'Central engine' diaporamas de présentation

Launch Vehicles and Orbits

Launch Vehicles and Orbits. How Rockets Work. Newton's Laws of Motion are: An object at rest tends to remain at rest An object in motion tends to remain in motion For every action there is an equal and opposite reaction. Conservation of Momentum.

749 views • 64 slides

Radio properties of BAL quasars

Radio properties of BAL quasars. Takayuki HAYASHI (Univ. Tokyo , NAOJ/VLBI) Akihiro Doi (ISAS/JAXA) Hiroshi Nagai (ALMA/NAOJ). Broad Absorption Line (BAL) quasars Blue-shifted absorption line (e.g., C IV , Mg II ) at rest UV Many sources are found at z~2 It is broad :

544 views • 45 slides

The Intimate Relationship between High Energy Emission & Relativistic Jets in Radio-Loud AGNs

The Intimate Relationship between High Energy Emission & Relativistic Jets in Radio-Loud AGNs. Alan Marscher Boston University Research Web Page: www.bu.edu/blazars. Main Collaborators. Svetlana Jorstad (Boston University) Margo Aller (University of Michigan)

534 views • 41 slides

On the progenitors of (Long) GRBs ??????????????

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A GRB in a slide

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High energy (20MeV-TeV) photon emission from Gamma-ray Bursts

High energy (20MeV-TeV) photon emission from Gamma-ray Bursts. Yi-Zhong Fan (Niels Bohr International Academy, Denmark; Purple Mountain Observatory, China ). Collaborators: Tsvi Piran, Ramesh Narayan, Da-Ming Wei, Bing Zhang ( Fan & Piran 2008, arXiv:0805.2221 ).

420 views • 32 slides

Spaceflight I

Spaceflight I. Leaving Earth. How Rockets Work. Newton's Laws of Motion are: An object at rest tends to remain at rest An object in motion tends to remain in motion For every action there is an equal and opposite reaction. Conservation of Momentum.

394 views • 31 slides

Recent Advances in our Understanding of GRB emission mechanism

459 views • 31 slides

Recent Advances in our Understanding of GRB emission mechanism

311 views • 31 slides

The signature of the CE in the weakest relativistic explosions

293 views • 29 slides

Theory of TeV AGNs

(Buckley, Science, 1998). Theory of TeV AGNs. Amir Levinson, Tel Aviv University. Open questions. What rapid variability tells us about the central engine? Implications for kinematics of the source ? Where is the location of the VHE emission zone ? Emission mechanisms ?

386 views • 28 slides

VLBA Imaging of the ? -ray Emission Regions in Blazar Jets

293 views • 16 slides