News tagged with galaxy formation

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Shedding light on galaxy rotation secrets

The dichotomy concerns the so-called angular momentum (per unit mass) that in physics is a measure of size and rotation velocity. Spiral galaxies are found to be strongly rotating, with an angular momentum higher by a factor ...

dateJul 14, 2017 in Astronomy
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Understanding star-forming galaxies

The more stars a typical spiral galaxy contains, the faster it makes new ones. Astronomers call this relatively tight correlation the "galaxy main sequence." The main sequence might be due simply to the fact that galaxies ...

dateJun 05, 2017 in Astronomy
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Discovered: Fast-growing galaxies from early universe

A team of astronomers including Carnegie's Eduardo Bañados and led by Roberto Decarli of the Max Planck Institute for Astronomy has discovered a new kind of galaxy which, although extremely old—formed less than a billion ...

dateMay 24, 2017 in Astronomy
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Shocked gas in galaxy collisions

Collisions between galaxies, especially ones rich in molecular gas, can trigger bursts of star formation that heat the dust and result in their shining brightly in the infrared. Astronomers think that there is also significant ...

dateMay 01, 2017 in Astronomy
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Hubble's bright shining lizard star

In space, being outshone is an occupational hazard. This NASA/ESA Hubble Space Telescope image captures a galaxy named NGC 7250. Despite being remarkable in its own right—it has bright bursts of star formation and recorded ...

dateApr 28, 2017 in Astronomy
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Hubble sees starbursts in Virgo

Although galaxy formation and evolution are still far from being fully understood, the conditions we see within certain galaxies—such as so-called starburst galaxies—can tell us a lot about how they have evolved over ...

dateApr 14, 2017 in Astronomy
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