Articles tagged with Interstellar Clouds
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The G0.253+0.016 cloud defies conventional wisdom on star formation, with a dense gas content 25 times higher than the Orion Nebula but only producing small stars. The cloud's high velocities and presence of silicon monoxide suggest it may be two colliding clouds, preventing star formation due to its dynamic nature.
Farhad Zadeh has discovered a new tool for detecting dusty clouds and stars using radio waves, allowing astronomers to image exotic features in the galaxy's center. The technique reveals dark features that indicate interactions between cold gas clouds and hot radiation fields.
Astronomers have identified a new type of black-hole-driven outflow that explains the link between galaxy mass and star velocity. Ultra-fast outflows are common features of black-hole-powered galaxies, influencing galactic shape and star formation.
The study provides a glimpse into the mysterious neighborhood beyond our home, revealing an environment that doesn't match up with what we see in the solar system. IBEX's observations shed light on the formation of our solar system, the forces that shape it, and even the history of other stars in the Milky Way.
The IBEX team has analyzed samples of captured interstellar neutral atoms, providing insights into the formation of new stars, planets, and human beings. The findings also reveal that the solar system is still in a local interstellar cloud and will transition to a different region within a few thousand years.
The Cygnus X region is home to thousands of massive stars and many more stars around the size of our sun or smaller. Infrared data from NASA's Spitzer Space Telescope reveals a complex of star-forming clouds, with bubbles carved out by radiation and winds from massive stars.
Researchers mapped over 100 molecular clouds in the LMC and found many low-mass clouds, contradicting conventional wisdom. The team hopes to learn more about the metamorphosis of gas clouds into stars.
The Galaxy platform is now available as a cloud computing resource, providing researchers with access to powerful computing power and vast data storage capacity. This development enables scientists to perform large-scale DNA analyses without investing in expensive computer infrastructure.
The galaxy Centaurus A is home to a firestorm of new star formation triggered by shockwaves from a past collision and merger with another galaxy. Hubble's image reveals the birth of vibrant blue star clusters and compresses hydrogen gas clouds.
Shear Alfvén waves are important in plasma stability and heating, while also contributing to aurora formation and solar corona acceleration
A new computer simulation by Gurtina Besla and her colleagues shows that the Magellanic Stream resulted from a past close encounter between the Large and Small Magellanic Clouds, rather than the Milky Way's gravity. The study challenges traditional models of galaxy formation.
Researchers have discovered a connection between giant gas clouds and the formation of active galactic nuclei, which power the bright centers of some galaxies. The study suggests that gas clouds can either be consumed by supermassive black holes or give birth to new stars, leading to increased activity.
Astronomers have detected a wave of massive star formation within the M17 SWex dark cloud, revealing 488 newly forming stars, including 200 blue-white class B stars. The discovery sheds light on how and when massive stars form, with theories suggesting an expanding shock wave or later formation may be necessary.
A team of researchers has made the first detailed observations of 'halo' gas clouds in our Galaxy, finding they contain hydrogen gas 700 times the mass of the Sun. These clouds are linked to earlier star formation and can fall back into the main body of the Galaxy, recycling material.
Hydrogen gas clouds found near Galactic bar exhibit distinct properties, indicating they originated from supernova explosions and young star winds. This discovery sheds light on critical process of material movement between Galaxy's disk and halo.
Researchers have made direct measurements of the size and brightness of regions of star-birth in a very distant galaxy using the APEX telescope. The galaxy is so bright due to massive dust grains heated by starlight, revealing star formation at a rate equivalent to about 250 Suns per year.
Researchers have solved a 20-year-old astrophysical puzzle using gas dynamical simulations. Filamentary structures formed during the collapse of infalling gas absorb massive stars' radiation, shielding surrounding nebulae from heating.
The IBEX mission reveals a 'noodle soup' of solar material at the outer fringes of the heliosphere bubble, with an arc-shaped ribbon of high-pressure material. The discovery challenges model predictions and provides key information about the properties of the interstellar cloud.
