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UrduTheoretical predictions have been confirmed with the discovery of an outflow of molecular gas from a quasar when the Universe was less than a billion years old.
Tag: Alma
NSF Telescopes Image M87’s Supermassive Black Hole and Massive Jet Together for the First Time
Scientists studying the supermassive black hole at the heart of the M87 galaxy have revealed the origins of the monster’s powerful jet and imaged the jet and its source together for the first time. What’s more, the observations have revealed that the black hole’s ring is much larger than scientists previously believed.
Telescopios de la NSF obtienen imagen de agujero negro supermasivo de M87 y su chorro juntos por primera vez
Un equipo científico que estudió el agujero negro supermasivo presente en el corazón de la galaxia M87 reveló los orígenes de su poderoso chorro y logró obtener las primeras imágenes del chorro y su fuente juntos. Las observaciones también revelaron que el anillo del agujero negro es mucho más grande de lo que la comunidad científica creía.
A Decade of Unveiling the Hidden Universe: ALMA at 10
n March 13th, 2023, astronomers around the world will mark the 10th anniversary of the inauguration of the Atacama Large Millimeter/submillimeter Array (ALMA), the world’s largest radio telescope. Over the past decade, the international ALMA collaboration— led by the U.S. National Science Foundation’s National Radio Astronomy Observatory (NRAO), the European Southern Observatory (ESO), and the National Astronomical Observatory of Japan (NAOJ)— has revolutionized our understanding of the Universe and unveiled its secrets, from the formation of planets, stars, and galaxies to deciphering the chemistry of the cosmos, and even taking part in capturing the first images of black holes.
ALMA revela que orígenes de agua en planeta en formación se remontarían a medio interestelar
Un equipo científico detectó agua en el disco circumestelar de una protoestrella cercana gracias al Atacama Large Millimeter/submillimeter Array (ALMA). Es la primera vez que se observa agua depositándose en un disco protoplanetario sin que se produzcan cambios significativos en su composición. Este hallazgo permite suponer que el agua presente en nuestro Sistema Solar se formó miles de millones de años antes que el Sol.
Protected: Science Results From NRAO Facilities to Be Presented at Multiple AAS 241 Press Conferences
Five new scientific results from the Atacama Large Millimeter/submillimeter Array (ALMA), the Very Large Array (VLA), and the Green Bank Observatory (GBO) will be revealed at multiple press conferences during the 241st meeting of the American Astronomical Society (AAS) from January 8 to 12, 2023, in Seattle, Wash.
ALMA Witnesses Deadly Star-Slinging Tug-of-War Between Merging Galaxies
While observing a newly-dormant galaxy using the Atacama Large Millimeter/submillimeter Array (ALMA) and the Hubble Space Telescope (HST), scientists discovered that it had stopped forming stars not because it had used up all of its gas but because most of its star-forming fuel had been thrown out of the system as it merged with another galaxy. The result is a first for ALMA scientists. What’s more, if proven common, the results could change the way scientists think about galaxy mergers and deaths.
ALMA Makes First-Ever Detection of Gas in a Circumplanetary Disk
Scientists using the Atacama Large Millimeter/submillimeter Array (ALMA)— in which the National Radio Astronomy Observatory (NRAO) is a partner— to study planet formation have made the first-ever detection of gas in a circumplanetary disk. What’s more, the detection also suggests the presence of a very young exoplanet.
ALMA obtiene vista privilegiada de duelo entre fuerzas opuestas en incubadora de Gran Nube de Magallanes
Tras usar el Atacama Large Millimeter/submillimeter Array (ALMA) para observar regiones donde se forman estrellas en la Gran Nube de Magallanes, un equipo de investigación descubrió la existencia de un turbulento fenómeno de tira y afloja en la incubadora 30 Doradus. Las observaciones revelaron que, a pesar de una intensa retroalimentación estelar, la gravedad está incidiendo en la forma de la nube molecular y, contra todo pronóstico, fomentando la formación de estrellas jóvenes y masivas. Los resultados de las observaciones se presentaron hoy en una conferencia de prensa durante la asamblea n.o 240 de la Sociedad Astronómica Estadounidense (AAS, en su sigla en inglés), celebrada en Pasadena (California, EE. UU.), y se publicarán la revista The Astrophysical Journal (ApJ).
