Where is the Eridanus Supervoid?
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The results of the cosmological survey, published in Monthly Notices of the Royal Astronomical Society, point to the existence of the Eridanus supervoid, a span of nothingness 1.8 billion light years across located about 3 billion light years from the Milky Way.
When was the Eridanus Supervoid discovered?
2007
The Eridanus Supervoid is a large supervoid (an area of the universe devoid of galaxies) discovered as of 2007. At a diameter of about one billion light years it is the second largest known void, superseded only by the Giant Void in Canes Venatici.
What is the largest supervoid in the universe?
the Boötes void
At nearly 330 million light-years in diameter (approximately 0.27% of the diameter of the observable Universe), or nearly 236,000 Mpc3 in volume, the Boötes void is one of the largest known voids in the Universe, and is referred to as a supervoid.
What is a supervoid in space?
The “supervoid”, as it is known, is a spherical blob 1.8 billion light years across that is distinguished by its unusual emptiness. István Szapudi, who led the work at the University of Hawaii at Manoa, described the object as possibly “the largest individual structure ever identified by humanity”.
How big is the Eridanus Supervoid?
1.8 billion lightyears wide
Among the largest structures known to humanity, the supervoid in the constellation Eridanus is a massive, elongated, cigar-shaped void in the cosmic web that’s 1.8 billion lightyears wide and has been observed to contain about 30% less matter than the surrounding galactic region.
What is the myth of Eridanus?
The best known myth associated with Eridanus is the rise and fall of Phaeton, son of Helios the Sun god (Apollo). Helios’s task as a god was to take the reins of a chariot lead by white horses and traverse the heavens above earth.
Where is the Great Attractor located?
Laniakea Supercluster
The Great Attractor is “an apparent gravitational anomaly in intergalactic space at the center of the local Laniakea Supercluster,” in which the Milky Way is located.
What is the Eridanus Supervoid?
The Eridanus Supervoid is a large supervoid (an area of the universe devoid of galaxies) discovered as of 2007. At a diameter of about one billion light years it is the second largest known void, superseded only by the Giant Void in Canes Venatici .
Is the southern Eridanus void connected to the Sculptor Void?
The Southern Eridanus void is connected to the Eridanus void by a hole in the distribution of galaxies separating the two. A hole in the distribution of galaxies separating Sculptor and Southern Eridanus voids the size of (redshift) 1250 km/s appears to exist.
What is the constellation Eridanus known for?
The constellation of Eridanus, the river, as seen by the naked eye from northern latitudes. At its southern end is the magnitude 0.5 star Achernar, designated Alpha Eridani. It is a blue-white hued main sequence star 144 light-years from Earth, whose traditional name means “the river’s end”.
What is the meteor shower called in Eridanus?
The Nu Eridanids, a recently discovered meteor shower, radiate from the constellation between August 30 and September 12 every year; the shower’s parent body is an unidentified Oort cloud object. Another meteor shower in Eridanus is the Omicron Eridanids, which peak between November 1 and 10.