Monday, September 27

supernova

agujero negro, Espacio, Estrella, explosión, formación, Noticias, supernova

Astronomers discover a new type of supernova | Digital Trends Spanish

A group of astronomers have found evidence that a black hole or a star of neurons spiraled into the nucleus of another and caused it to explode as a supernova, phenomena that had never before been identified. For this discovery, the team in charge used data from the VLASS (Very Large Array Sky Survey) sky observation project, which has as one of its objectives to find transient objects. According to astronomers at Caltech, it is normal for massive stars to explode as a supernova when their nuclear fuel runs out, but in this case, a black hole or neutron star caused the companion star to go supernova before weather. This discovery marks the first time that a supernova caused by a merger has been confirmed. Bill Saxton."Theorists had predicted that this could happen, but this is the first...
Devónico, Espacio, extinción, Noticias, supernova

Supernova caused one of the largest extinctions on Earth | Digital Trends Spanish

A supernova some 65 light-years away may have contributed to the depletion of the Earth's ozone layer, causing a major extinction about 359 million years ago. This is how researchers from the University of Illinois, which ensure that cosmic rays from one or more nearby supernovae could be to blame for at least one extinction event at the boundary between the Devonian and Carboniferous periods. The team focused on this period because the rocks contain hundreds of thousands of generations of plant spores, which appear to have been burned by ultraviolet light, evidence of a lasting event of Earth's ozone depletion. "Terrestrial catastrophes, such as large-scale volcanism and global warming, can also destroy the ozone layer, but the evidence for this is not conclusive for the time inte...
Espacio, estrellas, hubble, Meathook, NASA, Noticias, supernova

Look at the cosmic fireworks captured by Hubble | Digital Trends Spanish

They call it a Meathook for its irregular appearance: a broad base and a spiral much brighter than the other. It is scientifically known as galaxy NGC 2442 and has already been captured by the large astronomical telescopes on Earth, but this Monday the Hubble space telescope gave away one of the closest and sharpest images of Meathook, reported Digital trends. The galaxy is located about 50 million light years away, in the constellation Volans (Flying Fish) and is 75,000 light years across. According to astronomers at the European Southern Observatory (ESO), the distorted shape of the galaxy is most likely the result of a close encounter with a smaller and more hidden galaxy. In March 2015, Meathook was the site of a huge supernova - SN2015F - that glowed so long and ...
calcio, Espacio, Estrella, estrellas, huesos, Noticias, supernova

The calcium in our bones comes from an ancient star | Digital Trends Spanish

Half of the calcium in the universe, including that in your teeth and bones, came from an explosion of stars that scientists call a "calcium-rich supernova." This is the conclusion reached by a team of researchers from Northwestern University and which was published this week in The Astrophysical Journal. The place Futurism highlights that scientists examined the supernova, scientifically named SN2019ehk's, with X-ray images. These provided an unprecedented view of the star during the last month of its life and on its final explosion. Image of SN2019ehk's calcium-rich supernova AARON M. GELLER / NORTHWESTERN "By observing what this star did in his last month of life, before reaching his critical and tumultuous extreme, we peer into a place previously unexplored and that opens new a...