Undergraduate Researcher Captures Young Galaxy’s “Coming of Age” and Finds Evidence That Early Galaxies May Be Bigger and More Complex Than We Thought
Scientists using the Atacama Large Millimeter/submillimeter Array (ALMA)— an international observatory co-operated by the US National Science Foundation’s National Radio Astronomy Observatory (NRAO)—have observed a significant amount of cold, neutral gas in the outer regions of the young galaxy A1689-zD1, as well as outflows of hot gas coming from the galaxy’s center. These results may shed light on a critical stage of galactic evolution for early galaxies, where young galaxies begin the transformation to be increasingly like their later, more structured cousins. The observations were presented today in a press conference at the 240th meeting of the American Astronomical Society (AAS) in Pasadena, California, and will be published in an upcoming edition of The Astrophysical Journal (ApJ).
Scientists on the Hunt for Planetary Formation Fossils Reveal Unexpected Eccentricities in Nearby Debris Disk
Using the Atacama Large Millimeter/submillimeter Array (ALMA), astronomers have imaged the debris disk of the nearby star HD 53143 at millimeter wavelengths for the first time, and it looks nothing like they expected. Based on early coronagraphic data, scientists expected ALMA to confirm the debris disk as a face-on ring peppered with clumps of dust. Instead, the observations took a surprise turn, revealing the most complicated and eccentric debris disk observed to date.
Equipo científico en busca de fósiles de formación planetaria revela inesperadas excentricidades en disco de escombros cercano
Gracias al Atacama Large Millimeter/submillimeter Array (ALMA), un equipo de astrónomos y astrónomas obtuvo la primera imagen de un disco de escombros de la estrella cercana HD 53143 en longitudes de onda milimétricas, y el resultado dista mucho del que se esperaba. Sobre la base de datos coronagráficos, la comunidad científica esperaba que ALMA confirmara que el disco tenía el aspecto de un anillo visto de frente y con aglomeraciones de polvo. En cambio, el estudio reveló el disco más complejo y excéntrico observado a la fecha.
Científicos descubren escurridizo gas de galaxias post brote estelar que se escondía a plena vista
Se creía que las galaxias post brotes de formación estelar agotan a gran velocidad y en violentas erupciones de energía todo el polvo y gas necesario para fabricar estrellas. Los nuevos datos obtenidos por el Atacama Large Millimeter/submillimeter Array (ALMA) revelaron que, en realidad, estas galaxias no se despojan de todo su combustible, sino que entran en un letargo en el que conservan y comprimen grandes cantidades de gas ultraconcentrado y turbulento. No obstante, al contrario de lo que se esperaría, tampoco lo usan para dar nacimiento a nuevas estrellas.
ALMA Scientists Detect Signs of Water in a Galaxy Far, Far Away
Scientists studying SPT0311-58 found H20, along with carbon monoxide in the galaxy, which is located nearly 12.88 billion light years from Earth. Detection of these two molecules in abundance suggests that the molecular Universe was going strong shortly after the elements were forged in early stars.
A Cosmic Whodunit: ALMA Study Confirms What’s Robbing Galaxies of Their Star-Forming Gas
Astronomers examining the nearby Universe with the help of the Atacama Large Millimeter/submillimeter Array (ALMA) have just completed the largest high-resolution survey of star-forming fuel ever conducted in galaxy clusters. But more importantly, they’re tackling a long-standing mystery in astrophysics: what’s killing galaxies? The research, which provides the clearest evidence to date that extreme environments in space have severe impacts on the galaxies within them, will be published in an upcoming edition of The Astrophysical Journal Supplement Series.
