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相关论文: Structure and large scale environment of galaxy pa…

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We explore properties of close galaxy pairs and merging systems selected from the SDSS-DR4 in different environments with the aim to assess the relative importance of the role of interactions over global environmental processes. For this…

宇宙学与河外天体物理 · 物理学 2015-05-13 Josefa Perez , Patricia Tissera , Nelson Padilla , M. Sol Alonso , Diego G. Lambas , .

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 the geometry of their embedding…

星系天体物理 · 物理学 2020-09-30 Biswajit Pandey , Suman Sarkar

In a hierarchical universe, mergers may be an important mechanism not only in increasing the mass of galaxies but also in driving the color and morphological evolution of galaxies. We use a large sample of ~1000 simulated galaxies of…

宇宙学与河外天体物理 · 物理学 2015-06-03 Stephanie Tonnesen , Renyue Cen

We use a sample of close galaxy pairs selected from the Sloan Digital Sky Survey Data Release 4 (SDSS DR4) to investigate in what environments galaxy mergers occur and how the results of these mergers depend on differences in local galaxy…

宇宙学与河外天体物理 · 物理学 2015-05-18 Sara L. Ellison , David R. Patton , Luc Simard , Alan W. McConnachie , Ivan K. Baldry , J. Trevor Mendel

Using a sample of 19,464 galaxies drawn from the DEEP2 Galaxy Redshift Survey, we study the relationship between galaxy color and environment at 0.4 < z < 1.35. We find that the fraction of galaxies on the red sequence depends strongly on…

With the aim to assess the role of dense environments in galaxy interactions, properties we present an analysis of close galaxy pairs in groups and clusters, obtained from the Sloan Digital Sky Survey Data Release 7 (SDSS-DR7). We…

宇宙学与河外天体物理 · 物理学 2015-06-03 Sol Alonso , Valeria Mesa , Nelson Padilla , Diego G. Lambas

We analyze the galaxy pairs in a volume limited sample ($M_r \leq -21$) from the SDSS to study the effects of galaxy interactions on the star formation rate and colour of galaxies in different environments. We study the star formation rate…

星系天体物理 · 物理学 2021-08-13 Apashanka Das , Biswajit Pandey , Suman Sarkar , Arunima Dutta

We present a study characterizing the environments of galaxies in the redshift range of 0.4 < z < 1 based on data from the POWIR near infrared imaging and DEEP2 spectroscopic redshift surveys, down to a stellar mass of log M* = 10.25 M_sun.…

We use photometric redshifts to analyse the effect of local environment on galaxy colours at redshifts z < 0.63 in the SDSS data release 6. We construct mock SDSS-DR6 catalogues using semi-analytic galaxies to study possible systematic…

天体物理学 · 物理学 2009-11-13 Ana Laura O'Mill , Nelson Padilla , Diego Garcia Lambas

We study the relationship between galaxy luminosity, color, and environment in a cosmological simulation of galaxy formation. We compare the predicted relationship with that found for SDSS galaxies and find that the model successfully…

The major interactions are known to trigger star formation in galaxies and alter their colour. We study the major interactions in filaments and sheets using the SDSS data to understand the influence of large-scale environments on the galaxy…

星系天体物理 · 物理学 2023-02-01 Apashanka Das , Biswajit Pandey , Suman Sarkar

The properties of galaxies are strongly correlated with their environment, with red galaxies dominating galaxy clusters and blue galaxies dominating the general field. However, not all field galaxies are young: studies of the colors, line…

天体物理学 · 物理学 2007-05-23 Pieter van Dokkum , Ryan Quadri

Aims. This study aims to explore the relationship between the physical properties of different galaxy subclasses and their environment based on the analysis of 31 631 VIMOS Public Extragalactic Redshift Survey (VIPERS) galaxies observed at…

We have assembled a large, high quality catalogue of galaxy colours from the Sloan Digital Sky Survey Data Release 7, and have identified 21,347 galaxies in pairs spanning a range of projected separations (r_p < 80 h_{70}^{-1} kpc),…

宇宙学与河外天体物理 · 物理学 2015-05-20 David R. Patton , Sara L. Ellison , Luc Simard , Alan W. McConnachie , J. Trevor Mendel

Galaxy populations are known to exhibit a strong colour bimodality, corresponding to blue star-forming and red quiescent subpopulations. The relative abundance of the two populations has been found to vary with stellar mass and environment.…

The properties of isolated galaxies are mainly driven by intrinsic evolution and not by the external influence of their environments. Therefore the isolated galaxy sample may be considered as a reference sample to study different…

星系天体物理 · 物理学 2015-06-17 O. Melnyk , S. Mitronova , V. Karachentseva

We discuss the environmental dependence of galaxy evolution based on deep panoramic imaging of two distant clusters taken with Suprime-Cam as part of the PISCES project. By combining with the SDSS data as a local counterpart for comparison,…

The main goal of this work is to investigate the influence of environment at different scales on the properties of galaxies in systems with a low number of members. To this end we used a catalogue of small galaxy systems comprising compact…

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