2011A&A...536A...4P

Query : 2011A&A...536A...4P

2011A&A...536A...4P - Astronomy and Astrophysics, volume 536A, 4-4 (2011/12-1)

Planck early results. IV. First assessment of the high frequency instrument in-flight performance.

PLANCK HFI CORE TEAM, ADE P.A.R., AGHANIM N., ANSARI R., ARNAUD M., ASHDOWN M., AUMONT J., BANDAY A.J., BARTELMANN M., BARTLETT J.G., BATTANER E., BENABED K., BENOIT A., BERNARD J.-P., BERSANELLI M., BHATIA R., BOCK J.J., BOND J.R., BORRILL J., BOUCHET F.R., BOULANGER F., BRADSHAW T., BREELLE E., BUCHER M., CAMUS P., CARDOSO J.-F., CATALANO A., CHALLINOR A., CHAMBALLU A., CHARRA J., CHARRA M., CHARY R.-R., CHIANG C., CHURCH S., CLEMENTS D.L., COLOMBI S., COUCHOT F., COULAIS A., CRESSIOT C., CRILL B.P., CROOK M., DE BERNARDIS P., DELABROUILLE J., DELOUIS J.-M., DESERT F.-X., DOLAG K., DOLE H., DORE O., DOUSPIS M., EFSTATHIOU G., ENG P., FILLIARD C., FORNI O., FOSALBA P., FOURMOND J.-J., GANGA K., GIARD M., GIRARD D., GIRAUD-HERAUD Y., GISPERT R., GORSKI K.M., GRATTON S., GRIFFIN M., GUYOT G., HAISSINSKI J., HARRISON D., HELOU G., HENROT-VERSILLE S., HERNANDEZ-MONTEAGUDO C., HILDEBRANDT S.R., HILLS R., HIVON E., HOBSON M., HOLMES W.A., HUFFENBERGER K.M., JAFFE A.H., JONES W.C., KAPLAN J., KNEISSL R., KNOX L., LAGACHE G., LAMARRE J.-M., LAMI P., LANGE A.E., LASENBY A., LAVABRE A., LAWRENCE C.R., LERICHE B., LEROY C., LONGVAL Y., MACIAS-PEREZ J.F., MACIASZEK T., MacTAVISH C.J., MAFFEI B., MANDOLESI N., MANN R., MANSOUX B., MASI S., MATSUMURA T., McGEHEE P., MELIN J.-B., MERCIER C., MIVILLE-DESCHENES M.-A., MONETI A., MONTIER L., MORTLOCK D., MURPHY A., NATI F., NETTERFIELD C.B., NORGAARD-NIELSEN H.U., NORTH C., NOVIELLO F., NOVIKOV D., OSBORNE S., PAINE C., PAJOT F., PATANCHON G., PEACOCKE T., PEARSON T.J., PERDEREAU O., PEROTTO L., PIACENTINI F., PIAT M., PLASZCZYNSKI S., POINTECOUTEAU E., PONS R., PONTHIEU N., PREZEAU G., PRUNET S., PUGET J.-L., REACH W.T., RENAULT C., RISTORCELLI I., ROCHA G., ROSSET C., ROUDIER G., ROWAN-ROBINSON M., RUSHOLME B., SANTOS D., SAVINI G., SCHAEFER B.M., SHELLARD P., SPENCER L., STARCK J.-L., STASSI P., STOLYAROV V., STOMPOR R., SUDIWALA R., SUNYAEV R., SYGNET J.-F., TAUBER J.A., THUM C., TORRE J.-P., TOUZE F., TRISTRAM M., VAN LEEUWEN F., VIBERT L., VIBERT D., WADE L.A., WANDELT B.D., WHITE S.D.M., WIESEMEYER H., WOODCRAFT A., YURCHENKO V., YVON D. and ZACCHEI A.

