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Title:El mapa más detallado de la Vía Láctea revela terremotos estelares y el "ADN" de las estrellas
Title:El mapa más detallado de la Vía Láctea revela terremotos estelares y el "ADN" de las estrellas
source:Rtve noticias
article: https://www.rtve.es/noticias/20220613/gaia-mapa-mas-detallado-via-lactea-terremotos-estelares-astros-desconocidos/2383740.shtml
RTVE
RTVE
datos del catálogo Gaia incluye información
nueva y mejorada de casi 2.000 millones de estrellas de la Vía Láctea y
"descubrimientos sorprendentes". Los astrónomos han descrito extraños
terremotos estelares, "ADN"
estelar, movimientos asimétricos y otros elementos singulares en este estudio que es el más detallado de nuestra galaxia hasta la fecha.
SMARTCAT
SMARTCAT
The latest publication of Gaia catalog data it includes new and improved information on nearly 2 billion stars in the Milky Way and "amazing discoveries." Astronomers have described strange starquakes, stellar "DNA", asymmetric motions and other unique elements in this study which is the most detailed of our galaxy to date.
DEEPL
DEEPL
The latest release of data from the Gaia catalog includes new and improved information on nearly 2 billion stars in the Milky Way and "surprising discoveries". Astronomers have described stra nge stellar earthquakes, stellar "DNA," asymmetric motions, and other unique features in this most detailed study of our galaxy to date.
Uno de los descubrimientos más sorprendentes que surgen de los nuevos datos es que Gaia ha sido capaz de detectar terremotos de estrellas (pequeños movimientos en la superficie de una estrella) que modifican la forma de los astros, algo para lo que el observatorio no se construyó originalmente.
Anteriormente, Gaia ya encontró oscilaciones radiales que hacen que las estrellas se hinchen y se encojan periódicamente, manteniendo su forma esférica. Pero Gaia ahora también ha detectado otras vibraciones que se parecen más a los tsunamis a gran escala. Estas oscilaciones no radiales cambian la forma global de una estrella y, por lo tanto, son más difíciles de detectar.
One of the most surprising discoveries emerging from the new data is that Gaia has been able to detect earthquakes of stars (small movements on the surface of a star) that modify the shape of the stars, something for which the observatory was not originally built.
Previously, Gaia has already found radial oscillations that cause stars to swell and shrink periodically, maintaining their spherical shape. But Gaia has now also detected other vibrations that look more like large-scale tsunamis. These non-radial oscillations change the overall shape of a star and are therefore more difficult to detect.
One of the most surprising discoveries to emerge from the new data is that Gaia has been able to detect starquakes (small motions on the surface of a star) that modify the shape of the stars, something the observatory was not originally built to do.
Previously, Gaia already found radial oscillations that cause stars to periodically swell and shrink while maintaining their spherical shape. But Gaia has now also detected other vibrations that look more like large-scale tsunamis. These non-radial oscillations change the overall shape of a star and are therefore more difficult to detect.
Gaia ha encontrado fuertes terremotos estelares no radiales en miles de estrellas, y ha revelado estas vibraciones en astros en los que rara vez se habían visto antes, así como en estrellas que no deberían tener temblores según la teoría actual, aunque Gaia los ha detectado en su superficie.
“Los terremotos estelares nos enseñan mucho sobre las estrellas, especialmente sobre su funcionamiento interno. Gaia está abriendo una mina de oro para la 'asterosismología' de estrellas masivas”, ha asegurado Conny Aerts, investigador de la universidad KU Leuven en Bélgica, quien participa en Gaia.
Gaia has found strong non-radial stellar earthquakes in thousands of stars, and has revealed these vibrations in stars in which they had rarely been seen before, as well as in stars that should not have tremors according to current theory, although Gaia has detected them on its surface.
“Starquakes teach us a lot about stars, especially about their inner workings. Gaia is opening a gold mine for the 'asteroseismology' of massive stars”" he said Conny Aerts, researcher at the KU Leuven University in Belgium, who participates in Gaia.
Gaia has found strong non-radial stellar earthquakes in thousands of stars, and has revealed these vibrations in stars where they have rarely been seen before, as well as in stars that should not have tremors according to current theory, although Gaia has detected them on their surface.
"Stellar earthquakes teach us a lot about stars, especially about their inner workings. Gaia is opening up a gold mine for the 'asteroseismology' of massive stars," said Conny Aerts, a researcher at KU Leuven University in Belgium, who is involved in Gaia.
El "ADN" de las estrellas
El "ADN" de las estrellas
De qué están hechas las estrellas puede hablar sobre su lugar de nacimiento y su viaje posterior, y por lo tanto sobre la historia de la Vía Láctea. Con la nueva publicación de datos, Gaia revela el mapa químico más grande de la galaxia acoplado a movimientos 3D, desde nuestro Sistema Solar hasta las galaxias más pequeñas que rodean a la Vía Láctea.
