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Swift Naked Eye Telecon Visuals
09.10.08
Presenter 1: David Burrows
NASA Swift X-ray Telescope lead, Penn State

First slide from Burrows presentation
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Presenter 2: Judith Racusin
graduate student, Penn State

Gamma ray burst
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This sequence dissolves from Swift’s UVOT image to its XRT view of the "naked-eye" GRB. The burst was so intense it initially saturated both instruments. NASA/Swift/Stefan Immler

Racusin's figure 2
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This plot shows GRB 080319B's brightness as a function of time for the entire spectral range used in the analysis. The observations from gamma-ray through radio present the best set of data ever recorded for a GRB, clearly showing the bright gamma-ray and optical bursts and their smooth transition into the fading afterglow as the jets slow by running into surrounding stellar material. The different shapes of the optical and X-ray afterglows show the complex behavior that differentiates the jet components of the jets. Theoretical interpretation of the different components was possible only with the complete data. Image credit: Nature

This diagram shows how a two component jet model explains the timing and spectral evolution of GRB 080319B.
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This diagram shows how a two-component jet model explains the timing and spectral evolution of GRB 080319B. Internal shocks within the narrow jet gave rise to the prompt gamma-ray and optical emission. Had X-ray observations begun earlier, they would have detected this emission too. A forward shock develops when each jet component begins to strongly interact with gas surrounding the star. The narrower jet's forward shock developed about 10 times farther out than the wider jet's. Both create the afterglow emission. A reverse shock also travels back along each jet. Emission from the wide jet's reverse shock was detected. Credit: Nature

Still image from jet stream animation

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This animation shows how astronomers think GRB 080319B erupted. A narrow, ultrafast jet first punches through the star and is followed by a wider, less energetic jet. NASA/Swift/Cruz deWilde

Racusin PDF front cover

> Link to all slides in presentation (PDF format)

Presenter 3: Grigory Beskin,
Relativistic Astrophysics Group Head, Special Astrophysical Observatory

Swift imaged GRB 080319B with its UltraViolet and Optical Telescope on the left and Xray Telescope on the right.
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This movie shows images of GRB 080319B from the TORTORA optical camera. Measurements are interrupted briefly as TORTORA's host telescope slews to center on the burst. TORTORA/Sergey Karpov

The TORTORA camera is mounted atop the 0.6 m REM telescope at the European Southern Observatory
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Beskin PDF front cover

> Link to all slides in presentation (PDF format)


Presenter 4: Dieter Hartmann, ,
Professor, Clemson University

This presenter has no visuals.


Additional Visuals

This artist's concept shows the naked eye GRB close up.
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This artist's concept shows the "naked-eye" GRB close up. Observations suggest material shot outward in a two-component jet (white and green beams). Credit: NASA/Swift/Mary Pat Hrybyk-Keith and John Jones

Links to Bios and Visuals
> Biographies of the presenters
> Main Swift Naked Eye telecon page

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