This 7 Hour Cosmic. A cosmic explosion lasting 7 hours is being hailed as the longest gamma-ray burst ever seen.
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Gamma-ray bursts (GRBs) are extraordinary events in which massive stars collapse and explode, releasing an enormous amount of energy into space.
A gamma-ray burst is an extremely powerful release of energy that occurs when a massive star collapses or when two ultra-dense objects such as neutron stars or black holes collide.
Researchers are scrambling to understand the origin of this extraordinary event, with some speculating that it could be associated with an elusive class of black hole known as a supermassive black hole.
Unprecedented Cosmic Explosion
This is certainly an outburst unlike any other we’ve seen in the past 50 years.
The gamma-ray burst, dubbed AT2019dsg, was discovered by the Zwicky Transient Facility (ZTF) on September 2, 2019, and is believed to have originated from a distant galaxy known as PGC 2806709.
GRBs are typically short-lived, lasting only a few seconds to minutes, but AT2019dsg defied expectations by lasting a whopping 7 hours, making it the longest-duration GRB ever observed.
- Originated from a distant galaxy known as PGC 2806709.
- Lasted 7 hours, making it the longest-duration GRB ever observed.
Scientists are using a combination of observations from space and ground-based telescopes to study the properties of this extraordinary event, including its distance, energy output, and the type of object that produced it.
Early results suggest that AT2019dsg could be one of the closest GRBs to have occurred in recent history, with estimates suggesting it occurred around 250 million light-years away.
A Potential Supermassive Black Hole?
One theory being considered is that AT2019dsg could be associated with an elusive class of black hole known as a supermassive black hole (SMBH).
SMBHs are incredibly massive black holes that are thought to reside at the centers of many galaxies, including our own Milky Way.
These objects are responsible for regulating the growth of galaxies, and their discovery could have major implications for our understanding of the evolution of the universe.
While it’s still early days for this investigation, scientists are cautiously optimistic that AT2019dsg could be the first-ever observation of a SMBH.
Further Research
Researchers will continue to study AT2019dsg in the coming months and years, refining their understanding of this extraordinary event and its potential connections to supermassive black holes.
By combining observations from space and ground-based telescopes, they aim to answer a multitude of questions, including:
- What is the exact distance to AT2019dsg?
- How did this remarkable event occur?
- Is it associated with a supermassive black hole?
Stay tuned for further updates on this extraordinary cosmic explosion, and don’t miss our latest feature on gamma-ray bursts.
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TAGS: supermassive black holes, gamma-ray bursts, AT2019dsg
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SEO_TITLE: Longest gamma-ray burst ever observed: Could it be a supermassive black hole?
SEO_DESC: A team of researchers have discovered a 7-hour cosmic explosion that has left them stunned. Could this extraordinary event be linked to a supermassive black hole?
FOCUS_KW: supermassive black holes
