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Since then, some additional works have cast doubt on the "supervoid" explanation. The correlation between the NVSS dip and the Cold Spot was found to be marginal using a more conservative statistical analysis. [13] Also, a direct survey for galaxies in several one-degree-square fields within the Cold Spot found no evidence for a supervoid. [14]
Southern Eridanus 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. [11] Fornax Void: Hercules Void: 15.5 h +30° cz=7000 km/s ...
Eridanus Supervoid: 489,000,000 (most likely value) A recent analysis of the Wilkinson Microwave Anisotropy Probe (WMAP) in 2007 has found an irregularity of the temperature fluctuation of the cosmic microwave background within the vicinity of the constellation Eridanus with analysis found to be 70 microkelvins cooler than the average CMB ...
Eridanus is a constellation which stretches along the southern celestial hemisphere. It is represented as a river . One of the 48 constellations listed by the 2nd century AD astronomer Ptolemy , it remains one of the 88 modern constellations .
The Eridanus Group, sometimes called the Eridanus Cloud, is a nearby loose grouping of galaxies at a mean distance of approximately 75 Mly (23 ± 2 Mpc) in the constellation Eridanus. [1] Redshift values show that there are approximately 200 galaxies associated with the group, approximately 70% of which are spiral and irregular type galaxies ...
Eridanus (constellation), a southern constellation; Eridanus Cluster of galaxies in the constellation Eridanus; Eridanus II, a low-surface brightness dwarf galaxy in the constellation Eridanus; Eridanus Supervoid, a large-scale cosmic underdensity
In 1847, John Herschel had pointed out the existence of a stream of galaxies or nebulae as they were known at the time in the constellations of Cetus, Fornax, Eridanus, Horologium, and Dorado. Later in 1953 Gérard de Vaucouleurs recognized this band as a supercluster [ 1 ] dubbing it the ''southern supergalaxy'', [ 13 ] with many of the groups ...
They were able to measure the mass of the black hole. They determined the mass of about 660 million solar-masses with an uncertainty of just 10%. NGC 1332's black hole is the most massive black hole in the Eridanus Cluster, and it is even more massive than NGC 1399's black hole (NGC 1399 is the Fornax cluster's central galaxy). [8]