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Related papers: Cosmological Structures behind the Milky Way

200 papers

Dust and stars in the Milky Way create a ``Zone of Avoidance'' (ZOA) in the distribution of optically visible galaxies of about 25% of the sky. To reduce this gap, optical searches for partially obscured galaxies have been performed. The…

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

We discuss the possibilities of extragalactic large-scale studies behind the Zone of Avoidance (ZOA) using complementary multi-wavelength data from optical, systematic blind HI, and near-infrared (NIR) surveys. Applying these data to the…

Astrophysics · Physics 2007-05-23 A. Schroeder , R. C. Kraan-Korteweg , G. A. Mamon

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…

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

A first analysis of a deep blind HI survey covering the southern Zone of Avoidance plus an extension towards the north (196 < l < 52 deg) obtained with the Multibeam receiver at the 64m Parkes telescope reveals slightly over a thousand…

Astrophysics · Physics 2007-05-23 R. C. Kraan-Korteweg , L. Staveley-Smith , J. Donley , P. A. Henning , ;

We used the Nan\c{c}ay Radio Telescope (NRT) to measure the 21 cm line emission of near-infrared bright galaxies in the northern Zone of Avoidance (ZoA) without previous redshift determinations. We selected galaxies with…

Cosmology and Nongalactic Astrophysics · Physics 2016-08-10 M Ramatsoku , R C Kraan-Korteweg , A C Schröder , W van Driel

The nature and extent of the Great Attractor (GA) has been the subject of much debate in the past decade, partly due to the fact that a large fraction of the GA overdensity is hidden by the southern Milky Way. Based on our deep optical…

Astrophysics · Physics 2007-05-23 P. A. Woudt , R. C. Kraan-Korteweg , A. P. Fairall

We report on the discovery of two spiral galaxies located behind the southern Milky Way, within the least explored region of the Great Attractor. They lie at 317, -0.5 deg galactic, where obscuration from Milky Way stars and dust exceeds 13…

Context. The location of the Solar System constrains the detection of extragalactic sources beyond the Milky Way(MW) plane. The optical observations are hampered in the so--called Zone of Avoidance (ZOA) where stellar crowding and Galactic…

Current studies of the peculiar velocity flow field in the Local Universe are limited by either the lack of detection or accurate photometry for galaxies at low Galactic latitudes. The contribution to the dynamics of the Local Group of the…

Astrophysics of Galaxies · Physics 2015-06-22 Wendy L. Williams , Renée C. Kraan-Korteweg , Patrick A. Woudt

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

As part of our program to map the large-scale distribution of galaxies behind the Milky Way, we used the Parkes 210 ft (64 m) radio telescope for pointed HI observations of a sample of low surface-brightness (due to heavy obscuration)…

Astrophysics · Physics 2009-11-07 Renee C. Kraan-Korteweg , Patricia A. Henning , Anja C. Schroeder

We map the smoothed mass-density distribution in the Galactic zone of avoidance (zoa), within $6000\kms$ of the Local Group, using potent reconstruction from peculiar velocities of galaxies. The interpolation into the zoa is based on the…

Astrophysics · Physics 2015-06-24 Tsafrir Kolatt , Avishai Dekel , Ofer Lahav

Automated methods for classifying extragalactic objects in large surveys offer significant advantages compared to manual approaches in terms of efficiency and consistency. However, the existence of the Galactic disk raises additional…

A blind HI survey of the extragalactic sky behind the southern Milky Way has been conducted with the multibeam receiver on the 64-m Parkes radio telescope. The survey covers the Galactic longitude range 212 < l < 36 and Galactic latitudes…

The Clusters in the Zone of Avoidance (CIZA) project is producing the first statistically complete catalogue of X-ray selected galaxy clusters behind the Galactic plane. Current optically selected cluster catalogues have excluded a wide…

Astrophysics · Physics 2007-05-23 D. D. Kocevski , H. Ebeling , C. R. Mullis

The Arecibo L-band Feed Array Zone of Avoidance Survey (ALFA ZOA) will map 1350-1800 square degrees at low Galactic latitude, providing HI spectra for galaxies in regions of the sky where our knowledge of local large scale structure remains…

Galaxy peculiar velocity data provide important dynamical clues to the structures obscured by the Zone of Avoidance (hereafter, ZOA) with resolution >~ 500km/s. This indirect probe complements the very challenging approach of directly…

Astrophysics · Physics 2007-05-23 Saleem Zaroubi

The Laniakea Supercluster is the closest large scale structure of galaxies. Is such a structure expected in the standard cold dark matter model of cosmology? This would be a relatively simple question to answer, were it not for the fact…

Astrophysics of Galaxies · Physics 2026-05-26 Jeremy Mould , Helene M. Courtois , Renee C. Kraan-Korteweg , Amber Hollinger

Motivated by recent discoveries of nearby galaxies in the Zone of Avoidance, we conducted a pilot study of galaxy candidates at low Galactic latitude, near Galactic longitude $l \sim 135^0$, where the Supergalactic Plane is crossed by the…

Astrophysics · Physics 2009-10-30 O. Lahav , N. Brosch , E. Goldberg , G. K. T. Hau , R. C. Kraan-Korteweg , A. J. Loan