Algunas estrellas contienen más metales pesados que otras. Durante el Big Bang solo se formaron elementos ligeros (hidrógeno y helio), pero todos los demás elementos más pesados, llamados metales por los astrónomos, se constituyen dentro de las estrellas. Cuando las estrellas mueren, liberan estos metales, a partir de lo que se forman nuevas estrellas. Por lo tanto, la composición química de una estrella es comparado por los astrónomos con el ADN, ya que brinda información crucial sobre su origen.
Con Gaia, los astrofísicos han podido comprobar que algunas estrellas de nuestra galaxia están hechas de material primordial, mientras que otras, como el Sol, están hechas de materia enriquecida por generaciones anteriores de estrellas. Las estrellas que están más cerca del centro y el plano de la Vía Láctea son más ricas en metales que las estrellas a distancias mayores. Gaia también ha identificado estrellas que originalmente provenían de galaxias diferentes a la nuestra, en función de su composición química.
The "DNA" of the stars
The "DNA" of the stars
What the stars are made of can tell about their place of birth and their subsequent journey, and therefore about the history of the Milky Way. With the new data release, Gaia reveals the largest chemical map of the galaxy coupled to 3D movements, from our Solar System to the smaller galaxies surrounding the Milky Way.
Some stars contain more heavy metals than others. During the Big Bang only light elements (hydrogen and helium) were formed, but all the other heavier elements, called metals by astronomers, are constituted inside the stars. When stars die, they release these metals, from which new stars are formed. Therefore, the chemical composition of a star is compared by astronomers with DNA, as it provides crucial information about its origin.
With Gaia, astrophysicists have been able to verify that some stars in our galaxy are made of primordial material, while others, such as the Sun, are made of matter enriched by previous generations of stars. Stars that are closer to the center and plane of the Milky Way are richer in metals than stars at greater distances. Gaia has also identified stars that originally came from galaxies other than our own, depending on its chemical composition.
The "DNA" of the stars
The "DNA" of the stars
What stars are made of can tell about their birthplace and subsequent journey, and thus about the history of the Milky Way. With the new data release, Gaia reveals the largest chemical map of the galaxy coupled to 3D motions, from our Solar System to the smallest galaxies surrounding the Milky Way.
Some stars contain more heavy metals than others. During the Big Bang only light elements (hydrogen and helium) were formed, but all other heavier elements, called metals by astronomers, are formed inside stars. When stars die, they release these metals, from which new stars are formed. Therefore, the chemical composition of a star is compared by astronomers to DNA, as it provides crucial information about its origin.
With Gaia, astrophysicists have been able to verify that some stars in our galaxy are made of primordial material, while others, like the Sun, are made of matter enriched by previous generations of stars. Stars that are closer to the center and plane of the Milky Way are richer in metals than stars at greater distances. Gaia has also identified stars that originally came from galaxies different from our own, based on their chemical composition.
Final version
Final version
The latest publication of Gaia catalog data it includes new and improved information on nearly 2 billion stars in the Milky Way and "amazing discoveries." Astronomers have described strange starquakes, stellar "DNA", asymmetric motions and other unique elements in this study which is the most detailed of our galaxy to date.
One of the most surprising discoveries emerging from the new data is that Gaia has been able to detect earthquakes of stars (small movements on the surface of a star) that modify the shape of the stars, something for which the observatory was not originally built.
Previously, Gaia has already found radial oscillations that cause stars to swell and shrink periodically, maintaining their spherical shape. But Gaia has now also detected other vibrations that look more like large-scale tsunamis. These non-radial oscillations change the overall shape of a star and are therefore more difficult to detect.
Gaia has found strong non-radial stellar earthquakes in thousands of stars, and has revealed these vibrations in stars in which they had rarely been seen before, as well as in stars that should not have tremors according to current theory, although Gaia has detected them on its surface.
“Starquakes teach us a lot about stars, especially about their inner workings. Gaia is opening a gold mine for the 'asteroseismology' of massive stars”" he said Conny Aerts, researcher at the KU Leuven University in Belgium, who participates in Gaia.
The "DNA" of the stars
What the stars are made of can tell about their place of birth and their subsequent journey, and therefore about the history of the Milky Way. With the new data release, Gaia reveals the largest chemical map of the galaxy coupled to 3D movements, from our Solar System to the smaller galaxies surrounding the Milky Way.
Some stars contain more heavy metals than others. During the Big Bang only light elements (hydrogen and helium) were formed, but all the other heavier elements, called metals by astronomers, are constituted inside the stars. When stars die, they release these metals, from which new stars are formed. Therefore, the chemical composition of a star is compared by astronomers with DNA, as it provides crucial information about its origin.
With Gaia, astrophysicists have been able to verify that some stars in our galaxy are made of primordial material, while others, such as the Sun, are made of matter enriched by previous generations of stars. Stars that are closer to the center and plane of the Milky Way are richer in metals than stars at greater distances. Gaia has also identified stars that originally came from galaxies other than our own, depending on its chemical composition.
comments
the use of smartcat continues to be superior in small points of the translation, such as sentences, keeping grammatical elements closer to the original.
comments
the use of smartcat continues to be superior in small points of the translation, such as sentences, keeping grammatical elements closer to the original.
Both programs used for general topics, could use the correct terms.
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