue), position angle (in degrees North celestial pole to East) quality : flag of quality E ≥ 10" D : 1-10" (and some old data) C : 0.1-1" B : 0.01-0.1" + 2MASS, Tyc A : VLBI, Hipparcos bibcode : bibcode of the coordinates reference Gal coord. (ep=J2000) :	`209.0818 -57.0643 [ ]`

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NAME the Cold Spot NAME the Spot

References (47 between 1850 and 2024) (Total 47)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).

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