An Overview of Uncovered and Suspected Large-Scale Structures behind the Milky Way

Abstract

Various dynamically important extragalactic large-scale structures in the local Universe lie behind the Milky Way. Most of these structures (predicted and unexpected) have only recently been made ``visible'' through dedicated deep surveys at various wavelengths. The wide range of observational searches (optical, near infrared, far infrared, radio and X-ray) for galaxies in the Zone of Avoidance (ZOA) will be reviewed and the uncovered and suspected large-scale structures summarised. Particular emphasis is given to the Great Attractor region where the existence of yet another cluster is suspected (Woudt 1998). Predictions from reconstructions of the density field in the ZOA are discussed and compared with observational evidence. Although no major structures are predicted out to about v < 10000 km/s for which no observational evidence exists, the comparison between reconstructed density fields and the observed galaxy distribution remain important as they allow derivations of the density and biasing parameters.

To appear in PASA 16. Proceedings of workshop "HI in the Local Universe, II", held in Melbourne, Sept. 1998. 9 pages, LaTeX2e, 1 encapsulated PS figure

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Cited by in corpus (14)

• 2MASS Extended Sources in the Zone of Avoidance
• The Parkes HI Zone of Avoidance Survey
• HI Bright Galaxies in the Southern Zone of Avoidance
• Structures in the Great Attractor Region
• A catalogue of galaxies behind the southern Milky Way. - II. The Crux and Great Attractor regions (l = 289deg - 338deg)
• The highly obscured region around PKS1343-601 - I. Galactic interstellar extinctions using DENIS galaxy colours
• Fermi-LAT and Suzaku Observations of the Radio Galaxy Centaurus B
• The VVV Near-IR Galaxy Catalogue beyond the Galactic disk
• The HI Parkes Zone of Avoidance Shallow Survey
• Mapping the Hidden Universe: The Galaxy Distribution in the Zone of Avoidance
• DENIS Observations of Multibeam Galaxies in the Zone of Avoidance
• Analysis of Fermi-LAT observations, UHECRs and neutrinos from the radio galaxy Centaurus B
• Faint galaxies in the Zone of Avoidance revealed by JWST/NIRCam
• Galaxy clustering in the VVV Near-IR Galaxy Catalogue