agile m. tavani inaf, roma, 15 dic. 2003. egret 30 mev-30 gev (1.8 tons) spark chamber tof...
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AGILE
M. Tavani
INAF, Roma, 15 dic. 2003
EGRET
EGRET
30 MeV-30 GeV
(1.8 tons)•Spark chamber
•TOF
•Calorimeter (NaI)
EGRET gamma-ray sky (>100 MeV)
EGRET Galactic Sources (>100 MeV)
Geminga
Vela pulsar
Galactic Center ?
Orion Cloud
3EG J1835+5918 (Isolated Neutron Star?)
3EG J0010+7309 (CTA 1 SNR?)
2CG 135+1 (LSI +61o303 ?)
-Cygni SNR ?
3EG J1837-0423 (unidentified transient)
Crab (pulsar & SNR)
AGNs detected above 30 MeV by EGRET
Strongest AGN γ-ray flare, but…
PKS 1622-287
GRBs and a subclass of Type Ic SNe (hypernovae: very broad spectral lines)
SN 1998bw - GRB 980425SN 2003dh - GRB 030329
GRBs from stellar explosions…
The mystery of the unidentified gamma-ray sources
• Excellent gamma-ray imaging with a large Field-of-View (2.5 sr)
• Simultaneous broad-band spectral information (15-40 keV, 30 MeV – 30 GeV)
• Microsecond timing• Efficient transient detection and alerts
AGILE: Italian Small Mission
EGRET AGILE
• AGILE, is an ASI Small Scientific Mission with crucial participation by IASF/INAF, INFN, CIFS
• Total satellite mass ~ 330 kg
• Scientific Instrument mass 120 kg
Scientific Institutes involved in the development of the AGILE Payload and Mission (PI: M. Tavani, IASF-Roma,
co-PI: G. Barbiellini, INFN, Ts)
• IASF - CNR, sez. Milano• IASF - CNR, sez. Bologna• IASF - CNR, sez. Roma • INFN- Sez. Trieste• INFN- Sez. Roma I• INFN- Sez. Roma II• Università di Trieste• Università di Roma “Tor Vergata”• Università “La Sapienza”• CIFS - Consorzio Interuniversitario per
la Fisica Spaziale (Torino)
AGILE: Attività in area romana
Contributi dell’AGILE Team dell’area romana
• Gestione scientifica dell’intera Missione• Realizzazione dell’imager-X (Super-Agile)• Sviluppo e test Data Handling• Sviluppo SW analisi dati X e gamma• Calibrazioni scientifiche• Supporto all’ASDC• Astrofisica X e gamma
Super-Agile: X-ray imaging (15-40 keV)
AGILE Engineering Model
Super-AGILE Team
• E. Costa IASF sez. Roma• M. Feroci IASF sez. Roma• I. Lapshov IKI, Moscow, and IASF sez. Roma• F. Lazzarotto CIFS Torino, and IASF-CNR sez.Roma• M. Mastropietro IASF sez. Roma• E. Morelli IASF sez. Bologna• L. Pacciani IASF sez. Roma
• G. Porrovecchio IASF sez. Roma• B. Preger IASF sez. Roma• M. Rapisarda ENEA, sez. Roma• A. Rubini IASF sez. Roma• P. Soffitta IASF sez. Roma• M. Del Monte IASF sez. Roma• M. Frutti IASF sez. Roma• L. Barbanera IASF sez. Roma
5
EM Super-Agile
Super-Agile: GRB detection capability
Alerts for GRB and other transients:AGILE Fast Link (ORBCOMM)
Super-Agile detection capability forGalactic sources Extragalactic sources
(1) optimal imaging capabilities and large FOV in the energy bands:
* 15 keV - 40 keV (Super-Agile) * 30 MeV - 50 GeV (GRID: Tracker+MCAL)
(2) Excellent X-ray/γ-ray timing (GPS)
(3) Burst search with large dynamic range (sub-milliseconds-60 seconds) and independent triggering of the Mini-Calorimeter (300 keV-100 MeV).