Researchers from the University of Georgia have identified a gaseous version of naphthalene, a component of mothballs, in deep-space clouds emitting unusual infrared light. The discovery provides insights into the composition of interstellar dust and its association with stellar lifecycles.
A team led by John Debes at NASA's Goddard Space Flight Center finds that a star's motion through interstellar gas can account for warped debris disks around stars. The fine dust particles are affected by the drag force from the gas, causing them to change their trajectory and creating unusual shapes.
Astronomers have discovered star birth within a cloud of primordial gas, known as the Leo Ring, which lacks dark matter and heavy elements. This finding suggests that new galaxies may have formed through a distinct process, potentially providing insight into the early Universe.
Astronomers have identified a new type of dwarf galaxy, formed out of pristine gas without dark matter. Led by Johns Hopkins University, the discovery was made using the Galaxy Evolution Explorer and suggests that these galaxies may be common throughout the early universe.
Two distinct gas and dust clouds formed by different types of supernova explosions are detected in DEM L316 nebula, with one shell containing more iron suggesting a Type Ia supernova. The two shells appear to be aligned by chance in the sky due to their vastly different ages.
Researchers at University of Bonn use computer simulations to understand how star clusters are formed from interstellar gas clouds and evolve over time. The study finds that small clusters are easily destroyed by radiation from stars, while heavy clusters survive longer.
University of Missouri-Columbia researcher Rainer Glaser presents a novel origin-of-life theory suggesting that essential molecule adenine originated from interstellar dust clouds. The presence of highly concentrated hydrogen cyanide (HCN) in these clouds could indicate the existence of adenine, which is crucial for life on Earth.
Astronomers analyze galaxy clusters and discover that dark matter, a mysterious invisible force, has an incredibly long lifetime. The research suggests that axions, a type of particle with extra dimensions, could be the culprit behind this prolonged existence.
Astronomers have discovered a powerful outburst from the giant black hole at the Milky Way's center using NASA's Chandra X-ray Observatory. The light echo revealed by the X-ray echo was about 1,000 times brighter and lasted well over 1,000 times longer than recent outbursts.
The AKARI satellite's far-infrared survey has provided unprecedented views of the Large Magellanic Cloud, a dwarf galaxy orbiting our own. The images reveal copious star formation activity across the galaxy, with many stars currently being formed, indicating a 'star burst'.
A team of astronomers produced the clearest map to-date of star-forming clouds in the Milky Way, enabling deeper insights into the origin of stars. The new illustration reveals similar lumpy structures in molecular clouds, suggesting that all clouds form stars in roughly the same proportion.
The H.E.S.S. collaboration has discovered gamma-ray emission from a complex of gas clouds near the Milky Way Galaxy's centre, revealing a prehistoric particle accelerator. The density of cosmic rays exceeds that in the solar neighbourhood, suggesting recent acceleration.
Astronomers have long hoped to find magnetic forces shaping interstellar clouds, and now they've done so. A helical magnetic field was detected around the Orion Molecular Cloud, providing the first evidence of its structure.
Researchers searched for dwarf galaxies in nearby galaxy cloud using Two Micron All Sky Survey and Very Large Telescope. However, no stars were detected, suggesting alternative explanations for the missing galaxies.
Astronomers using Spitzer Space Telescope image a new generation of stars at the heads of huge dust pillars created by galactic weather conditions. The Carina Nebula, located 10,000 light years from Earth, is visible to the human eye and contains several dozen massive stars that shape the gigantic dust pillars.
The Wide Field Camera (WFCAM) is the world's most powerful infrared survey camera, detecting objects one hundred times fainter than existing surveys. It has captured stunning images of the Orion nebula, revealing thousands of young stars and dramatic clouds of gas and dust.
Researchers at Ohio State University have discovered a formaldehyde-based chemical in interstellar dust clouds, suggesting that organic molecules may play a more prominent role in star and planet formation. The findings could change ideas about how these molecules form in the universe.
