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TESS Detects Bright, Long-Lasting Gamma-Ray Burst 5nvklj





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TESS Detects Bright, Long-Lasting Gamma-Ray Burst

Dragon
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TESS Detects Bright, Long-Lasting Gamma-Ray Burst Empty TESS Detects Bright, Long-Lasting Gamma-Ray Burst

Post by Dragon Sun May 16, 2021 8:21 am

Astronomers using NASA’s Transiting Exoplanet Survey Satellite (TESS) exoplanet-hunting mission have detected the rising and decaying optical afterglow of the gamma-ray burst event GRB 191016A.

GRB 191016A occurred on October 16, 2019, in a previously uncataloged galaxy in the northern constellation of Aries.

The gamma-ray burst was first detected by the Burst Alert Telescope (BAT) onboard NASA’s Neil Gehrels Swift Observatory.


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TESS Detects Bright, Long-Lasting Gamma-Ray Burst 334pu7m
Dragon
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Post by Dragon Sun May 16, 2021 8:23 am

TESS Detects Bright, Long-Lasting Gamma-Ray Burst Image_6198_1-High-Energy-Neutrino
Image credit: DESY / Science Communication Lab

An artist’s impression of a blazar.


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TESS Detects Bright, Long-Lasting Gamma-Ray Burst 334pu7m
Dragon
Dragon
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TESS Detects Bright, Long-Lasting Gamma-Ray Burst Empty Re: TESS Detects Bright, Long-Lasting Gamma-Ray Burst

Post by Dragon Sun May 16, 2021 8:25 am

TESS Detects Bright, Long-Lasting Gamma-Ray Burst Image_9621-GRB-191016A
Image credit: Smith

TESS full-frame image in the cadence just before the BAT trigger (left) and at the peak flux of the GRB 191016A burst (center); the emergence of the afterglow is apparent in the center of the image, indicated by the white arrow; the right panel shows the same region of the sky, with a slightly different orientation, in the Digitized Sky Survey (DSS); a small inset of TESS image is provided in the bottom left corner to demonstrate the change in orientation.


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TESS Detects Bright, Long-Lasting Gamma-Ray Burst 334pu7m
Dragon
Dragon
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TESS Detects Bright, Long-Lasting Gamma-Ray Burst Empty Re: TESS Detects Bright, Long-Lasting Gamma-Ray Burst

Post by Dragon Sun May 16, 2021 8:27 am



Hubble Studies High-Energy Gamma Ray Burst

New observations from the NASA/ESA Hubble Space Telescope have investigated the nature of the powerful gamma-ray burst GRB 190114C by studying its environment.

Hubble’s observations suggest that this particular burst displayed such powerful emission because the collapsing star was sitting in a very dense environment, right in the middle of a bright galaxy 5 billion light years away.


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TESS Detects Bright, Long-Lasting Gamma-Ray Burst 334pu7m

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