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Search results for “Galaxy Formation”

1,000+ results for "Galaxy Formation"

The limits to galactic growth

Astronomers have observed the Sculptor Galaxy (NGC 253) producing an outflow of molecular gas, curtailing its ability to form new stars. The galaxy's starburst region is shedding massive amounts of gas, with a total mass estimated to be nine times that of our Sun each year.

SourceMax-Planck-Gesellschaft·JournalNature·DateJul 25, 2013

Starburst to star bust

Researchers using ALMA discovered that Sculptor Galaxy is expelling massive concentrations of cold gas through galactic winds, depriving the galaxy of fuel for new stars. This phenomenon may explain why few high-mass galaxies are observed in the cosmos, as starburst-driven winds recycle rather than remove star-forming material.

SourceESO·JournalNature·DateJul 24, 2013

Feeding galaxy caught in distant searchlight

Astronomers have observed a galaxy feeding on material from its surroundings, shedding light on galaxy formation. The study used ESO's VLT to analyze the properties of gas around the galaxy, providing unique insights into the growth of galaxies.

SourceESO·JournalScience·DateJul 4, 2013

New knowledge about early galaxies

A team of researchers studied an early galaxy using the ESO Very Large Telescope and Hubble Space Telescope, determining its size, mass, element content, and star formation rate. The study found that the galaxy contained a high proportion of heavier elements, similar to those in the centre and outer parts of the galaxy.

SourceUniversity of Copenhagen - Niels Bohr Institute·JournalMonthly Notices of the Royal Astronomical Society·DateJul 3, 2013

Rare galaxy found furiously burning fuel for stars

Astronomers discovered a rare galaxy that turns gas into stars with near 100% efficiency, outperforming even the most efficient engines. This highly tuned galaxy forms stars at a rate hundreds of times faster than our Milky Way, with the majority of its starlight emitted by a small region.

SourceMcGill University·JournalThe Astrophysical Journal Letters·DateApr 23, 2013

Planets abound

A Caltech-led team estimated that there are at least 100 billion planets in the galaxy, with one planet per star, based on their analysis of the Kepler-32 system. The planets in this system are typical of those found around M-dwarf stars and may represent the majority of planets in the galaxy.

Our galaxy's 'geysers' are towers of power

Astronomers have detected giant outflows of charged particles from the center of our galaxy, stretching across half the sky and emitting an enormous amount of energy. The outflows were found to be driven by star formation and are carrying strong magnetic fields that may play a key role in generating the galaxy's overall magnetic field.

SourceCSIRO Australia·JournalNature·DateJan 2, 2013

Galaxy-wide echoes from the past

Astronomers have identified a new class of galaxies, known as green beans, which are rare and display the largest and brightest glowing regions ever found. These giant glows are thought to be echoes from when the central black hole was more active in the past, providing valuable insights into galaxy evolution.

SourceESO·JournalThe Astrophysical Journal·DateDec 5, 2012

When galaxies eat galaxies

Astronomers discover that massive galaxies with 100 billion stars are growing denser due to repeated collisions and mergers. The study used gravitational lenses to analyze the mass distribution in these galaxies, finding that major collisions between large galaxies lead to increased mass density at their centers.