3 innovative features of AGILE:
GRID angular response vs. EGRET
AGILE Data Handling System
D A T A H A N D L IN G H A R D W A R E S O F T W A R E
G P S
S S A C
S T
M C A L
S A
G R ID : T R IG G E R 1 & 1 .5
R E A D O U T P R E -P R O C E S S IN G
B U R S T : M C A L B U R S T D A Q
S A B U R S T IM A G IN G
S A : P H O T O N -B Y -P H O T O N
G R ID : C L U S T E R ID
M C A L Z E R O -S U P P R E S S IO N
T R IG G E R 2
B U R S T : R IC E R C A D I B U R S T D E C O N V O L U Z IO N E
IM M A G IN I S A
T E L E M E T R I A
B U S
F A S T L IN K
O B T (r isp e tto a ll`U T C ): t < 2 µ s M a r c a tu r a te m p o r a le – G R ID : t < 2 µ s M a r c a tu r a te m p o r a le – S A , M C A L : t < 5 s R ic o str u z io n e d `a sse tto : ~ 1 a r c m in .
S ilic o n T r a c k e r : 3 6 8 4 4 c a n a li S u p e r -A G IL E : 6 1 4 4 c a n a li M in i-C a lo r im e tr o : 6 0 c a n a li A n tic o in c id e n za : 1 6 c a n a li
Data Handling and Analysis group
• M. Tavani IASF sez. Roma, and Univ. “Tor Vergata”• T. Froysland CIFS Torino, and INFN sez. Roma-2• P. Lipari Università “La Sapienza”,and INFN sez. Roma-1• A. Morselli Università “Tor Vergata”, and INFN sez. Roma-2• P. Picozza Università “Tor Vergata”, and INFN sez. Roma-2• C. Pittori Università “Tor Vergata”, and INFN, sez. Roma-2 • D. Zanello INFN sez. Roma-1, and Università “La Sapienza”
AGILE pointing strategy optimized with ground based observations (radio, optical, TeV)
Gamma-ray exposure (~1 year)
EGRET AGILE
~ 3·108 cm² s sr
(~4 yrs)
~ 3·109 cm² s sr
(~1 yrs)
Main science topics
• AGNs• Gamma-Ray Bursts• Pulsars• Unidentified gamma-ray sources• SNRs • X-ray transients, Galactic compact obj.• Millisecond transients and fundamental
physics
ANALISI DATITEORIA
ASTROFISICAAAE
PI-shipGESTIONE
TECNICA DI PAYLOADE SCIENTIFICA DI MISSIONI
R & D
REALIZZAZIONEPAYLOAD
1. HW realizzatoin casa
2. Supervisione contratti industriali
ATTIVITA’ DI AGILE
ASDC
Super-Agile Field of View (~1 sr)(on-axis sensitivity: ~5 mCrab @15 keV)
Super-AGILE effective area
Super-Agile sensitivity
Super-Agile sensitivity (10-40 keV)
GRID Effective Area
20-100 MeV
AGILE-GRID angular resolution
(Aeff * T)1/2 vs. Time (orbital phase) 20 < θ < 40, GLAST Upper-Tracker vs. AGILE
On-board GRID background rejection (Simulations by Cocco, Longo, Giuliani, Pellizzoni, Lipari,
Pittori, Tavani, 2000-2002)
Super-Agile mapping(Lapshov, Preger, Feroci, Soffitta, 2001-2002)
EGRET Cycle-1 pointings
AGILE gamma-ray spectral deconvolution (preliminary, A. Giuliani et al.)
F = 1/5 Crab
F= k (E/100) –
Assumed values:k= 2.4 10 –14
= 2
Fit values:k= 2.49 +0.38 –0.34
2.016+0.234 -0.196