1 / 14

MAGIC Telescopes - Status and Results 2009/2010 -

MAGIC Telescopes - Status and Results 2009/2010 -. Isabel Braun Institute for Particle Physics, ETH Zürich for the MAGIC collaboration CHIPP Plenary Meeting 2010. The MAGIC Telescopes. MAGIC-2. Recording Cherenkov light from air showers induced by gamma-rays

kassia
Download Presentation

MAGIC Telescopes - Status and Results 2009/2010 -

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. MAGIC Telescopes- Status and Results 2009/2010 - Isabel Braun Institute for Particle Physics, ETH Zürich for the MAGIC collaboration CHIPP Plenary Meeting 2010

  2. The MAGIC Telescopes MAGIC-2 • Recording Cherenkov light from air showers induced by gamma-rays • Phase I (monoscopic) since 2004 • Phase II (stereoscopic) since fall 2009 • World‘s largest Cherenkov telescopes • mirror diameter: 17 m • field of view: 3.5 deg. • pixels: 577 (1) / 1039 (2) MAGIC-1 • Designed for • low energy threshold & fast repositioning CHIPP Plenary Meeting / September 24th, 2010

  3. The MAGIC Telescopes CHIPP Plenary Meeting / September 24th, 2010

  4. Imaging Atmospheric Cherenkov Telescopes primary g air shower Cherenkov light cone cos qc = 1/(b n) ~10 km • Large collection area • O(105m2) • Cherenkov “flash” • O(100 Phot./m2) • few ns duration • Background: • Noise of night sky • >108 Phot./m2 / s • Charged Cosmic Rays • ~ Factor 104 -105 ~100 m O(100 m)

  5. Imaging Atmospheric Cherenkov Telescopes primary g air shower focal plane: • trigger requires coincidence (“hardware stereo”) • Stereo improves: • angular resolution • energy resolution • background suppression • stability of the system Cherenkov light cone cos qc = 1/(b n) ~10 km ~100 m

  6. Stereo Performance stereo, preliminary • Sensitivity: 1.6% Crab (5s/50h) => 1% Crab • Energy resolution: 25% (RMS) =>15% • Direction: 0.1deg (s 2D Gauss) => 0.07deg (<0.025 deg. systematic) stereo, preliminary CHIPP Plenary Meeting / September 24th, 2010

  7. Fermi Overlap CHIPP Plenary Meeting / September 24th, 2010

  8. MAGIC science overview 2009/2010 Astronomer‘s Telegrams: 10.02.2010 M87 flare, initiating joined observations (~10% crab) 25.03.2010 IC 310 detection in 20 h (~2.5% Crab) 09.04.2010 M87 historic high (~20% Crab), together with VERITAS 19.06.2010 PKS 1222+21 / 4C +21.35 FSRQ, z=0.43, extremely bright (>30% Crab) 22.07.2010 1FGL J2001.1+4351 BL Lac, very bright (~20% Crab) Publications since last CHIPP Meeting: 3C 66 A/B two variable source candidates in field of view, both interesting Mrk 421 blazar, MWL S5 0716+714 blazar, detection, z=0.31 Mrk 501 blazar, MWL, low state PG 1553+113 blazar, MWL Perseus Cluster upper limit cluster & NGC 1275 OJ 287 blazar, MWL study Suzaku, no gammas despite flare -> IC LS I +61 303 gamma-ray binary, MWL, correlated X-Ray & VHE, leptons favored 3 pulsar/PWN search yielding upper limits Cygnus X-3 microquasar, MWL, upper limit AGN halo 2 Mrk blazars, emission pointlike CHIPP Plenary Meeting / September 24th, 2010

  9. Galactic: News from LS I 61+303 High mass X/gamma-ray binary system Discovered by MAGIC in 2006. Periodic VHE emission: (26.8 ± 0.2) days Evidence for X-ray / gamma correlation Swift MAGIC CHIPP Plenary Meeting / September 24th, 2010

  10. Extragalactic: Perseus Cluster g CDM g CDM • Galaxy cluster contains various possible sources CR p- p+ p0 g g Radio/ Seyfert 1.5 Galaxy NGC 1275 Astrophys. J. 710 (2010) 634 CHIPP Plenary Meeting / September 24th, 2010

  11. Head-Tail Radio Galaxy IC 310 • Fast movement through galaxy cluster • First of its type seen in VHE • Fermi: 2 photons in > 12 months • MAGIC: detected in 20h-> ATel #2510 (03/2010) NGC 1265, similar to IC310 courtesy of NRAO/AUI and C.O‘Dea & F.Owen CHIPP Plenary Meeting / September 24th, 2010

  12. STILL ALLOWED • EXCLUDED VHEEBL e+e- x x x EBL Distant AGN – EBL • most distant AGN detected at VHE: 3C 297 (FSRQ): z=0.5 • redetected in 2007 • second FSRQ (PKS 1222+21) @ z=0.43 detected -> ATel 06/2010 • detection of S5 0716+714 published, blazar @ z=0.31, 9% Crab => usable to constrain IR EBL • Probing EBL spectrum 0.2-2μm stars dust CMB CHIPP Plenary Meeting / September 24th, 2010

  13. Crab Mrk 501 Galactic Halos • extended extragalactic objects? • Comparison Crab (pointlike) with AGN => no extension => Limit on magnetic field strength Crab Mrk 421 CHIPP Plenary Meeting / September 24th, 2010

  14. Summary • MAGIC II: stereo observations for ~ 1 year • Stereo: • improved instument performance • 3 new sources detected • redetections & deep studies of many known sources • publications in preparation • Most sensitive instrument at 50-200 GeV • Best overlap with Fermi / LAT CHIPP Plenary Meeting / September 24th, 2010

More Related