1 / 11

Surveying the Galactic Plane with VERITAS and GLAST

Surveying the Galactic Plane with VERITAS and GLAST. Amanda Weinstein, UCLA Getting Involved with GLAST workshop May 22, 2007 UCLA. The EGRET Sky. The galaxy we used to know…. 20 MeV -~300 GeV. ~100 GeV - 50 TeV. GLAST and IACT Surveys. HESS 4-IACT array Galactic plane survey ’04 →

sileas
Télécharger la présentation

Surveying the Galactic Plane with VERITAS and GLAST

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. Surveying the Galactic Plane with VERITAS and GLAST Amanda Weinstein, UCLA Getting Involved with GLAST workshop May 22, 2007 UCLA

  2. The EGRET Sky • The galaxy we used to know…

  3. 20 MeV -~300 GeV ~100 GeV - 50 TeV

  4. GLAST and IACT Surveys HESS 4-IACT array Galactic plane survey ’04 → large catalog of new TeV sources VERITAS 4-IACT array Cygnus region survey (current)

  5. VERITAS Sky Survey • Survey with VERITAS-4 • ~200 hours over a 2-yr period (07-8) • Even coverage, sensitive to point sources at 5% of Crab flux • Minimal time budgeted for follow-up Cygnus region: 52<l<82, -1<b<4

  6. HESS Region 1 Gal Center Cygnus SNR (Green) TeV Sources 8218 225 EGRET (3EG) TeV Sources 1418 810 EGRET (GeV) TeV Sources 818 511 3932 18 246511 Extrapolation 5-11 Survey Speculations/Expectations • PWN: 3-4 high spindown loss-rate pulsars which meet HESS criterion for likely PWN detection • 11-12 X-ray sources • 5 HMXBs • 7 LMXBs • Confirmed TeV sources • MGRO sources • TeVJ2032 ROSAT TeV Sources

  7. 0.1 deg

  8. Implications Simulated GLAST data HESS data • Source identification • VERITAS angular resolution an advantage • TeV instruments less affected by diffuse background • Modelling emissions process in SNR • Microquasars (contemporaneous light curves) • PWNe • TeV instruments powerful tool for detecting & mapping unpulsed emission from PWNe SNR RX J1713.7-3946

  9. Cooperation • VERITAS will provide a TeV survey of Cygnus region • Joint source analysis, x-calibration valuable • From VERITAS side, follow-up critical • Light curves • Spectra • Follow-up time in 2009 likely to be comparable to time spent on survey itself. • Limited time for follow-up in 07/08

  10. Work with us! • Multi-wavelength input • Valuable for extracting science • Enormous impact on follow-up strategy. • Not only GeV, but radio, x-ray, optical. • We want to work with you. • If interested, please contact: • rene@astro.ucla.edu • amandaw@astro.ucla.edu

  11. Supporting Slide: VERITAS Survey Coverage • 0.8° sep. in galactic latitude, 1° longitude

More Related