The Pavo–Indus Supercluster is a neighboring

supercluster A supercluster is a large group of smaller galaxy clusters or galaxy groups; they are among the largest known structures in the universe. The Milky Way is part of the Local Group galaxy group (which contains more than 54 galaxies), which in tu ...

located about away in the constellations of Pavo,

Indus The Indus ( ) is a transboundary river of Asia and a trans- Himalayan river of South and Central Asia. The river rises in mountain springs northeast of Mount Kailash in the Western Tibet region of China, flows northwest through the dis ...

, and

Telescopium Telescopium is a minor constellation in the southern Celestial sphere, celestial hemisphere, one of twelve named in the 18th century by French astronomer Nicolas-Louis de Lacaille and one of several depicting scientific instruments. Its name i ...

. The supercluster contains three main clusters, Abell 3656, Abell 3698, and Abell 3742. Other groups and clusters in the supercluster include the NGC 6769 Group and Abell S805 (IC 4765 Group, Pavo II, DRCG 1842-63) and the massive Norma Cluster. In 2014, it was announced that the Pavo–Indus Supercluster is a lobe in a greater supercluster, Laniakea, that is centered on the Great Attractor. The

Virgo Supercluster The Local Supercluster (LSC or LS), or Virgo Supercluster is a formerly defined supercluster containing the Virgo Cluster and Local Group, which itself contains the Milky Way and Andromeda galaxies, as well as others. At least 100 galaxy group ...

would also be part of this greater supercluster, thus becoming the local supercluster.

Structure

The Pavo–Indus Supercluster exhibits a wall or filamentary structure that extends to a total length of . The supercluster along with the Telescopium−Grus Cloud form parts of a wall bounding the Local Void and the

Sculptor Void Sculpture is the branch of the visual arts that operates in three dimensions. Sculpture is the three-dimensional art work which is physically presented in the dimensions of height, width and depth. It is one of the plastic arts. Durable ...

Nearby superclusters

Centaurus Supercluster

In 1983, in a paper by Winkler et al it was suggested based on redshift maps of the distribution of galaxies that the Pavo–Indus Supercluster may be connected to the Centaurus Supercluster. Later in 1984, in a collaboration with astronomer Tony Fairall and in a separate paper by Fairall published in 1988 titled "A redshift map of the Triangulum Australe–Ara region: further indication that Centaurus and Pavo are one and the same supercluster" it was concluded based on distribution of galaxies in redshift space that the Pavo–Indus supercluster was indeed connected to the

Centaurus Centaurus () is a bright constellation in the southern sky. One of the 88 modern constellations by area, largest constellations, Centaurus was included among the 48 constellations listed by the 2nd-century astronomer Ptolemy, and it remains one ...

and Hydra supercluster and that the Virgo Supercluster was an appendage of a larger structure involving these superclusters. Later studies concluded that Pavo–Indus formed part of a wall of galaxies similar in size to the CfA2 Great Wall, dubbed the Norma Wall with the Norma Cluster at its center similar to the

Coma Cluster The Coma Cluster (Abell 1656) is a large cluster of galaxies that contains over 1,000 identified galaxies. Along with the Leo Cluster (Abell 1367), it is one of the two major clusters comprising the Coma Supercluster. It is located in and tak ...

. This wall encompasses the Pavo–Indus supercluster through the Norma Cluster, passing the ZOA in the Great Attractor region, to meet up with the Centaurus–Crux Cluster at a redshift at about 5,700–6,200 km/s s and the CIZA J1324.7−5736 cluster at a redshift of 5700 km/s while also splitting off to form the Centaurus Wall passing the

galactic plane The galactic plane is the plane (geometry), plane on which the majority of a disk-shaped galaxy's mass lies. The directions perpendicular to the galactic plane point to the galactic poles. In actual usage, the terms ''galactic plane'' and ''galac ...

to meet up with

Centaurus Cluster The Centaurus Cluster (A3526) is a cluster of hundreds of galaxies, located approximately 170 million light-years away in the Centaurus constellation. The brightest member galaxy is the elliptical galaxy NGC 4696 (~11m). The Centaurus clust ...

where the supercluster originates.

Perseus–Pisces Supercluster

Di Nel la H. et al found no evidence of a connection between Pavo–Indus and the Perseus–Pisces Supercluster. However, Tully et al. revealed the existence of a filamentary extension of the Pavo–Indus Supercluster known as the Arch that caps the Local Void in the supergalactic north and provides a connection to the Perseus–Pisces Supercluster before terminating close to the NGC 7242 Cluster.

Ophiuchus Supercluster

The Pavo–Indus supercluster lies physically close to the Ophiuchus Supercluster and may be connected in an unknown filament between the two superclusters.

References

External links

The Pavo-Indus Supercluster
from ''An Atlas of the Universe'' {{DEFAULTSORT:Pavo-Indus Supercluster Laniakea Supercluster Galaxy superclusters