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Due to the foreground extinction of the Milky Way, galaxies appear increasingly fainter the closer they lie to the Galactic Equator, creating a "zone of avoidance" of about 25% in the distribution of optically visible galaxies. A…

Astrophysics · Physics 2009-10-31 Renee C. Kraan-Korteweg , Ofer Lahav

This paper provides an update to the review on extragalactic large-scale structures uncovered in the Zone of Avoidance (ZOA) by Kraan-Korteweg & Lahav 2000, in particular in the Great Attractor region. Emphasis is given to the penetration…

Astrophysics · Physics 2015-06-24 Renee C. Kraan-Korteweg

We report here on extragalactic large-scale structures uncovered by a deep optical survey for galaxies behind the southern Milky Way. Systematic visual inspection of the ESO/SRC-survey revealed over 10000 previously unknown galaxies in the…

Astrophysics · Physics 2015-06-24 R. C. Kraan-Korteweg , P. A. Woudt , P. A. Henning

Dust and stars in the plane of the Milky Way create a "Zone of Avoidance" in the extragalactic sky. Galaxies are distributed in gigantic labyrinth formations, filaments and great walls with occasional dense clusters. They can be traced all…

Astrophysics · Physics 2007-05-23 Renee C. Kraan-Korteweg

About 25% of the optical extragalactic sky is obscured by the dust and stars of our Milky Way. Dynamically important structures might still lie hidden in this zone. Various approaches are presently being employed to uncover the galaxy…

Astrophysics · Physics 2007-05-23 Renee C. Kraan-Korteweg , Baerbel Koribalski , Sebastian Juraszek

Due to the foreground extinction of the Milky Way, galaxies become increasingly faint as they approach the Galactic Equator creating a ``zone of avoidance'' (ZOA) in the distribution of optically visible galaxies of about 25%. A…

Astrophysics · Physics 2015-06-24 Renee C. Kraan-Korteweg , Sebastian Juraszek

We present the latest results of the Clusters in the Zone of Avoidance (CIZA) survey, which is mapping the large-scale matter distribution behind the Milky Way by performing the first systematic search for X-ray luminous galaxy clusters at…

Astrophysics · Physics 2011-10-11 Dale D. Kocevski , Harald Ebeling , Chris R. Mullis , R. Brent Tully

About 25% of the optical extragalactic sky is obscured by the dust and stars of our Milky Way. Dynamically important structures might still lie hidden in this zone. Various approaches are presently being employed to uncover the galaxy…

Astrophysics · Physics 2016-01-27 R. C. Kraan-Korteweg , A. Schroeder , G. A. Mamon , S. Ruphy

The motivation and major ways for probing the Zone of Avoidance (ZOA) are reviewed. Galaxies hidden behind the ZOA may have important implications for the internal dynamics of the Local Group, for the origin of its motion relative to the…

Astrophysics · Physics 2007-05-23 Ofer Lahav

This conference has brought together many of the world's `cosmographers', particularly those focussed on the mapping nearby large-scale structures. Not surprisingly, numerous portrayals of the Local Cosmic Web and its characteristics have…

Astrophysics · Physics 2007-05-23 Anthony Fairall , Ofer Lahav

Our Galaxy blocks a significant portion of the extragalactic sky from view, hampering studies of large-scale structure. This produces an incomplete knowledge of the distribution of galaxies, and, assuming galaxies trace mass, of the gravity…

Astrophysics · Physics 2009-10-30 P. A. Henning , R. C. Kraan-Korteweg , A. J. Rivers , A. J. Loan , O. Lahav , W. B. Burton

The census of massive clusters of galaxies in the local Universe is almost complete, thanks to their prominent observational signatures at X-ray, optical, and sub-mm wavelengths. Nevertheless, a number of such systems are likely to be…

Rather than giving a complete overview on extragalactic Zone of Avoidance research, this paper will highlight some recent discoveries in the ZOA, such as new NIR to FIR observations (IRSF, Spitzer) of the most massive disk galaxy found…

Astrophysics · Physics 2008-10-23 R. C. Kraan-Korteweg , K. J. van der Heyden , M. E. Cluver , P. A. Woudt

As part of our programme to map the large-scale distribution of galaxies behind the southern Milky Way, we observed 314 optically-selected, partially-obscured galaxies in the Zone of Avoidance (ZOA) in the Crux and Great Attractor (GA)…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 Anja C. Schroeder , Renee C. Kraan-Korteweg , Patricia A. Henning

Roughly 25% of the optical extragalactic sky is obscured by the dust and stars of our Milky Way. Dynamically important structures might still lie hidden in this zone. Various surveys are presently being employed to uncover the galaxy…

Astrophysics · Physics 2015-06-24 A. Schröder , R. C. Kraan-Korteweg , G. A. Mamon

The Zone of Avoidance (ZOA), whose emptiness is an artifact of our Galaxy dust, has been challenging observers as well as theorists for many years. Multiple attempts have been made on the observational side to map this region in order to…

Cosmology and Nongalactic Astrophysics · Physics 2017-08-23 Jenny G. Sorce , Matthew Colless , Renee C. Kraan-Korteweg , Stefan Gottloeber

Spectroscopic observations have been carried out for galaxies in the Milky Way with the 1.9 m telescope of the South African Astronomical Observatory (SAAO). The galaxies were selected from a deep optical galaxy search covering 266<l<296…

Astrophysics · Physics 2007-05-23 Renee C. Kraan-Korteweg , Tony P. Fairall , Chantal Balkowksi

The universe region obscured by the Milky Way is very large and only future blind large HI redshift, and targeted peculiar surveys on the outer borders will determine how much mass is hidden there. Meanwhile, we apply for the first time two…

Cosmology and Nongalactic Astrophysics · Physics 2019-10-09 Helene M. Courtois , Renee. C. Kraan-Korteweg , Alexandra Dupuy , Romain Graziani , Noam I Libeskind

A deep optical galaxy search behind the southern Milky Way and a subsequent redshift survey of the identified obscured galaxies traces clusters and superclusters into the deepest layers of Galactic foreground extinction (A_B <= 3^m - 5^m).…

Astrophysics · Physics 2007-05-23 Patrick A. Woudt , Renee C. Kraan-Korteweg

The HI Parkes Zone of Avoidance Survey is a 21 cm blind search with the multibeam receiver on the 64-m radiotelescope, looking for galaxies hidden behind the southern Milky Way. The first, shallow (15 mJy rms) phase of the survey has…

Astrophysics · Physics 2015-06-24 P. A. Henning , L. Staveley-Smith , R. C. Kraan-Korteweg , E. M. Sadler
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