Voids

Rood, H.

doi:10.1146/annurev.astro.26.1.245

Cited by 20 publications

(24 citation statements)

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“…A query which returns the papers which most cite the 150 papers most like Ben Bromley's (1994) thesis, as modified by the requirement that they contain the word "void" they contain the word "void." Thus the paper by El-Ad & Piran (1997) cited 26 papers out of the 150, the paper by Rood (1988) cited 19, etc. These are the papers with the most extensive discussions of a user defined very narrow subfield.…”

Section: Examplesmentioning

confidence: 99%

The NASA Astrophysics Data System: Overview

Kurtz

Eichhorn

Accomazzi

et al. 2000

Astron. Astrophys. Suppl. Ser.

113

101

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Abstract. The NASA Astrophysics Data System Abstract Service has become a key component of astronomical research. It provides bibliographic information daily, or near daily, to a majority of astronomical researchers worldwide.We describe the history of the development of the system and its current status. Urania (Boyce 1996), and the ADS role in the emerging electronic astronomical data environment are discussed. Astronomy is unique in that it already has a fully functional data resource, where several of the most important data sources exist on-line and interoperate nearly seamlessly. The ADS and the Strasbourg Data Center (CDS; Genova et al. 2000) form the core of this resource.We show several examples of how to use the ADS, and we show how ADS use has increased as a function of time. Currently it is still increasing exponentially, with a doubling time for number of queries of 17 months.Using the ADS logs we make the first detailed model of how scientific journals are read as a function of time since publication. We find four distinct components. We directly compare the readership rate with the citation rate for scientific articles as a function of age. Citations generally follow reads, but there are some differences.The main journals of astronomy have differences in the ways they are read and cited. We discuss these from a number of different aspects.The impact of the ADS on astronomy can be calculated after making some simple assumptions. We find that the ADS increases the efficiency of astronomical research by 333 Full Time Equivalent (2000 hour) research years per year, and that the value of the early development of the ADS for astronomy, compared with waiting for mature technologies to be adopted, is 2332 FTE research years.A full technical description of the ADS is in three companion articles:

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Section: Examplesmentioning

confidence: 99%

The NASA Astrophysics Data System: Overview

Kurtz

Eichhorn

Accomazzi

et al. 2000

Astron. Astrophys. Suppl. Ser.

113

101

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“…This lack of any uniform population of "field galaxies" gradually came into focus via the pioneering surveys of the 1970s (Chincarini & Rood 1976, 1979Tifft & Gregory 1976;Tarenghi et al 1978;Gregory & Thompson 1978;Chincarini 1978;Jõeveer et al 1978;Tully & Fisher 1978). Gregory & Thompson (1978) were the first to use the specific term "void" to treat low-density regions as specific objects; see Rood (1988b) and Rood (1988a) for a comprehensive review and historical account of those years. The phenomenology of voids became more clearly defined with the more extensive projects of the early 1980s, most notably the CfA I (Davis et al 1982) and CfA II surveys (de Lapparent et al 1986), when these regions were described as components of the structure of the universe.…”

Section: Introductionmentioning

confidence: 99%

The VIMOS Public Extragalactic Redshift Survey

Micheletti¹,

Iovino²,

Hawken³

et al. 2014

A&A

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Context. The characterisation of cosmic voids gives unique information about the large-scale distribution of galaxies, their evolution, and the cosmological model. Aims. We identify and characterise cosmic voids in the VIMOS Public Extragalactic Redshift Survey (VIPERS) at redshift 0.55 < z < 0.9. Methods. A new void search method is developed based upon the identification of empty spheres that fit between galaxies. The method can be used to characterise the cosmic voids despite the presence of complex survey boundaries and internal gaps. We investigate the impact of systematic observational effects and validate the method against mock catalogues. We measure the void size distribution and the void-galaxy correlation function. Results. We construct a catalogue of voids in VIPERS. The distribution of voids is found to agree well with the distribution of voids found in mock catalogues. The void-galaxy correlation function shows indications of outflow velocity from the voids.

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“…A complete linkage dendrogram was first introduced to astronomy by Máteme (1974) and its application to galaxy clustering has recently been reviewed by Rood (1988). In general, it is a two-dimensional plot representing the objects and the distances between them.…”

Section: Methodsmentioning

confidence: 99%

Do voids cluster?

Haque-Copilah

Basu

1994

PASP

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ABSTRACT. A dendrogram analysis is performed on an updated catalog of voids to determine whether voids cluster. Some clustering is evident with a characteristic scale of 59 h~l Mpc. This trend is more dominant in the Northern Hemisphere where the data are more complete. Southern Hemisphere data also show clustering effects, but rather weakly, possibly due to limited data. Results of the analysis are corroborated by checking the void distribution against a Poisson distribution and also by a two-point correlation function among the voids. However, the findings of the present paper do not correspond to the standard CDM scenario. Nevertheless, it is suggested that the seeds from which voids are formed may have originated with a biased distribution.

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Voids

Cited by 20 publications

References 0 publications

The NASA Astrophysics Data System: Overview

The NASA Astrophysics Data System: Overview

The VIMOS Public Extragalactic Redshift Survey

Do voids cluster?

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