Jets, Blazars and the EBL in the GLAST-EXIST Era

Journal Article · Thu Jul 12 04:00:00 EDT 2007 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2757303· OSTI ID:21067220

Grindlay, Jonathan E ^[1]

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1. Harvard-Smithsonian Center for Astrophysics, 60 Garden St., Cambridge, MA 02138 (United States)

The synergy of GLAST and the proposed EXIST mission as the Black Hole Finder Probe in the Beyond Einstein Program is remarkable. With its full-sky per orbit hard X-ray imaging (3-600 keV) and 'nuFnu' sensitivity comparable to GLAST, EXIST could measure variability and spectra of Blazars in the hard X-ray synchrotron component simultaneous with GLAST ({approx}10-100GeV) measures of the inverse Compton component, thereby uniquely constraining intrinsic source spectra and allowing measured high energy spectral breaks to measure the cosmic diffuse extra-galactic background light (EBL) by determining the intervening diffuse IR photon field required to yield the observed break from photon-photon absorption. Such studies also constrain the physics of jets (and parameters and indeed the validity of SSC models) and the origin of the >100 MeV gamma-ray diffuse background likely arising from Blazars and jet-dominated sources. An overview of the EXIST mission, which could fly in the GLAST ere, is given together with a synopsis of other key synergies of GLAST-EXIST science.

• OSTI ID: 21067220
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 921; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ABSORPTION
ASTROPHYSICS
BLACK HOLES
COMPTON EFFECT
COSMIC GAMMA SOURCES
COSMIC PHOTONS
COSMIC RAY DETECTION
COSMIC X-RAY SOURCES
GAMMA DETECTION
HARD X RADIATION
KEV RANGE
MEV RANGE
PROBES
SENSITIVITY
TELESCOPE COUNTERS