'Gamma ray emission' presentation slideshows

The Primary Output of GRBs David Eichler

849 views • 73 slides

Nuclear Chemistry

Nuclear Chemistry . Chapter 10. Alpha, Beta, and Gamma Rays. Radioactive elements emit three types of radiation Alpha Beta Gamma Rays. Alpha particles. Alpha particles carry a positive two charge and are composed of 2 protons and 2 neutrons.

701 views • 48 slides

AGILE observations of Crab (and other pulsars)

605 views • 44 slides

Radioactivity

Radioactivity. Prepared by: Timothy John D. Matoy. RADIOACTIVITY. Process of loosing energy to reach a stable state. Radioactivity and Radioactive Decay. The nuclei of some nuclides are not stable

731 views • 41 slides

Gamma-Ray Bursts

Gamma-Ray Bursts. Brian McBreen. Short and Long GRBs. Short GRBs (T 90 < 2s) Tend to be spectrally harder; i.e. have a higher proportion of high-energy ?-rays relative to low-energy ?-rays. Long. Short. Long GRBs (T> 2s)

512 views • 38 slides

Radio-quiet Isolated Neutron Stars (RQINs)

Radio-quiet Isolated Neutron Stars (RQINs). Jeng-Lwen, Chiu Institute of Astronomy, NTHU 2004/09/30. Outline. Neutron stars AXPs & SGRs CCOs XDINs (with RX J1856.5-3754) Comparison Others Future work. Neutron stars. Introduction. INS = Isolated (non-binary) Neutron Stars

444 views • 27 slides

Gamma-Ray Emission from Core-Collapse SNRs Don Ellison, NCSU

Gamma-Ray Emission from Core-Collapse SNRs Don Ellison, NCSU. Co-workers for cr-hydro-NEI code: Andrei Bykov, Herman Lee (poster) , Hiro Nagataki, Dan Patnaude, John Raymond, Pat Slane. SNR RX J1713. SNR RX J1713. Abdo et al 2011. Fukui et al 2012. HESS. Fermi LAT.

361 views • 23 slides

On the Emission Site of Gamma Rays from Pulsars Hsiang-Kuang Chang and Cheng Ho

On the Emission Site of Gamma Rays from Pulsars Hsiang-Kuang Chang and Cheng Ho. ??? ?????????. Gamma-Ray Pulsars. Their spectra. (Thompson et al. 1999). Models. Polar-cap Outer-gap. (Harding 2000). Power-law Spectra. (Nolan et al. 1996). Photon Indices. Assumption.

320 views • 21 slides

Nuclear Structure and Radioactivity

Nuclear Structure and Radioactivity . Atomic Notation Review. Example:. Element: Radon # protons: 86 # neutrons: 136 # electrons: 86. We can use a similar notation for protons, neutrons, electrons and positrons (positively charged electrons): Protons : Neutrons :

396 views • 19 slides

Blazars: the gamma-ray view of AGILE

290 views • 17 slides

High-Energy Studies of Gamma-Ray Binaries

275 views • 14 slides

Radio Loud Quasars and GLAST

Radio Loud Quasars and GLAST. Aneta Siemiginowska Harvard-Smithsonian Center for Astrophysics. Opt-UV. LBL. HBL. LBL. FSQR. HBL. Compton. SYN. Blazar Sequence: FSRQ ?. Donato et al 2000. X-rays vs. Gamma-ray Emission. Unified picture :. What process dominates X-ray emission?

170 views • 7 slides