Download New results from MAGIC

MAGIC
M.Teshima
MPI für Physik, München
(Werner-Heisenberg-Institut)
for MAGIC collaboration
MAGIC Telescope
17 m diameter parabolic reflecting surface (240 m2 )
high reflective diamond milled aluminum
mirrors Active mirror control
(PSF: 90% of light in
0.1o inner pixel)
Light weight
Carbon fiber
structure for
fast repositioning
- 3.5o FOV camera
- 576 high QE PMTs
(QEmax= 30%)
Analog signal transport
via optical fibers
IPE
IPE
IPE
NET
CE
3-level trigger system
& 300 MHz FADC system
Highlights of MAGIC observations
in Cycle 1 (last one year)
Crab Nebular
SZA & LZA
Galactic Center
HESS J1813
HESS J1834
13CO cloud
Mrk421 (0.031) Mrk501 (0.034)
1ES2344 (z=0.044) 1ES1959 (0.047)
IAU Circular #8562
LSI+61 303
Micro-Quasar
GRB050713a
GRB050904
(in prompt
phase)
1ES1218 (z=0.18) PG 1553 (Z>0.25)
New Source
New source
Crab Nebula
Preliminary
Galactic Center
HESS J1813-178
Dark Particle Accelerator -- SNR
Gamma-Ray Emission Processes
 E 1.6
E
2.2
 E 1.6
 E 2.2
 E 2.2
 E 2.2
2
4
 dE 
    T c γmax Uphoton
 dt I.C. 3
2
2 B
4
 dE 
  T cγ
 
max 2
 dt Sync 3
HESS J1834
extended source
VLA 20cm Radio
Molecular Cloud 13CO
TeV micro-quasar
LS I +61 303
In periastron
In 0.2~0.5 from periastron
LS I +61 303
X-Ray Binary System
with Radio jet
26.5 days orbital period
Distance ~2kpc
Intensities as a function of orbital
phase (26.5days orbital period)
Energy Spectrum
LS I +61 303
Extra galactic sources
AGNs
M87
Extragalactic sources
Spectral Indices of new sources range 3~4
Spectral Index
2.9
2.2
2.4
2.9
2.4
4.0
3.3
3.3
3.1
3.0
2.9
4.0
Spectral Index
Source
Redshift
M87
0.004
Mkn 421
0.031
Mkn 501
0.034
1ES 2344+514
0.044
1ES 1959+650
0.047
PKS 2005-489
0.071
PKS 2155-304
0.116
H1426+428
0.129
H2356-309
0.165
1ES 1218+304
0.182
1ES 1101-232
0.186
PG 1553
>0.25
First objects
Type BL Lac
Confimation
Detection
FR
I
HEGRA
HESS
4.5
PG1553
BL LacPKS2005
Whipple
Many
4.0
BL Lac
Whipple
Many
BL Lac
Whipple
HEGRA,MAGI
3.5
C
BL Lac
Tel. Array
Many
BL Lac
HESS
3.0
BL Lac
Mark VI
HESS
2.5
BL Lac
Whipple
Many
BL Lac
HESS
2.0
BL Lac
MAGIC
1.5
BL Lac
HESS
0.1
0.3
0.4
BL0Lac
HESS 0.2
MAGIC
Redshift Parameter z
Absorption of
gamma rays in the universe
Pair Creation; γ＋γ  e+ + e-
The SSC framework
Higher Z  Higher source luminosity  Lower IC peak  softer spectrum
X-ray intensity at 1keV
PG 1553 6.5 μJy z~0.3
Mrk421 9.9 μJy z=0.03
Mrk501 9.4 μJy z=0.03
PG1553’s source luminosity ~100 x Mrk
BL Lac objects
5.0
2005
4.5
1553
Spectral Index
4.0
3.5
2344
3.0
2.5
2.0
1.5
0.50
Fossati et al. 1998
1.00
1.50
2.00
2.50
Log (X-ray source Luminosity)
3.00
Mrk421 (z=0.031)
AGN (Blazar)
Mrk501 Giant flare
2005 July 01, IAU Circular #8562
2min resolution
Light curve
1ES1218+304
(z=0.182)
Soft Energy Spectrum
Preliminary
PG 1553
(z>0.25 unknown)
Very Soft energy spectrum
the attenuation by pair creation
or nature of SSC mechanism
MAGIC  Z < 0.58
GRB observation by MAGIC
Uniformity
GLAST
Pulse Duration
MAGIC
“long”
“short”
~10sec GRB trigger Satellite to MAGIC
~20sec MAGIC slewing time
MAGIC made an observation in the period of the
main prompt emission!!
But we knew later z = 6.3
Summary
MAGIC Sources



We have seen ~15 sources including several new sources
Micro-Quasars are playing an important role as a source of galactic
cosmic rays
New 100GeV HBLs show steep spectra
The attenuation by e+- creation
The nature of SSC mechanism

GRB observations
2 among 9 observations were done in prompt phase
Eventually MAGIC may see VHE gammas from GRBs
Second telescope MAGIC-II is under the construction in La Palma

Next year we will start stereo observation  2 times better sensitivity 
number of sources may increase ~50
HESS and MAGIC people are planning CTA after HESS and MAGIC
experiment


10 times better sensitivity than HESS and MAGIC
1000 VHE sources in norhtern and southern hemisphere
March 2006
By W.Hofmann
∝Ntel
50hrs
∝Area
Background Limited
Signal Limited
Kifune’s Plot
(my optimistic expectation)
GLAST
AGILE
~3000 sources
by GLAST, AGILE
~1000 sources
by CTA