planck report on the status of the mission carlo baccigalupi, sissa
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Planck Planck
Report on the status of the mission Report on the status of the mission
Carlo Baccigalupi, SISSACarlo Baccigalupi, SISSA
Outline Outline
CMBCMB The Planck satellite The Planck satellite Data processing centerData processing center Expectations from Planck Expectations from Planck Planck dataPlanck data
CMBCMB
CMB anisotropiesCMB anisotropies
T(n), Q(n), U(n), V(n)
aTlm, aE
lm, aBlm
Cl=Σm (almT,E,B)(alm
T,E,B)*/2(l+1)
spherical harmonics
informationcompression
CMB angular power spectrumCMB angular power spectrum
Angle ≈ 200/l degrees
CMB angular power spectrumCMB angular power spectrum
Angle ≈ 200/l degrees
Primordial power
Gravity waves
Acoustic oscillations
Reionization
Lensing
Measured CMB anisotropiesMeasured CMB anisotropies
Angle ≈ 200/l degrees
CMB angular power spectrumCMB angular power spectrum
boomerang
acbar
WMAP
quad
Cosmological concordance modelCosmological concordance model
Cosmological concordance modelCosmological concordance model
Cosmological concordance modelCosmological concordance model
The Planck satelliteThe Planck satellite
Source: Planck scientific program bluebook, Source: Planck scientific program bluebook, available at www.rssd.esa.int/Planckavailable at www.rssd.esa.int/Planck
PlanckPlanck Hardware: ~600 ME, third generation Hardware: ~600 ME, third generation
CMB probe, ESA medium size CMB probe, ESA medium size mission, NASA (JPL, Pasadena) mission, NASA (JPL, Pasadena) contribution on cooling systemscontribution on cooling systems
Low Frequency Instrument (LFI, Low Frequency Instrument (LFI, Nazareno Mandolesi PI, instrument Nazareno Mandolesi PI, instrument design and construction supervised by design and construction supervised by Marco Bersanelli) based on radiometer Marco Bersanelli) based on radiometer technology operating at three technology operating at three frequency channels, 30, 44, 70 GHzfrequency channels, 30, 44, 70 GHz
High Frequency Instrument (HFI, High Frequency Instrument (HFI, Jean-Loup Puget PI) based on Jean-Loup Puget PI) based on bolometer technology, operating at bolometer technology, operating at 100, 143, 217, 353, 545 GHz100, 143, 217, 353, 545 GHz
About 16 years (1993-2009) of design About 16 years (1993-2009) of design and constructionand construction
The Planck focal planeThe Planck focal plane
Planck detectorsPlanck detectors
Planck frequency coveragePlanck frequency coverage
The Planck launch, May 14The Planck launch, May 14thth, 2009, 2009
Planck coolingPlanck cooling
Data processing centerData processing center
Planck contributorsPlanck contributors
Davies
Berkeley
Pasadena
Minneapolis
Rome
HelsinkiCopenhagenBrighton
Oviedo
SantanderPadua
Bologna
TriesteMilan
ParisToulouse
Oxford
CambridgeMunich
Heidelberg
Bucarest
Planck data processing centersPlanck data processing centers
TriesteParis
Data flow and analysis levelsData flow and analysis levels
Level 1, telemetry, Level 1, telemetry, timeline processing, timeline processing, calibrationcalibration
Level 2, map-makingLevel 2, map-making Level 3, multi-Level 3, multi-
frequency analysis, frequency analysis, production of Galactic, production of Galactic, extra-Galactic and extra-Galactic and CMB science productsCMB science products
Mission Operation Center, Darmstadt
TriesteLFI timeline processing and map-making
ParisHFI timeline processing and map-making
Map exchange, separation of astrophysical foreground and backgrounds, Galactic, extra-Galactic astrophysics, CMB science
Trieste, time ordered data processing, Component separation, cosmological parameters
Rome, GLS map-making, power spectra, cosmological parameters
Bologna, beam reconstruction, power spectra, cosmological parameters
The LFI DPCThe LFI DPC
Helsinki, destriper map-makingMilano, calibration, component separation
Berkeley, simulations
Padova, component separation
Planck DPC facilitiesPlanck DPC facilities
DPC people physically in DPC people physically in Trieste are about 20 at Trieste are about 20 at OATs and SISSAOATs and SISSA
