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相关论文: Galaxy peculiar velocities in the Zone of Avoidanc…

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Dust extinction and stellar confusion by the Milky Way reduce the efficiency of detecting galaxies at low Galactic latitudes, creating the so-called Zone of Avoidance. This stands as a stumbling block in charting the distribution of…

星系天体物理 · 物理学 2015-06-23 K. Said , R. C. Kraan-Korteweg , T. H. Jarrett

Current studies of the peculiar velocity flow field in the Local Universe are limited by the lack of detection of galaxies behind the Milky Way. The contribution of the largely unknown mass distribution in this "Zone of Avoidance" (ZoA) to…

宇宙学与河外天体物理 · 物理学 2011-07-07 Wendy L. Williams , Patrick A. Woudt , Renee C. Kraan-Korteweg

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…

天体物理学 · 物理学 2015-06-24 Renee C. Kraan-Korteweg , Sebastian Juraszek

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…

天体物理学 · 物理学 2007-05-23 Ofer Lahav

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…

星系天体物理 · 物理学 2015-06-22 Wendy L. Williams , Renée C. Kraan-Korteweg , Patrick A. Woudt

We present a homogeneous 2MASS bright galaxy catalogue at low Galactic latitudes ($|b| \le 10.0^{\rm o}$, called Zone of Avoidance) which is complete to a Galactic extinction-corrected magnitude of $K^o_s \le 11.25^{\rm m}$. It also…

星系天体物理 · 物理学 2018-11-28 Anja C. Schröder , Wim van Driel , Renee C. Kraan-Korteweg

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…

天体物理学 · 物理学 2007-05-23 Renee C. Kraan-Korteweg

We present a refined deep-learning-based method to reconstruct the three-dimensional dark matter density, gravitational potential, and peculiar velocity fields in the Zone of Avoidance (ZOA), a region near the galactic plane with limited…

宇宙学与河外天体物理 · 物理学 2025-11-07 Alexandra Dupuy , Donghui Jeong , Sungwook E. Hong , Ho Seong Hwang , Juhan Kim , Hélène M. Courtois

Galaxies uncovered in the Zone of Avoidance (ZOA) with deep optical searches are compared to the distribution of objects in the 2MASS Extended Source Catalog (2MASX). While the galaxy density of optical surveys is strongly correlated to the…

天体物理学 · 物理学 2007-05-23 Renee C. Kraan-Korteweg , Thomas Jarrett

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…

天体物理学 · 物理学 2007-05-23 Renee C. Kraan-Korteweg , Baerbel Koribalski , Sebastian Juraszek

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…

天体物理学 · 物理学 2015-06-24 A. Schröder , R. C. Kraan-Korteweg , G. A. Mamon

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…

天体物理学 · 物理学 2007-05-23 Saleem Zaroubi

High-accuracy HI profiles and linewidths are presented for inclined ($(b/a)^o < 0.5$) spiral galaxies in the southern Zone of Avoidance (ZOA). These galaxies define a sample for use in the determinations of peculiar velocities using the…

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…

天体物理学 · 物理学 2007-05-23 A. Schroeder , R. C. Kraan-Korteweg , G. A. Mamon

We place constraints on the dynamics of the Local Group (LG) by comparing the dipole of the Cosmic Microwave Background (CMB) with the peculiar velocity induced by the 2MRS galaxy sample. The analysis is limited by the lack of surveyed…

天体物理学 · 物理学 2009-11-13 Abraham Loeb , Ramesh Narayan

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…

宇宙学与河外天体物理 · 物理学 2017-08-23 Jenny G. Sorce , Matthew Colless , Renee C. Kraan-Korteweg , Stefan Gottloeber

The peculiar velocity field offers a unique way to probe dark matter density field on large scales at low redshifts. In this work, we have compiled a new sample of 465 peculiar velocities from low redshift $(z < 0.067)$ Type Ia supernovae.…

宇宙学与河外天体物理 · 物理学 2020-10-05 Supranta S. Boruah , Michael J. Hudson , Guilhem Lavaux

Using the 2MASS near-infrared photometry and high signal-to-noise HI 21-cm data from the Arecibo, Green Bank, Nancay, and Parkes telescopes, we calculate the redshift-independent distances and peculiar velocities of 2,018 bright inclined…

The Tully-Fisher (Tully and Fisher 1977; TF) relation is applied to obtain peculiar velocities of field spirals galaxies and to calculate dipoles of the peculiar velocity field to cz ~ 8000 km/s. The field galaxy sample is spatially…

天体物理学 · 物理学 2009-10-30 R. Giovanelli , M. Haynes , W. Freudling , L. da Costa , J. Salzer , G. Wegner

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…

星系天体物理 · 物理学 2026-05-26 Jeremy Mould , Helene M. Courtois , Renee C. Kraan-Korteweg , Amber Hollinger
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