Researchers discovered two new aldehyde molecules, propanal and propenal, in an interstellar cloud near the Milky Way Galaxy. These findings provide insights into the formation chemistry of complex molecules in space.
The detection of molecular nitrogen in interstellar clouds promises to enhance our knowledge of interstellar chemistry and the formation of planets. FUSE, a satellite-telescope designed at Johns Hopkins, allowed astronomers to probe dense clouds where N2 is expected to be dominant.
A team of European astronomers discovered a massive star surrounded by a huge accretion disc, pushing the understanding of high-mass star formation. The large disc, resembling a flared disc seen nearly edge-on, is associated with an hour-glass shaped reflection nebula and reveals details about star formation processes.
Astronomers have discovered four massive stellar clusters with stars as massive as 120 solar masses in the Milky Way's W49 molecular cloud. This reveals the true sources of enormous energy powering a giant HII region, solving decades of speculation.
Scientists estimate a significant increase in low-energy cosmic ray flux, leading to enhanced heating and ionization in diffuse interstellar gas clouds. This finding implies the production of more complex molecules than previously thought, with potential implications for the origin of life.
A team of Colorado researchers has discovered a large population of 'proplyd' objects in the Carina Nebula, located 7,300 light-years from Earth. The newly found proplyds are roughly 100 times the diameter of our solar system and are puzzling for several reasons.
A team of UCSD researchers found that regular outbursts of ultraviolet radiation from massive stars may play a significant role in stirring up galaxies. The simulation study suggests that this radiation acts as an important regulation mechanism, inhibiting further star formation and regulating the galactic perturbations.
Researchers propose a new mechanism to explain the X-ray galactic ridge's origin, involving low-energy cosmic rays interacting with neutral molecular clouds. The study suggests that this process can produce the observed X-ray emission without requiring dramatic events or unusual astrophysical processes.
A team of scientists led by Leisa Townsley has found evidence of X-ray-emitting gas in the Rosette Nebula, a star-forming region. This gas is thought to be created by the collision of stellar winds from massive stars and may play a significant role in shaping the galaxy's interstellar medium.
Researchers using NASA's Submillimeter Wave Astronomy Satellite (SWAS) have discovered that water vapor is 10,000 times less abundant than previously thought in interstellar clouds. The satellite's findings also indicate that molecular oxygen is at least 100 times less abundant than predicted, contradicting prevailing wisdom.
The Hubble-X image reveals a nearly circular bright cloud at the core of a star-forming region in NGC 6822. The cloud contains thousands of newly formed stars and is many times brighter and larger than the Orion Nebula in our Milky Way galaxy.
Astronomers have observed five young, massive star clusters in a distant galaxy, offering a glimpse into the earliest stages of stellar nursery development. The discoveries, estimated to be around 500,000 years old, provide valuable insights into how globular clusters form and evolve over billions of years.
A new NASA satellite has provided unprecedented sensitivity to detect molecular hydrogen, the primary ingredient for star and planet formation. This discovery suggests that star formation proceeds similarly across various space environments, including nearby galaxies.
Researchers have discovered a mechanism by which the galaxy is seeded with gas to form new stars, solving a long-standing question of galactic evolution. The discovery confirms that high-velocity clouds play a key role in the chemical evolution of the galaxy by showering it with metal-poor gas.
Researchers at Ohio State University have found signs of a compact, supermassive object at the center of galaxy NGC 5548, suggesting the presence of a black hole. The study used data from the International Ultraviolet Explorer satellite and ground-based telescopes to analyze changes in light from the galaxy's active galactic nucleus.
A team of U.S. astronomers has discovered a massive concentration of water vapor within a cloud of interstellar gas close to the Orion nebula, measuring 20 times larger than observed in other clouds. The high amount of water vapor could provide crucial clues about the origin of water in the solar system.
Researchers at Weizmann Institute demonstrate that water is formed in interstellar clouds through a reaction involving hydronium. The experiment, conducted at an ion storage ring, shows a permanent ratio between water and hydronium molecules.