The data are hosted on two The data are hosted on two computers, ENT (OATs, computers, ENT (OATs, front-end database and front-end database and computing resource, 256 computing resource, 256 CPUs, hundreds of GB CPUs, hundreds of GB RAM, tens of TB disk RAM, tens of TB disk space), HG1 (SISSA, space), HG1 (SISSA, computing resources, 160 computing resources, 160 CPUs, hundreds of GB CPUs, hundreds of GB RAM, tens of TB disk space)RAM, tens of TB disk space)
Planck milestonesPlanck milestones May 14May 14thth, 2009, launch, the High , 2009, launch, the High
Frequency Instrument (HFI, bolometers) Frequency Instrument (HFI, bolometers) is on is on
June 1June 1stst, 2009, active cryogenic systems , 2009, active cryogenic systems are turned onare turned on
June 8June 8thth, 2009, the Low Frequency , 2009, the Low Frequency Instrument (LFI, radiometers), is turned onInstrument (LFI, radiometers), is turned on
Summer 2009, Planck gets to L2, survey Summer 2009, Planck gets to L2, survey begins, 14 monthsbegins, 14 months
2 years of proprietary period and data 2 years of proprietary period and data analysisanalysis
Early papers on extra-Galactic Early papers on extra-Galactic astrophysics, early 2011astrophysics, early 2011
Complete results including cosmology, Complete results including cosmology, end of 2012end of 2012
Mission extended! Survey doubled, Mission extended! Survey doubled, beginning October 2010, ending end of beginning October 2010, ending end of 20112011
Expectations from PlanckExpectations from Planck
Source: Planck scientific program bluebook, Source: Planck scientific program bluebook, available at www.rssd.esa.int/Planckavailable at www.rssd.esa.int/Planck
Planck deliverablesPlanck deliverables All sky maps in total All sky maps in total
intensity and polarization, intensity and polarization, at 9 frequencies between at 9 frequencies between 30 and 857 GHz30 and 857 GHz
Angular resolution from Angular resolution from 33’ to 7’ between 30 and 33’ to 7’ between 30 and 143 GHz, 5’ at higher 143 GHz, 5’ at higher frequenciesfrequencies
S/N ≈ 10 for CMB in total S/N ≈ 10 for CMB in total intensity, per resolution intensity, per resolution elementelement
Catalogues with tens of Catalogues with tens of thousands of extra-thousands of extra-Galactic sourcesGalactic sources
CMB imagingCMB imaging
CMB polarizationCMB polarization
Probing next generation CMB goalsProbing next generation CMB goals
Cosmological parametersCosmological parameters
Non-CMB Planck scientific deliverablesNon-CMB Planck scientific deliverables
~10~1033 galaxy clusters galaxy clusters ~10~1044 radio and infrared extra-Galactic radio and infrared extra-Galactic
sourcessources Unprecedented insight into the physics of Unprecedented insight into the physics of
diffuse gas in the Galaxy, Galactic diffuse gas in the Galaxy, Galactic magnetic field, …magnetic field, …
……
Planck dataPlanck data
First light surveyFirst light survey
First light surveyFirst light survey
First light surveyFirst light survey
First year surveyFirst year survey
First year surveyFirst year survey
May 14May 14thth, 2009, launch, the High Frequency Instrument , 2009, launch, the High Frequency Instrument (HFI, bolometers) is on (HFI, bolometers) is on
June 1June 1stst, 2009, active cryogenic systems are turned on, 2009, active cryogenic systems are turned on June 8June 8thth, 2009, the Low Frequency Instrument (LFI, , 2009, the Low Frequency Instrument (LFI,
radiometers), is turned onradiometers), is turned on Summer 2009, Planck gets to L2, survey begins, 14 Summer 2009, Planck gets to L2, survey begins, 14
monthsmonths 2 years of proprietary period and data analysis2 years of proprietary period and data analysis Early papers on extra-Galactic astrophysics, early 2011Early papers on extra-Galactic astrophysics, early 2011 Complete results including cosmology, end of 2012Complete results including cosmology, end of 2012 Mission extended! Survey doubled, beginning October Mission extended! Survey doubled, beginning October
2010, ending end of 20112010, ending end of 2011