Thursday, September 23

astrónomos

alma, astrónomos, Big Bang, Chile, dos galaxias ocultas, Espacio, estrellas, galaxias, Noticias, polvo estelar, universidad de chile

Two galaxies hidden by stardust have been discovered | Digital Trends Spanish

An international team of astronomers discovered two galaxies that existed in a period of the universe close to the Big Bang. Valentino González, an astronomer from the Faculty of Physical and Mathematical Sciences of the University of Chile, pointed out: "We discovered two galaxies that had an impressive amount of dust, they were literally hidden / covered from a normal optical observation, that is why it was thanks to the ALMA radio observatory, with its sophisticated equipment, that we were able to discover them." Stardust is a set of particles made up of various chemical compounds, which can be found in almost all galaxies. University of Chile.However, their formation takes time and is not expected to be as abundant at the 700 million years of the universe (which is the time in which...
alma, astronomía, astrónomos, Chile, ciencia, Espacio, Features, José Maza, Marte, mes de la herencia hispana 2021, tecnología

José Maza, astronomer: approach science from the everyday | Digital Trends Spanish

In recent years, José Maza has become a recurring figure in the Chilean media. The astronomer, a national prize for Exact Sciences, has played an important role in bringing science and astronomy closer to the inhabitants of his country, particularly the youngest. This has been achieved through the publication of several books, including We are stardust and Mars: the next frontier, and the realization of massive scientific dissemination events that have brought together thousands of attendees. CONICYTAs part of Hispanic Heritage Month, which runs from September 15 to October 15, we spoke with the scientist about the importance of science, education and technology in Latin America, in addition to space exploration and his latest book, Drawing the cosmos. "It was a book that I wanted to wr...
alma, astrónomos, Chile, Desierto de Atacama, discos protoplanetarios, Espacio, estrellas jóvenes, Noticias, planetas

Organic molecules detected in 5 protoplanetary disks | Digital Trends Spanish

Using the ALMA telescope, located in the Atacama desert (northern Chile), a group of astronomers has managed to map 18 organic and inorganic molecules in protoplanetary discs of five young stars. These would be IM Lup, GM Aur, AS 209, HD 163296 and MWC 480, and the new maps show that the chemical substances of these discs are not located uniformly in each of them, but that each disc is like a " different soup of planetary ingredients ”. These results suggest that planet formation occurs in diverse chemical environments and that, as they form, each planet can be exposed to very different molecules depending on their location on the disk. Planets form in the gas and dust disks, also known as protoplanetary disks, that surround young stars. The chemical composition of these disks can influ...
astrónomos, centro de la Vía Láctea, Espacio, Noticias, radio, señal de radio, Vía Láctea

Strange radio signal found in the center of the Milky Way | Digital Trends Spanish

An international team of researchers has detected a mysterious radio signal emitted from the center of the Milky Way. It is a signal transmitted with some regularity and so far it is unknown what type of space object could be causing it. The signal has been called ASKAP J173608.2-321635 and was detected several times between January and September last year. Then it disappeared for a while and came back at the beginning of this year. This finding will be published in The Astrophysical Journal, where a group of astronomers explains that it is "a highly polarized, highly variable and steep spectrum radio source." A new class of objects This signal was discovered using Australia's square kilometer array Pathfinder, which is a radio telescope array designed to analyze cosmic magnetism, expl...
agujero negro, astrónomos, Espacio, estrellas, fantasmas danzantes, Noticias

What are dancing ghosts discovered in space? | Digital Trends Spanish

Astronomers from the University of Western Sydney and the Australian Science Agency (CSIRO) have detected strange clouds of electrons surrounding galaxies in the deep cosmos. These clouds would be about a billion light-years away and had never been seen before. According to scientists, they would resemble two dancing ghosts. These dancing ghosts were discovered as part of the first deep-sky search using CSIRO's ASKAP (Australian Square Kilometer Array Pathfinder) radio telescope. “We are getting used to surprises as we scan the skies as part of Project EMU and probe deeper into the Universe than any telescope before it. When you go boldly where no telescope has gone before, you are likely to make new discoveries, "the researchers explain in a statement. Western Sydney University.“When...
asteroides, astrónomos, cinturón de Kuiper, Espacio, Noticias, objetos, objetos rojos, Sistema Solar

Two objects could explain how the solar system formed | Digital Trends Spanish

Scientists have discovered two unusually red objects in the asteroid belt between Jupiter and Mars. According to the researchers, these objects may have originated from farther afield in the solar system. They have been named 203 Pompeja and 269 Justitia and, according to scientists, they are redder than the reddest known objects in the asteroid belt and may have migrated to the area from beyond Neptune. In this way, the team in charge thinks that both could contribute information about the chaos of the early solar system and about how the solar system emerged as we know it today. The objects were discovered thanks to observations carried out at the Infrared Telescope Facility and at the Astronomical Observatory of Seoul National University. Getty Images.Astronomers think that if Pompej...
Agujeros negros, astrónomos, destellos de luz, Espacio, Noticias, objetos, rayos x, telescopios

First flashes of light detected behind a black hole | Digital Trends Spanish

While black holes are known to be notoriously dark objects, now a group of Stanford astronomers has detected a strange light emerging behind one. These X-ray echoes appear to be the result of the object's intense gravity warping space and deflecting light into view. In a new study, astronomers began to investigate the cause of these X-rays around a supermassive black hole located about 800 million light-years away. Thus, they observed something novel: smaller X-ray flashes occasionally followed the main ones, at different wavelengths. Dan Wilkins.According to the research, these afterglows were the same X-ray flares that were reflected off the back of the disk, which could be the first time astronomers have seen light from the far side of a black hole. "Any light that enters that black ...
análisis, astrónomos, calentamiento, caliente, Espacio, estructuras, galaxias, investigacion, misiones, Noticias, planetas, temperatura, universo

The universe keeps getting hotter | Digital Trends Spanish

Research by the Ohio State University Center for Cosmology and Astroparticle Physics examined the thermal history of the universe and concluded that it is getting hotter and hotter. The work was published in the magazine Astrophysical JournaLy determined that the temperature of gas throughout the universe has increased more than ten times during the last ten billion years, reaching approximately 2.2 million degrees Celsius. “As the universe evolves, gravity pulls dark matter and gas into space to form galaxies and galaxy clusters. The drag is violent, so violent that more and more gas is discharged and heated, ”explains Yi-Kuan Chiang, lead author of the study. The researchers used a new method that allowed them to estimate the temperature of the gas farther from Earth. This mean...
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...
astrónomos, cientificos, descubrimiento, Espacio, magnetar, Noticias, ondas de radio, pulsos de radio, telescopio, Vía Láctea

Mysterious radio signal traced inside our galaxy | Digital Trends Spanish

An international team of scientists managed to track down mysterious and intense bursts of radio energy that could come from inside the Milky Way. These Fast Radio Bursts (fast radio pulses or FRB), usually last only a fraction of a second, but can be a hundred million times more powerful than the Sun, according to the researchers. They used telescopes and technology from different countries, including Canada, the United States, and China to carry out their observations. They recently reported the detection of an FRB originating 30,000 light-years away in the northern Milky Way. This would be the first FRB detected within our own galaxy. According to astronomers, it would originate from a highly magnetized object, known as a magnetar (stars with a very powerful magnetic field). "W...