How much a galaxy knows about its large-scale environment?: An information theoretic perspective

@article{Pandey2016HowMA,
  title={How much a galaxy knows about its large-scale environment?: An information theoretic perspective},
  author={B. Pandey and Suman Sarkar},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2016},
  volume={467}
}
  • B. Pandey, S. Sarkar
  • Published 1 November 2016
  • Physics
  • Monthly Notices of the Royal Astronomical Society
The small-scale environment characterized by the local density is known to play a crucial role in deciding the galaxy properties but the role of large-scale environment on galaxy formation and evolution still remain a less clear issue. We propose an information theoretic framework to investigate the influence of large-scale environment on galaxy properties and apply it to the data from the Galaxy Zoo project which provides the visual morphological classifications of $\sim 1$ million galaxies… 

Figures from this paper

Do galactic bars depend on environment?: an information theoretic analysis of Galaxy Zoo 2
We use an information theoretic framework to analyse data from the Galaxy Zoo 2 project and study if there are any statistically significant correlations between the presence of bars in spiral
A study on the statistical significance of mutual information between morphology of a galaxy and its large-scale environment
A non-zero mutual information between morphology of a galaxy and its large-scale environment is known to exist in SDSS upto a few tens of Mpc. It is important to test the statistical significance of
A New Perspective on the Large-scale Tidal Effect on the Galaxy Luminosity and Morphology
We study the mean tidal coherence of galaxy environments as a function of intrinsic luminosity determined by the absolute $r$-band magnitude. The tidal coherence of a galaxy environment is estimated
Can a conditioning on stellar mass explain the mutual information between morphology and environment?
Recent studies with SDSS have shown that a statistically significant non-zero mutual information between morphology and environment persists up to several tens of Mpc, which awaits an explanation.
Unravelling the cosmic web: an analysis of the Sloan Digital Sky Survey Data Release 14 with the local dimension
We analyze a volume limited galaxy sample from the SDSS to study the environments of galaxies on different length scales in the local Universe. We measure the local dimension of the SDSS galaxies on
On the origin of red spirals: does assembly bias play a role?
The formation of the red spirals is a puzzling issue in the standard picture of galaxy formation and evolution. Most studies attribute the colour of the red spirals to different environmental
Revisiting the Galaxy Shape and Spin Alignments with the Large-scale Tidal Field: An Effective Practical Model
An effective practical model with two characteristic parameters is presented to describe both of the tidally induced shape and spin alignments of the galactic halos with the large-scale tidal fields.
Large-Scale Environment Properties of Narrow-Line Seyfert 1 Galaxies at z < 0.4
The large-scale environment is believed to affect the evolution and intrinsic properties of galaxies. It offers a new perspective on narrow-line Seyfert 1 galaxies (NLS1) which have not been
Green valley galaxies in the cosmic web: internal versus environmental quenching
We analyze the SDSS data to classify the galaxies based on their colour using a fuzzy set-theoretic method and quantify their environments using the local dimension. We find that the fraction of the
Exploring galaxy colour in different environments of the cosmic web with SDSS
We analyze a set of volume limited samples from the SDSS to study the dependence of galaxy colour on different environments of the cosmic web. We measure the local dimension of galaxies to determine
...
...

References

SHOWING 1-10 OF 44 REFERENCES
COMBINED EFFECTS OF GALAXY INTERACTIONS AND LARGE-SCALE ENVIRONMENT ON GALAXY PROPERTIES
We inspect the coupled dependence of physical parameters of the Sloan Digital Sky Survey galaxies on the small-scale (distance to and morphology of the nearest neighbor galaxy) and the large-scale
Effects of large-scale environment on the assembly history of central galaxies
We examine whether large-scale environment affects the mass assembly history of their central galaxies. To facilitate this, we constructed dark matter halo merger trees from a cosmological N-body
Topology Analysis of the Sloan Digital Sky Survey. I. Scale and Luminosity Dependence
We measure the topology of volume-limited galaxy samples selected from a parent sample of 314,050 galaxies in the Sloan Digital Sky Survey (SDSS), which is now complete enough to describe the fully
Extremely Metal-Poor Galaxies: The Environment
We have analyzed bibliographical observational data and theoretical predictions, in order to probe the environment in which extremely metal-poor dwarf galaxies (XMPs) reside. We have assessed the HI
The Halo Occupation Distribution: Toward an Empirical Determination of the Relation between Galaxies and Mass
We investigate galaxy bias in the framework of the halo occupation distribution (HOD), which defines the bias of a population of galaxies by the conditional probability P(N|M) that a dark matter halo
Brightest group galaxies and the large-scale environment
We study the dependence of the properties of group galaxies on the surrounding large‐scale environment, using SDSS-DR7 data. Galaxies are ranked according to their luminosity within each group and
The environmental dependence of the chemical properties of star-forming galaxies
We use a 0.040 < z < 0.085 sample of 37 866 star-forming galaxies from the Fourth Data Release of the Sloan Digital Sky Survey to investigate the dependence of gas-phase chemical properties on
The dependence of galaxy group star formation rates and metallicities on large‐scale environment
We construct a sample of 75,863 star forming galaxies with robust metallicity and star formation rate measurements from the Sloan Digital Sky Survey Data Release 7 (SDSS DR7), from which we select a
COSMIC WEB AND STAR FORMATION ACTIVITY IN GALAXIES AT z ∼1
We investigate the role of the delineated cosmic web/filaments on star formation activity by exploring a sample of 425 narrow-band selected Hα emitters, as well as 2846 color-color selected
Galaxy Zoo: morphologies derived from visual inspection of galaxies from the Sloan Digital Sky Survey
In order to understand the formation and subsequent evolution of galaxies one must first distinguish between the two main morphological classes of massive systems: spirals and early-type systems.
...
...