Hubble Finds Early, Massive Galaxies Running on Empty
Fast and furious—that’s how six massive galaxies in the early universe lived before they literally ran out of gas, shut down star formation, and died. These images are composites from Hubble and ALMA.
Planets Form in Organic Soups with Different Ingredients
A series of new images reveals that planets form in organic soups — and no two soups are alike.
New Receivers Achieve First Light, Set Record for Observational Capabilities at ALMA
A new set of receivers installed on antennas at the Atacama Large Millimeter/submillimeter Array (ALMA) have achieved first light. With it, they set a new record for the longest wavelengths visible with the radio array.
Scientists Observe Gas Re-accretion in Dying Galaxies for the First Time
A new study from scientists using the Atacama Large Millimeter/submillimeter Array (ALMA) suggests that previously displaced gases can re-accrete onto galaxies, potentially slowing down the process of galaxy death caused by ram pressure stripping, and creating unique structures more resistant to its effects.
Científicos observan por primera vez reacreción de gas en galaxias moribundas
Un nuevo estudio realizado con datos del Atacama Large Millimeter/submillimeter Array (ALMA) postula que nubes de gas previamente desplazadas pueden volver a acumularse y formar nuevas galaxias mediante acreción, ralentizando de esa forma el proceso de despojo por presión que causa la extinción de las galaxias y creando estructuras únicas más resistentes a dicho fenómeno.
No olviden el surco: científicos usan masa estelar para establecer vínculo entre exoplanetas y discos protoplanetarios
A partir de los datos de más de 500 estrellas jóvenes observadas con el Atacama Large Millimeter/Submillimeter Array (ALMA), los científicos descubrieron un vínculo directo entre las estructuras de los discos protoplanetarios (los discos que rodean a las estrellas y donde se forman planetas nuevos) y las características demográficas de los planetas que allí nacen.
Mind the Gap: Scientists Use Stellar Mass to Link Exoplanets to Planet-Forming Disks
Data from 500 young stars observed with the Atacama Large Millimeter/submilliter Array (ALMA) is giving scientists a window back through time, allowing them to predict what exoplanetary systems looked like through each stage of their formation. And it all starts with a link between higher mass stars, disks with gaps in them, and a high occurrence of observed exoplanets.
Study of Young Chaotic Star System Reveals Planet Formation Secrets
A team of scientists using the Atacama Large Millimeter/submillimeter Array (ALMA) to study the young star Elias 2-27 have confirmed that gravitational instabilities play a key role in planet formation, and have for the first time directly measured the mass of protoplanetary disks using gas velocity data, potentially unlocking one of the mysteries of planet formation.
Cosmic cartographers map the nearby Universe revealing the diversity of star-forming galaxies
A team of astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) has completed the first census of molecular clouds in the nearby Universe. The study produced the first images of nearby galaxies with the same sharpness and quality as optical imaging and revealed that stellar nurseries do not all look and act the same. In fact, they’re as diverse as the people, homes, neighborhoods, and regions that make up our own world.
Record-breaking stellar flare from nearby star recorded in multiple wavelengths for the first time
Scientists using the Atacama Large Millimeter/submillimeter Array (ALMA) observed a record-breaking stellar flare from Proxima Centauri. The study also marks the first time that a powerful stellar flare, other than those from the Sun, has been observed with such complete wavelength coverage.
Discovery points to origin of mysterious ultraviolet radiation
Lyman-alpha blobs (LABs) are gigantic clouds of hydrogen gas that produce ultraviolet light known as Lyman-alpha emissions. A study of Lyman-alpha blob 6 (LAB-6) is the first LAB with infalling gas feature. The findings suggest that star-forming galaxies are likely the primary energy source of Lyman-alpha radiation emitted from LAB-6.