Massimo LucianiApr 16, 2024

#astronomy #GammaRayBurst #supernova #GRB221009A

An article published in the journal "Nature Astronomy" reports a study on the gamma-ray burst cataloged as GRB221009A, the brightest ever detected, which confirms that it was caused by the collapse of a massive star, which subsequently exploded in a supernova.

https://english.tachyonbeam.com/2024/04/16/new-confirmation-the-brightest-gamma-ray-burst-ever-detected-was-caused-by-the-collapse-of-a-massive-star/

New confirmation that the brightest gamma-ray burst ever detected was caused by the collapse of a massive star

An article published in the journal 'Nature Astronomy' reports a study on the gamma-ray burst cataloged as GRB221009A, the brightest ever detected, which...

Miro CollasApr 14, 2024

Most Powerful Explosion Humanity Has Ever Seen Revealed a New Enigma - YouTube
https://www.youtube.com/watch?v=RHSoIDmolBE

#Astronomy #Cosmology #BOAT #BrightestOfAllTime #GRB221009A #GammaRayBurst

scinexx - das wissensmagazinNov 15, 2023
Gammastrahlenausbruch veränderte die Erdatmosphäre. Explosion in zwei Milliarden Lichtjahren Entfernung hatte Folgen für die Ionosphäre. #GRB #Ionosphäre #Gammastrahlenausbruch #Astronomie #Atmosphaere #GRB221009A
https://www.scinexx.de/news/kosmos/gammastrahlenausbruch-veraenderte-die-erdatmosphaere/
Gammastrahlenausbruch veränderte die Erdatmosphäre

Von wegen sichere Distanz: Selbst eine kosmische Explosion in zwei Milliarden Lichtjahren Entfernung kann messbare Effekte auf die Erdatmosphäre haben,

scinexx | Das Wissensmagazin
Benjamin Carr, Ph.D. 👨🏻‍💻🧬Jun 12, 2023
More detail on Brightest of All Time – #gammarays
Beams from brightest #gammaray burst ever seen were pointed directly at #Earth
Boffins puzzle over #GRB221009A's shape unlike any other #astronomical electromagnetic jets, it is a strange structure #astronomers have never seen before. "It is 70x brighter than any other gamma-ray burst discovered in over 50yr of observation." Part of reason why e explosion is so bright is because beams were directly pointed at Earth
https://www.theregister.com/2023/06/12/gamma-ray-burst/ #space
Beams from brightest gamma ray burst ever seen were pointed directly at Earth

Plus: Boffins puzzle over why GRB 221009A's shape is unlike any other astronomical electromagnetic jets

The Register
Massimo LucianiApr 4, 2023

#astronomy #cosmology #GammaRayBurst #GRB221009A

A special issue of "The Astrophysical Journal Letters" is focused on the gamma-ray burst cataloged as GRB221009A, indicated since the first estimates of its characteristics as the gamma-ray burst of the century.

https://english.tachyonbeam.com/2023/04/04/the-first-analyzes-of-the-most-powerful-gamma-ray-burst-ever-observed/

The first analyzes of the most powerful gamma-ray burst ever observed

A special issue of 'The Astrophysical Journal Letters' is focused on the gamma-ray burst cataloged as GRB221009A, indicated since the first estimates of its...

SupergrobiApr 2, 2023

Spannend, kommt ja nicht mehr so oft vor, dass es erstmal keine Erklärung gibt

#GRB221009A #Gammablitz #gammaray

Ntv mobil: Hellster Gammablitz aller Zeiten gibt Rätsel auf
https://www.n-tv.de/24025921

"Wir hatten extremes Glück": Hellster Gammablitz aller Zeiten gibt Rätsel auf

2022 trifft ein kurzer, aber gewaltiger Gammablitz die Erde. Ein seltenes Ereignis, das nur alle Tausend Jahre eintritt, schätzen Experten. Auslöser ist etwa die Explosion eines Sterns. Nach solchen Spuren suchen Astronomen allerdings vergeblich. Doch was ist dann passiert?

n-tv NACHRICHTEN
Bernd Sonneck 🌞Apr 1, 2023

Hellster #Gammablitz aller Zeiten gibt Rätsel auf

#GRB221009A

https://www.n-tv.de/wissen/Hellster-Gammablitz-aller-Zeiten-gibt-Raetsel-auf-article24025921.html

"Wir hatten extremes Glück": Hellster Gammablitz aller Zeiten gibt Rätsel auf

2022 trifft ein kurzer, aber gewaltiger Gammablitz die Erde. Ein seltenes Ereignis, das nur alle Tausend Jahre eintritt, schätzen Experten. Auslöser ist etwa die Explosion eines Sterns. Nach solchen Spuren suchen Astronomen allerdings vergeblich. Doch was ist dann passiert?

n-tv NACHRICHTEN
ᴄᴏʀʀᴀᴅᴏMar 31, 2023

The first #JWSTspectrum of the #GRB221009A afterglow

https://phys.org/news/2023-03-jwst-spectrum-grb-221009a-afterglow.html

The first JWST spectrum of the GRB 221009A afterglow

Gamma-ray bursts are the most energetic and luminous events known to occur in the Universe. Short-lived flashes of gamma rays that typically last from a a tenth of a second to less than an hour, gamma-ray bursts may for a brief period of time outshine entire galaxies. The explosions are believed to be caused by the collapse of massive stars, the collision of neutron stars, or the merging of a neutron star and a black hole.

Phys.org
Show threadAkaSci 🛰️Mar 29, 2023
Interestingly, the ESA Gaia space observatory, located at the L2 Lagrange point similar to JWST, detected the GRB 221009A burst.
Gaia does not have a particle detector, but it routinely counts tracks created by charged particles on one its detectors, so that they can be excluded from the astrometric data.
On Oct 9, 2022, the unusual signal, shown in the graph below was measured, which was puzzling until news of the GRB came out!
https://www.cosmos.esa.int/web/gaia/iow_20221109
#GRB #GRB221009A #Gaia
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IoW_20221109 - Gaia - Cosmos

Show threadAkaSci 🛰️Mar 29, 2023
Where is Gamma-Ray Burst GRB 221009A located in the night sky, as seen from Earth?
It is in the direction of the constellation Sagitta, close to the plane of the Milky Way (see skymap below).
Of course, it lies outside the Milky Way galaxy, 2.4 billion light-years away, while the Milky Way is only ~87,400 light years across.
Also, see graphic in previous post.
Skymap source: https://stellarium-web.org/
#GRB #GRB221009A #Astronomy
8/n
Stellarium Web Online Star Map

Stellarium Web is a planetarium running in your web browser. It shows a realistic star map, just like what you see with the naked eye, binoculars or a telescope.