Thursday, September 23

Estrella

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...
Espacio, Estrella, estrellas, Noticias, planetas, Sistema Solar, sol

Sun-like stars devour planets | Digital Trends Spanish

New research by Italian astronomers found that large numbers of Sun-like stars have devoured some of the planets around them. The study was published in Nature Astronomy and led by Lorenzo Spina, an astrophysicist at the Astronomical Observatory of Padua, in Italy. One of the main results indicates that up to a third of stars similar to ours have already swallowed their planets. According to the authors, this discovery could help rule out star systems that no longer contain Earth-like worlds. According to the researchers, when a planet is eaten, its heavy elements, such as iron, silicon and titanium, are scattered through the outermost layers of the star, and can be detected by astronomers looking for their own light absorption signals. of those elements. "If a star is abnormally rich i...
astrónomos, cuerpo, Espacio, Estrella, estudio, hallazgo, Noticias, objeto, observatorios, radiotelescopio, superplaneta, telescopio

First superplanet detected with a radio telescope | Digital Trends Spanish

An international team of astronomers has detected for the first time a cold brown dwarf, also known as a superplanet or failed star, using a radio telescope. The discovery, which was designated BDR J1750 + 3809, is the first substellar object to be detected through radio observations. Until now, brown dwarfs have largely been found from studying the infrared sky. The superplanet, also called Elegast, was first identified using data from the Low Frequency Array Telescope (LOFAR) in the Netherlands, and was later detected by a pair of observatories on Mauna Kea on the island of Hawaii. ASTRON / DANIELLE FUTSELAAR Finding such bodies with radio telescopes is a breakthrough, because it shows that astronomers can detect objects that are too cold and faint to be discovered in infrared st...
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...