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| Perseus–Pisces Supercluster | |
|---|---|
| Name | Perseus–Pisces Supercluster |
| Type | Supercluster |
| Epoch | J2000 |
| Distance | ~250 million light-years |
| Redshift | ~0.017 |
Perseus–Pisces Supercluster. The Perseus–Pisces Supercluster is one of the most prominent nearby concentrations of galaxies and galaxy clusters, forming an extended filamentary structure that influences the dynamics of the Local Group and the Virgo Supercluster environs. It is studied in connection with major surveys and observatories such as the Palomar Observatory, Arecibo Observatory, Sloan Digital Sky Survey, Two Micron All Sky Survey, and instruments on Hubble Space Telescope, Chandra X-ray Observatory, XMM-Newton, and Spitzer Space Telescope. The region has been the target of research by teams at institutions including Harvard–Smithsonian Center for Astrophysics, Max Planck Society, European Southern Observatory, California Institute of Technology, and University of Cambridge.
The Perseus–Pisces Supercluster is an extended filament that includes rich clusters like Perseus Cluster and Abell 262 and connects to structures mapped by the CfA Redshift Survey, 2dF Galaxy Redshift Survey, and 6dF Galaxy Survey. Studies by researchers affiliated with Fritz Zwicky's legacy, Vera Rubin's rotation curve work, and surveys inspired by Edwin Hubble have used the supercluster to probe dark matter inferred by measurements tied to Jan Oort and Fritz Zwicky methodologies. Cosmological analyses referencing the Lambda-CDM model, Cold Dark Matter, and the Cosmic Microwave Background data from Planck (spacecraft) and Wilkinson Microwave Anisotropy Probe contextualize its role in the cosmic web studied alongside features like the Great Attractor, Shapley Supercluster, and Sloan Great Wall.
The filamentary morphology comprises galaxy clusters, groups, and intercluster galaxies identified in catalogs such as the Abell catalog, Zwicky catalog, and datasets from the NASA/IPAC Extragalactic Database. Prominent members include the Perseus Cluster, Abell 426, Abell 347, and Abell 569, while associated groups appear in compilations by Giovanelli and Haynes and investigators at the National Radio Astronomy Observatory. X-ray observations by ROSAT and Chandra X-ray Observatory reveal hot intracluster gas in the Perseus core influenced by activity from the radio galaxy NGC 1275 and the central active galactic nucleus studied in contexts involving Seyfert galaxies and radio galaxies discussed by researchers from Jet Propulsion Laboratory and European Space Agency teams.
The supercluster spans roughly 40 degrees across the sky and lies at a mean distance of about 250 million light-years (z ~ 0.017), intersecting constellations such as Perseus (constellation), Pisces (constellation), Andromeda (constellation), Triangulum (constellation), and Aries (constellation). Its apparent elongation was characterized using redshift surveys from facilities including Palomar Observatory, Kitt Peak National Observatory, and Arecibo Observatory and incorporated into maps produced by teams at Harvard College Observatory and the Smithsonian Astrophysical Observatory. The supercluster forms part of the Laniakea-related discussions alongside mappings by Tully (astronomer) and the Cosmicflows project.
Within the framework of structure formation driven by Lambda-CDM model gravitational instability, the Perseus–Pisces filament arose from anisotropic collapse amplified by dark matter perturbations seeded in the inflation epoch as described by theories from Alan Guth and Andrei Linde. Numerical simulations by groups at Max Planck Institute for Astrophysics, Princeton University, Lawrence Berkeley National Laboratory, and Los Alamos National Laboratory using codes inspired by work from Volker Springel reproduce filamentary assembly via mergers comparable to processes seen in the Illustris project and Millennium Simulation. Feedback from active nuclei in galaxies like NGC 1275 and supernova-driven winds traced to research by Eve Ostriker and Christopher McKee have influenced intracluster medium heating and star formation histories cataloged by teams at Carnegie Institution for Science.
Early recognition of the concentration traces to cataloging efforts by George O. Abell and Fritz Zwicky; systematic redshift mapping by Geller and Huchra in the Center for Astrophysics Redshift Survey highlighted the filament. Radio surveys by Giovanelli and Haynes, neutral hydrogen observations at Arecibo Observatory, and optical imaging from Palomar Observatory and Kitt Peak National Observatory expanded membership lists cataloged at NASA/IPAC. X-ray detections by ROSAT and follow-up spectroscopy with Keck Observatory, Very Large Telescope, and Gemini Observatory refined cluster dynamics, while studies by investigators affiliated with University of Cambridge, Massachusetts Institute of Technology, and University of Toronto have informed models of peculiar velocities and flow fields measured against datasets like COSMOS (astronomical survey).
Key clusters include Perseus Cluster (Abell 426), Abell 262, Abell 347, Abell 569, and galaxies such as NGC 1275, NGC 1265, NGC 128, and systems cataloged in the Messier catalog and New General Catalogue. Active galaxies studied in the region include examples classified alongside objects in surveys by Sloan Digital Sky Survey teams, and radio sources mapped by Very Large Array and LOFAR. Stellar population studies referencing Henry Norris Russell-inspired frameworks, distance indicators like Cepheid variables and Type Ia supernovae observed with Hubble Space Telescope and teams at Carnegie Observatories have helped place member galaxies in a coherent distance ladder anchored to work by Henrietta Swan Leavitt.
The Perseus–Pisces filament exerts a notable gravitational influence on peculiar velocities within the local universe and is discussed alongside the Local Supercluster (Virgo Supercluster), the Great Attractor, the Shapley Supercluster, and the Sloan Great Wall in studies by Tully (astronomer), Dekel (astronomer), and groups behind the Cosmicflows projects. Its alignment with other filaments contributes to anisotropic flows analyzed using datasets from Planck (spacecraft), Wilkinson Microwave Anisotropy Probe, and large surveys like 2MASS Redshift Survey and 2dF Galaxy Redshift Survey, informing cosmological constraints pursued by teams at European Space Agency, NASA, and the International Astronomical Union.
Category:Superclusters