Abstract (from CDS):

The Planck High Frequency Instrument (HFI) is designed to measure the temperature and polarization anisotropies of the cosmic microwave background and Galactic foregrounds in six ∼30% bands centered at 100, 143, 217, 353, 545, and 857GHz at an angular resolution of 10' (100GHz), 7' (143GHz), and 5' (217 GHz and higher). HFI has been operating flawlessly since launch on 14 May 2009, with the bolometers reaching 100 mK the first week of July. The settings of the readout electronics, including bolometer bias currents, that optimize HFI's noise performance on orbit are nearly the same as the ones chosen during ground testing. Observations of Mars, Jupiter, and Saturn have confirmed that the optical beams and the time responses of the detection chains are in good agreement with the predictions of physical optics modeling and pre-launch measurements. The Detectors suffer from a high flux of cosmic rays due to historically low levels of solar activity. As a result of the redundancy of Planck's observation strategy, the removal of a few percent of data contaminated by glitches does not significantly affect the instrumental sensitivity. The cosmic ray flux represents a significant and variable heat load on the sub-Kelvin stage. Temporal variation and the inhomogeneous distribution of the flux results in thermal fluctuations that are a probable source of low frequency noise. The removal of systematic effects in the time ordered data provides a signal with an average noise equivalent power that is 70% of the goal in the 0.6-2.5Hz range. This is slightly higher than was achieved during the pre-launch characterization but better than predicted in the early phases of the project. The improvement over the goal is a result of the low level of instrumental background loading achieved by the optical and thermal design of the HFI.

Abstract Copyright: ∼

Journal keyword(s): instrumentation: detectors - methods: data analysis - instrumentation: photometers - 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 - 2024 		#notes
1 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 14419 0

Query : 2011A&A...536A...4P

Basic data :
NAME Galactic Center -- Region defined in the Sky
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: 		reg (), gam (HESS,TeV,...), HS? (2019A&A)
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) : 		17 45 39.60213 -29 00 22.0000 (Gamma-ray) [ ] E 2018A&A...612A...1H
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) : 		17 42 28.87566 -28 59 12.3570 [ ]
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) : 		359.94487501 -00.04391769 [ ]
SIMBAD within arcmin
', {sourceSize:12, color:'#30a090'})); aladin.on('objectClicked', function(object) { var objName=object.data.MAIN_ID; aladin.showPopup(object.ra,object.dec,'',''+ objName+''); });" title="Show Simbad objects"> Overlay Simbad points in this preview
Back
All CDSPortal (CDSPortal)
Send to sendBySAMP sendBySAMP
sedIcon
within arcsec The VizieR photometry tool allows for easy visualization of photometry points extracted around the Simbad position from photometry-enabled catalogues in VizieR.
The search radius has to be specified by the user. It is currently limited to a maximum of 30 arcsec. It depends mostly on the precision or quality of the coordinates (SIMBAD and VizieR catalogs), the resolution of the images from which the sources were extracted, source extent, and source crowding.
Suggestions are: crowded field: 0.5 to 1.5 arcsec, 3 arcsec otherwise; uncertain coordinates (SIMBAD quality E or coordinates without reference): 5 to 30 arsec (risky!). sed-help-icon

Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

The count displayed here is the number of children objects.
The list obtained by clicking the button may be larger, as some children may be linked with different references or probability.

%This number is the number of distinct objets linked, by using this button, you will obtain all links (may be more than one) from that object to his children

: 1 		Display criteria :

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (8) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

NAME Gal Centre HESS J1745-290 NAME Gal Center TeV J1745-290
GAL 000.0+00.0 NAME Galactic Centre NAME Galactic Center VER J1745-290

References (14419 between 1850 and 2024) (Total 14419)
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


herschel : 148    ISO : 55    XMM : 1   

   

External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Search by coordinates in Vizier (radius: 5 arcsec)

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 .

display existing annotations (1)

add an annotation to this object

report an error concerning the data of this object

To bookmark this query, right click on this link: simbad:objects in 2011A&A...536A...4P and select 'bookmark this link' or equivalent in the popup menu