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T. Courvoisier First results of INTEGRAL 1
First Results of INTEGRAL
INTEGRAL was launched on October 17 2002 by a Proton Rocket from Baikonour
INTEGRAL had beenproposed in 1989,accepted in 1993 byESA
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T. Courvoisier First results of INTEGRAL 1
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T. Courvoisier First results of INTEGRAL 1
INTEGRAL is an ESA mission with Russian launcherand one US ground station (part time)
Instruments provided throughnational funding.
Bus is identical to XMM-Newton
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T. Courvoisier First results of INTEGRAL 1
INTEGRAL is on a3-days orbit with apogeeat 150 000 km and perigeeat 10 000 km.
Maximises time outside the electron belts
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T. Courvoisier First results of INTEGRAL 1
High energy instruments are based on coded mask optics:
IBIS tungsten mask in constructionCoded mask principle
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T. Courvoisier First results of INTEGRAL 1
3C 273 shadowgrammeCrab shadowgramme
ISGRI shadowgrammes for single pointings
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T. Courvoisier First results of INTEGRAL 1
SPI: spectrometer resolution 500angular resolution 2.7 degreescontinuum sensitivity: 1.2E-6 ph/cm2skeV
19 cooled Germanium detectors
Pis: J.-P Roques (CESR), V. Schoenfelder (MPE). Vedrenne et al. A+A in Press
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T. Courvoisier First results of INTEGRAL 1
IBIS: Imager resolution 12'sensitivity: 6E-7ph/scm2keV at 100keV (ISGRI)
2 detector planes: ISGRI, 16384 CdTe detectors PICSIT, 4096 CsI detectors
Pis: P. Ubertini (IAS), F. Lebrun (CEA). Ubertini et al. A+A in press
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T. Courvoisier First results of INTEGRAL 1
JEM-X extends the energy coverage down to 5 keVPI: N.Lund (DSRI), Lund et al. A+A in press
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T. Courvoisier First results of INTEGRAL 1
OMC provides optical (V) coverage of sources in the FOVPI: M. Mas-Hesse (LAEFF), Mas-Hesse et al. A+A in press
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T. Courvoisier First results of INTEGRAL 1
Main instrument characteristics
E-range E-resolution FOV(deg) ang.Res.
SPI 20keV-8MeV 500 16 2.5 degIBIS 15keV-10MeV 9 9 12'JEM-X 5KeV-30keV 10 4.8 3'OMC V --- 5 17''
FOV: Fully coded area diameter or side of squareang.Res of OMC is the pixel sizePoint source location considerably better than the angular resolution
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T. Courvoisier First results of INTEGRAL 1
INTEGRAL sensitivity compared with previous instruments
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T. Courvoisier First results of INTEGRAL 1
INTEGRAL sensitivity compared with previous instruments
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T. Courvoisier First results of INTEGRAL 1
The INTEGRAL Science Data Centre (ISDC) Courvoisier et al. A+A in press
Link between the data and the community
All data (120 kbits/s) are processed at the ISDC:-in real time (few seconds after receipt on the ground) to detect gamma ray bursts and inform the community (IBAS, Merehetti et al. A+A in press)-in near real time (within few hours) to detect new or very variable sources-offline to produce a set of standard products
The data are archived and distributed (at present 1.5-2 months after the observation)to the observers
Analysis tools are provided to the community
http://isdc.unige.ch gives access to the ISDC services
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T. Courvoisier First results of INTEGRAL 1
The INTEGRAL Science Data Centre
Consortium institutes, there isclose collaboration with inst. teams
ISDC hosted by Geneva Observatory, 35 staff workin Versoix near geneva
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All data are transferred to ISDC and are analysed there.
European Space Operations Center
Darmstadt
ISDC
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T. Courvoisier First results of INTEGRAL 1
Observation programme: 30% core programme AO-1 70% open programme
AO-1 in progress, AO-2 starts January 1, 2004
Exposure map (ISGRI fully coded FOV) revolutions 1-100
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T. Courvoisier First results of INTEGRAL 1
Structure of the scans
Distribution of scans in the plane
Core programme: Galactic plane scans, every 12 days
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T. Courvoisier First results of INTEGRAL 1
Core programme: Galactic center deep exposure (Ao-2)
This is intended to: -monitor and detect compact sources-to map electron-positron annihilation map-to map Aluminium emission
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T. Courvoisier First results of INTEGRAL 1
INTEGRAL Status:
The instruments function very well
The observation programme is progressing as expected.
The observation efficiency is short of few percent of the optimum
The data reach the ISDC in a matter of seconds for near realtime analysis
The data reach the observers in about 6 weeks -2months.
