News tagged with dwarf galaxies

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Among galaxies, a voracious flea

Even a dwarf galaxy with very low mass is capable of accreting smaller nearby galaxies, according to an international team of astronomers led by Francesca Annibali of INAF, the Italian National Institute for Astrophysics. ...

dateAug 10, 2016 in Astronomy
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Hubble peers into the mouth of Leo A

At first glance, this NASA/ESA Hubble Space Telescope image seems to show an array of different cosmic objects, but the speckling of stars shown here actually forms a single body—a nearby dwarf galaxy known as Leo A. Its ...

dateApr 18, 2016 in Astronomy
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Students map Milky Way with dwarf stars

Two astronomy students from Leiden University have mapped the entire Milky Way Galaxy in dwarf stars for the first time. They show that there are a total of 58 billion dwarf stars, of which seven per cent reside in the outer ...

dateMar 16, 2016 in Astronomy
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Dark matter satellites trigger massive birth of stars

One of the main predictions of the current model of the creation of structures in the universe, known at the Lambda Cold Dark Matter model, is that galaxies are embedded in very extended and massive halos of dark matter that ...

dateMar 09, 2016 in Astronomy
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Galaxy quakes could improve hunt for dark matter

A trio of brightly pulsating stars at the outskirts of the Milky Way is racing away from the galaxy and may confirm a method for detecting dwarf galaxies dominated by dark matter and explain ripples in the outer disk of the ...

dateJan 07, 2016 in Astronomy
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VLT revisits a curious cosmic collision

The spectacular aftermath of a 360 million year old cosmic collision is revealed in great detail in new images from ESO's Very Large Telescope at the Paranal Observatory. Among the debris is a rare and mysterious young dwarf ...

dateDec 09, 2015 in Astronomy
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The hottest white dwarf in the Galaxy

Astronomers at the Universities of Tübingen and Potsdam have identified the hottest white dwarf ever discovered in our Galaxy. With a temperature of 250,000 degrees Celsius, this dying star at the outskirts of the Milky ...

dateNov 25, 2015 in Astronomy
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