Latest Star formation Stories

Cosmic Turbulence Black Hole Formation
2013-08-16 09:31:01

John P. Millis, PhD for redOrbit.com - Your Universe Online The mechanism by which stars and black holes are formed in extreme cases of high mass density has puzzled astronomers since Johannes Kepler first laid out his laws of planetary motion some 400 years ago. In the most basic sense, a large cloud of gas condenses into a rotating disk. Mass is then directed towards the center of the cloud where, due to the increasing density, a stellar body is eventually formed. One challenge to...

Aircraft Telescope Images Ring Of Dust Surrounding Black Hole
2013-07-10 13:34:10

Lee Rannals for redOrbit.com - Your Universe Online Astronomers using a telescope attached to a modified Boeing 747SP aircraft have captured new images of a ring of gas and dust seven light-years in diameter surrounding the super-massive black hole at the center of the Milky Way. The team used NASA's Stratospheric Observatory for Infrared Astronomy (SOFIA) to capture images of our galaxy's circumnuclear ring (CNR), as well as a neighboring cluster of extremely luminous young stars known...

NASA SOFIA Images Massive Star Cluster
2013-07-10 12:37:44

Lee Rannals for redOrbit.com - Your Universe Online NASA astronomers have taken new images of a recently born star cluster sitting in the W3 region about 6,400 light years away from Earth. The new star cluster, named W3A, is seen in the images floating in the depths of the large gas and dust cloud from which it formed. A close-up image taken by NASA's Stratospheric Observatory for Infrared Astronomy (SOFIA) shows the violent interaction zone around the massive star cluster. The...

ALMA Scan Reveals Embryonic Star Formation
2013-07-10 05:07:12

[ Watch the Video: Zooming in on the Birth of a Monster Star ] Lee Rannals for redOrbit.com - Your Universe Online Astronomers used ESO's Atacama Large Millimeter/submillimeter array (ALMA) to gain one of the best views yet of a star in the process of forming. The embryonic monster star sits inside Spitzer Dark Cloud (SDC) 335.579-0.292 right now, which contains over 500 times the mass of the Sun. Astronomers say the cloud will be giving birth to a very brilliant star with up to...

Galactic Raw Material Plays Crucial Role In Star Formation
2013-06-25 08:28:48

Lawrence LeBlond for redOrbit.com - Your Universe Online New observation using an Australian telescope has offered up evidence of the raw material that played a part in forming some of the first stars in galaxies when the Universe was just three billion years old. The observations were made using CSIRO’s Australia Telescope Compact Array (ATCA) near Narrabri, New South Wales. “[This is] one of very few telescopes in the world that can do such difficult work, because it is both...

More Galactic Gas In Milky Way Than We Thought
2013-06-11 14:31:02

Brett Smith for redOrbit.com - Your Universe Online The building blocks of stars, clouds of molecular gases, are strewn across the Milky Way, and a new survey from the European Space Agency (ESA) and NASA has found that scientists have been underestimating the amount of gas in the galaxy by about one-third. According to a new report in journal Astronomy and Astrophysics, the discovery was made possible by the orbiting Hershel Space Observatory, a joint venture between the two space...

Very Large Telescope Celebrates 15 Years
2013-05-23 05:39:29

[ Video 1 ] | [ Video 2 ] Lee Rannals for redOrbit.com - Your Universe Online The European Southern Observatory (ESO) is celebrating 15 years of success for its Very Large Telescope (VLT). ESO released an image taken by astronomers using VLT of a pink gas cloud known as IC 2944. The image resembles drops of ink floating in a strawberry cocktail, showing one of the interstellar clouds of dust and gas softly glowing pink. VLT's image is the sharpest view of the cosmic object ever...

Orion Reveals A Hidden Fiery Ribbon
2013-05-15 05:10:13

[ Video 1 ] | [ Video 2 ] Lee Rannals for redOrbit.com - Your Universe Online The European Southern Observatory (ESO) has released a new image of the constellation of Orion showing part of the Orion Molecular Cloud. The image shows off clouds of gas and interstellar dust at wavelengths too long for the human eye to see. These tiny dust grains block the view of what lies within and behind the clouds, making it difficult to observe star formation taking place in this region. In...

Pinpointing Radio Wave Origins In The Distant Universe
2013-05-01 05:04:41

April Flowers for redOrbit.com - Your Universe Online For the first time, astronomers have identified discrete sources that account for nearly all of the radio waves coming from distant galaxies. This was achieved by more than 50 hours of observations with the ultra-sensitive Karl G. Jansky Very Large Array (VLA). The researchers found that approximately 63 percent of the background radio emission comes from galaxies with gorging black holes at their cores. The remaining 37 percent...

Galaxy Forms New Stars With Extreme Efficiency
2013-04-23 18:18:31

Brett Smith for redOrbit.com — Your Universe Online Efficiency experts and green technology proponents can now look to the heavens for inspiration, as astronomers have identified a galaxy that forms stars at almost 100 percent efficiency. According to a new report in Astrophysical Journal Letters, telltale signs from NASA's Wide-field Infrared Survey Explorer (WISE), the Hubble Space Telescope and the Plateau de Bure interferometer at the Institut de Radioastronomie...

Latest Star formation Reference Libraries

2004-10-19 04:45:42

T Tauri -- T Tauri stars are a class of stars thought to represent extremely young pre-main sequence stars, in an early stage of life. They are seen near many molecular clouds in our galaxy. The first ones were found in 1945, identified by their optical variability and strong chromospheric lines. T Tauri stars have masses and temperatures similar to the Sun, but are significantly brighter. They have fast rotation rates, typically with a period of a few days, compared to a month for...

2004-10-19 04:45:42

Star Formation -- Star formation is the process by which gas in molecular clouds gets transformed into stars. In the current paradigm of star formation, cores of molecular clouds (regions of specially high density) became gravitationally unstable, and start to concentrate. Part of the gravitational energy lost in the process is radiated in the infrared, another part increases the temperature of the core. The accretion of material happen partially though a circumstellar disc. When...

2004-10-19 04:45:41

Molecular Cloud -- Molecular clouds are interstellar nebulae that have a density and size sufficient to permit the formation of H2, molecular hydrogen. However, this molecule is difficult to detect, and the molecule most used to trace the H2 is CO (carbon monoxide). The ratio between CO luminosity and H2 mass is roughly constant, although there are reasons to doubt this assumption in observations of some other galaxies. In the Milky Way, molecular clouds account for roughly one-half...

2004-10-19 04:45:41

H II Region -- An H II region is an emission nebula associated with hot, young, blue stars, and star forming regions. H II, or singly-ionized hydrogen, is nebular gas ionized by ultraviolet light emitted by these hot, young stars of spectral type O and B. The sizes of H II regions are determined both by the amount of gas present, and by the luminosity of the O and B stars -- the more luminous the stars are, the larger the H II region can be. H II regions are found within the spiral...

2004-10-19 04:45:40

Horsehead Nebula -- The Horsehead Nebula, a part of the optical nebula IC434 and also known as Barnard 33, was first recorded in 1888 on a photographic plate taken at the Harvard College Observatory. Its coincidental appearance as the profile of a horse's head and neck has led to its becoming one of the most familiar astronomical objects. It is, in fact, an extremely dense cloud projecting in front of the ionized gas that provides the pink glow so nicely revealed in this picture. We...

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  • The prevailing range of a vocal or instrumental part, within which most of the tones lie.
This word is Italian in origin and comes from the Latin 'textura,' web, structure.