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Turbulent black hole gas prevents star formation

Turbulent black hole gas prevents star formation

Brett Smith for redOrbit.com - Your Universe Online Astrophysicists have suspected that desolate “red and dead” galaxies are only formed by powerful supermassive black holes at the center of these galaxies stripping away all of the...

Latest Star formation Stories

The_magnetic_field_along_the_Galactic_plane
2014-12-15 09:04:55

While the pastel tones and fine texture of this image may bring to mind brush strokes on an artist’s canvas, they are in fact a visualization of data from ESA’s Planck satellite.

multiple star system
2014-11-07 03:00:28

The NASA/ESA Hubble Space Telescope has snapped a striking view of a multiple star system called XZ Tauri, its neighbor HL Tauri, and several nearby young stellar objects.

APEX Reveals Hidden Star Formation In The Spiderweb Galaxy
2014-10-15 03:01:28

Galaxy clusters are the largest objects in the Universe held together by gravity but their formation is not well understood.

Artist’s impression of eclipsing binary
2014-09-25 03:00:54

New modeling studies from Carnegie’s Alan Boss demonstrate that most of the stars we see were formed when unstable clusters of newly formed protostars broke up.

T Tauri star
2014-09-24 06:40:29

Using the European Southern Observatory's Atacama Large Millimeter/submillimeter Array, astronomers have observed what seems to be windy weather surrounding a T Tauri star—considered to be an infant analog of our own Sun.

Lupus 4
2014-09-04 06:52:11

Lupus 4, a spider-shaped blob of gas and dust, blots out background stars like a dark cloud on a moonless night in this intriguing new image. Although gloomy for now, dense pockets of material within clouds such as Lupus 4 are where new stars form and where they will later burst into radiant life.

molecular cloud thinkstock 89614446
2014-09-01 04:34:43

A team of astrophysicists and computational astronomers have discovered why sibling stars look alike – those formed from a single cloud share the same chemical fingerprint due to early, fast and turbulent mixing of gas in the giant molecular clouds where star formation occurs.

Orion Molecular Cloud Complex
2014-08-28 07:00:10

Current theories suggest that rocky planets like Earth start their lives as microscopic bits of dust tinier than a grain of sand. However, astronomers have recently discovered that filaments of star-forming gas near the Orion Nebula might be full of pebble-sized particles.

dramatic star formation regions
2014-08-20 06:03:47

The Wide Field Imager at the ESO’s La Silla Observatory in Chile has captured new images of two dramatic regions of star formation in the southern Milky Way, one of which features a Wolf–Rayet multiple star system.

Research Finds Numerous Unknown Jets From Planetary Nebulae And Young Stars
2014-08-01 03:48:51

For many years astronomers have known that young 'protostars' drive supersonic jets of gas from their north and south poles. However, this is the first time that so many of them have been detected at once.


Latest Star formation Reference Libraries

6_a1ae8ebf66110513af3385295f837b592
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...

6_eb1c58e78fe764237148429a189b17e92
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...

6_53083d96ff77dbf99c47ef10b6a209332
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...

6_1e0e5cf9a2c3ce795f6505f978f2a7d42
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...

3_2ba8343f20ea4b49d1ac4cbb2680b3fa2
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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Word of the Day
saggar
  • A ceramic container used inside a fuel-fired kiln to protect pots from the flame.
The word 'saggar' may come from 'safeguard'.
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