A team of astronomers has made a remarkable discovery: a group of five dwarf galaxies aligned in a near-perfect line, resembling a string of cosmic pearls. This rare find challenges our understanding of dwarf galaxy behavior.
Astronomers have discovered a rare group of five dwarf galaxies located relatively close to Earth. These galaxies exist in a near-perfect alignment, resembling a string of cosmic pearls in the sky. (designated D1 to D5) are rhythmically dancing with one another while others are engaged in a'cosmic tug of war,' ripping gas and stars away from each other.— a surprising trait for dwarf galaxies in a group,' team leader Cristiano G. Sabiu of the University of Seoul told Space.com.
'Even more striking is their nearly perfect alignment in the sky, forming a distinct 'string of cosmic pearls.'', which mapped one-quarter of the entire sky over Earth in great detail, determining the positions and absolute brightnesses of hundreds of millions of celestial objects. Data from several other astronomical surveys also aided the discovery team.As the name implies, dwarf galaxies are low-mass realms with low stellar populations, which means they are also rather dim in terms of brightness. The total mass of these five dwarf galaxies appears to be around 60.2 billion solar masses (one solar mass being equivalent to theThe most massive of these five dwarf galaxies (D2) has a mass equivalent to just 275 million suns. The least massive, D4, has a mass of just 14.7 million solar masses. That means, while D1 to D5 fit in well in terms of other dwarf galaxy characteristics, they are major outliers in terms of their companionship.Dwarf galaxies tend to be fairly lonesome, with less than 5% found with close galactic companions. The chance of finding five dwarf galaxies grouped together as they are in this case is less than 0.004%
DWARF GALAXIES ALIGNMENT COSMIC DISCOVERY ASTONOMY SPACE NEWS
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