Post by Andrei Tchentchik on Jan 31, 2020 10:40:43 GMT 2
(.#377).- A star dies and turns into a black hole or supernova.
A star dies and turns into a black hole or supernova.
January 13, 2019.
After observing an unusual explosion in the sky, astronomers took several months to examine a sudden flash of light at least 10 times brighter than a typical supernova and felt they had observed a "dying" star.
The small NASA NuSTAR X-ray space telescope would have for the first time obtained photos of a celestial object that was dying before turning into a black hole or supernova.
Astronomers have published the results of their observations and research in the journal Astrophysical Journal. They observed a flash that they see as the birth of a supernova, but these observations, in this case, challenge current knowledge about stellar death processes.
TWEETER
NRAO
@thenrao
Supernova, Hypernova or Tidal Disruption Event? New class of cosmic explosion--AT2018cow--perplexes astronomers. 📡 Scientists use a multi wavelength approach--gamma rays to radio waves--to study unusually bright source, including both #ALMA and the #VLA.https://public.nrao.edu/news/mysterious-cosmic-blast/#PRimage1 …
NRAO
@thenrao
Supernova, Hypernova or Tidal Disruption Event? New class of cosmic explosion--AT2018cow--perplexes astronomers. 📡 Scientists use a multi wavelength approach--gamma rays to radio waves--to study unusually bright source, including both #ALMA and the #VLA.https://public.nrao.edu/news/mysterious-cosmic-blast/#PRimage1 …
An unusual lightning flash illuminated the sky in June 2018 and it took astronomers some time to understand what they were looking at. An object with the name AT2018cow has gone from a state of inactivity to a peak of peak activity in just a few days.
"In X-rays, this flash gathered at a normal black hole or a neutron star absorbing matter. On the other hand, in some parts of the spectrum, he looks very different. As a result, we assume we have been able to observe the birth of a small object in real time, "said Raffaella Margutti of Northwestern University in Evanston.
TWEETER
Peter Rudl
@apho66
AT2018cow
TWEETER
Texas Tech Media
@texastechmedia
#TexasTech researchers discovered peculiar X-ray characteristics of AT2018cow, an unusual transient source, and suggest it was likely an uncommon core collapse supernova. @ttuartssciences @texastechsps bit.ly/2AFVKPp
When a celestial object reaches the end of life, usually a great explosion occurs which results from the birth of a supernova which is accompanied by a brief but extraordinarily large increase in brightness. On the other hand, sometimes, at the end of life, the star, instead of giving birth to a supernova, turns into a black hole.
Astronomers, intrigued by the nature of celestial objects that is not yet sufficiently studied during their formation and at the end of their existence, continue to observe the sky in the hope of recording these rare moments.
F I N .
A star dies and turns into a black hole or supernova.
January 13, 2019.
After observing an unusual explosion in the sky, astronomers took several months to examine a sudden flash of light at least 10 times brighter than a typical supernova and felt they had observed a "dying" star.
The small NASA NuSTAR X-ray space telescope would have for the first time obtained photos of a celestial object that was dying before turning into a black hole or supernova.
Astronomers have published the results of their observations and research in the journal Astrophysical Journal. They observed a flash that they see as the birth of a supernova, but these observations, in this case, challenge current knowledge about stellar death processes.
TWEETER
NRAO
@thenrao
Supernova, Hypernova or Tidal Disruption Event? New class of cosmic explosion--AT2018cow--perplexes astronomers. 📡 Scientists use a multi wavelength approach--gamma rays to radio waves--to study unusually bright source, including both #ALMA and the #VLA.https://public.nrao.edu/news/mysterious-cosmic-blast/#PRimage1 …
NRAO
@thenrao
Supernova, Hypernova or Tidal Disruption Event? New class of cosmic explosion--AT2018cow--perplexes astronomers. 📡 Scientists use a multi wavelength approach--gamma rays to radio waves--to study unusually bright source, including both #ALMA and the #VLA.https://public.nrao.edu/news/mysterious-cosmic-blast/#PRimage1 …
An unusual lightning flash illuminated the sky in June 2018 and it took astronomers some time to understand what they were looking at. An object with the name AT2018cow has gone from a state of inactivity to a peak of peak activity in just a few days.
"In X-rays, this flash gathered at a normal black hole or a neutron star absorbing matter. On the other hand, in some parts of the spectrum, he looks very different. As a result, we assume we have been able to observe the birth of a small object in real time, "said Raffaella Margutti of Northwestern University in Evanston.
TWEETER
Peter Rudl
@apho66
AT2018cow
TWEETER
Texas Tech Media
@texastechmedia
#TexasTech researchers discovered peculiar X-ray characteristics of AT2018cow, an unusual transient source, and suggest it was likely an uncommon core collapse supernova. @ttuartssciences @texastechsps bit.ly/2AFVKPp
When a celestial object reaches the end of life, usually a great explosion occurs which results from the birth of a supernova which is accompanied by a brief but extraordinarily large increase in brightness. On the other hand, sometimes, at the end of life, the star, instead of giving birth to a supernova, turns into a black hole.
Astronomers, intrigued by the nature of celestial objects that is not yet sufficiently studied during their formation and at the end of their existence, continue to observe the sky in the hope of recording these rare moments.
F I N .