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T. Courvoisier First results of INTEGRAL 1
Cygnus X-1 early images
ISGRI 15-40 keV SPI
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T. Courvoisier First results of INTEGRAL 1
Cygnus X-1 Observations in PV phase (Pottschmidt et al. A+A in press):
RXTE and INTEGRAL data obtained simultaneouslyrevolutions 11,14,16,18,25 (November 16-December 29)
Cygnus X-1 switched from soft to hard state mid October 2002
Counts spectra.
RXTE-PCA
IBIS/ISGRI
RXTE-HEXTE
SPI
JEM-X
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T. Courvoisier First results of INTEGRAL 1
Model Fit: Disk+Comptonised component+reflection hump
Parameters: KTe = 62keV, τ = 1, reflection: 0.2 similar for all revolutions,
in agreement with previous descriptions.
Instruments agree very well apart from the normalisations.
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T. Courvoisier First results of INTEGRAL 1
IGR J16318-4848Discovered January 29 2003 in scan of the Galaxy. Observed in subsequent pointed observation and by XMM-Newton
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T. Courvoisier First results of INTEGRAL 1
IGR J16318-4848: strongly absorbed (NH = 2 1024 cm-2)strong Fe line at 6.4 keV (EW of 2.1 keV), variable
Preferred interpretation:
1036 ergs/s high mass X-ray binary at distanceof centre of the Galaxy.
Possible strong contributionto the X-ray background.
Walter et al. A+A in pressMatt+Guainazzi, 2003Revnivtsev et al. AL in press
XMM-Newton INTEGRAL
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T. Courvoisier First results of INTEGRAL 1
There are 11 published bright sources discovered byINTEGRAL in the first half of galactic centre observationsof the core programme.
Some are transients, some present but very weak in earlier datavariable, often absorbed.
Many more to come
courtesy Walter, ISDC
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T. Courvoisier First results of INTEGRAL 1
Low Mass X-ray Binaries during core programme(Paizis et al. A+A in press)
ISGRI 20-40 40-60 keV
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T. Courvoisier First results of INTEGRAL 1
GX17+2, comptonised black body, evidence foradditional flux at 100 keV?
JEM-X and ISGRI: 1pointing
SPI: combined data.
Seen in black hole candidates (Gerlinski et al. 1999), but GX17+2 is a bursting source.
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T. Courvoisier First results of INTEGRAL 1
Le micro-quasar GRS 1915+105
D. Hannikainen et al.
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T. Courvoisier First results of INTEGRAL 1
Core Programme composite map (revolutions 40-67), max exp:790ks
1216 pointings, ISGRI 15-40 keV, Courtesy R. Walter, ISDC
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T. Courvoisier First results of INTEGRAL 1
Central regions:
0
0
10 degrees
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T. Courvoisier First results of INTEGRAL 1
Central regions:Le centre de notre galaxie: Sgr A*
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T. Courvoisier First results of INTEGRAL 1
3C 273: bright quasar, monitored by INTEGRAL Courvoisier et al. In press
20-40 keV significance map, insert: flux image GRS 1227+025 (Jourdain et al. 1992)not seen at less than ½ 3C 273.
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T. Courvoisier First results of INTEGRAL 1
3C 273 INTEGRAL,XMM-Newton, RXTEJanuary 03
ratio of normalisations toXMM PN camera:
RXTE-PCA: 1.34+-.02RXTE-HEXTE: 1.05+-.06JEM-X: 0.61+-.05ISGRI: 1.76+-.2SPI: 0.95 +-.3
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T. Courvoisier First results of INTEGRAL 1
Using the cross calibration:continuum single power lawGamma = 1.74+-0.015,Norm. at 1keV: 2.24+-0.05 10-2
ph/cm2skeV
Weaker and steeper than previously
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Big Bang
Hydrogène + Helium
Fer 60 : ~ 2 000 000 ansAluminium 26 : ~ 1 000 000 ansTitane 44 : ~ 90 ansSodium 22 : ~ 4 ansCobalt 56, 57 : ~ 100, 400 joursNickel 56, 57 : ~ 8, 2 jours
Genèsedes
éléments
Tous les autres élémentsfabriqués dans les étoiles,dont certains sont radioactifs
Étoiles
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T. Courvoisier First results of INTEGRAL 1
GAMMA Ray bursts: 6 in the IBIS Field of view.
Localisation to 2-4 arcminutes.
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T. Courvoisier First results of INTEGRAL 1
Burst positions are sent automatically to the communityby the IBAS system (Mereghetti et al. A+A in press)Best performance to date:
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T. Courvoisier First results of INTEGRAL 1
Conclusion
INTEGRAL is up and well, data are flowing, the programme evolves as expected.
Special issue of A+A letters in preparation
AO-2 deadline is September 5......
Mission extension beyond end 2004 willbe discussed by ESA-SPC in November
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