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We study the influence of the environment on the evolution of galaxies by investigating the luminosity function (LF) of galaxies of different morphological types and colours at different environmental density levels. We construct the LFs…

宇宙学与河外天体物理 · 物理学 2015-03-17 E. Tempel , E. Saar , L. J. Liivamägi , A. Tamm , J. Einasto , M. Einasto , V. Müller

We measure the effect of the environment on the intrinsic shapes of spiral and elliptical galaxies by finding the 3D shape distribution and dust extinction that fits better the projected shape of galaxies in different environment. We find…

星系天体物理 · 物理学 2015-12-23 Silvio Rodríguez , Nelson D. Padilla , Diego García Lambas

We analyse the relationships between galaxy morphology, colour, environment and stellar mass using data for over 100,000 objects from Galaxy Zoo, the largest sample of visually classified morphologies yet compiled. We conclusively show that…

We compare properties of galaxies in loose groups with those in field environment by analyzing the Nearby Optical Galaxy (NOG) catalog of galaxy systems. We consider as group galaxies, objects belonging to systems with at least five members…

天体物理学 · 物理学 2009-11-10 M. Girardi , F. Mardirossian , C. Marinoni , M. Mezzetti , E. Rigoni

We study the enviromental dependence and the morphological composition of the galaxy color-magnitude diagram at z~0.7, using a pilot sub-sample of ~2000 galaxies from the COSMOS surve, with I_AB<24, photometric redshift within 0.61<z<0.85…

The optical morphology of galaxies is strongly related to galactic environment, with the fraction of early-type galaxies increasing with local galaxy density. In this work we present the first analysis of the galaxy morphology-density…

We investigate the dependence of physical properties of galaxies brighter than M_r=-18.0 in the SDSS on environment, as measured by local density using an adaptive smoothing kernel. We find that variations of galaxy properties with…

天体物理学 · 物理学 2019-08-16 Changbom Park , Yun-Young Choi , Michael S. Vogeley , J. Richard Gott , Michael R. Blanton

We study morphology and luminosity segregation of galaxies in loose groups. We analyze the two catalogs of groups which have been identified in the Nearby Optical Galaxy (NOG) sample, by means of hierarchical and percolation…

天体物理学 · 物理学 2009-11-07 M. Girardi , E. Rigoni , F. Mardirossian , M. Mezzetti

We analyze the environmental dependence of galaxy morphology and colour with two-point clustering statistics, using data from the Galaxy Zoo, the largest sample of visually classified morphologies yet compiled, extracted from the Sloan…

We use \sim 2000 galaxies belonging to different environments to show how the fractions of different galaxy morphological types vary with global environment and as function of galaxy stellar mass at low redshift. Considering mass limited…

宇宙学与河外天体物理 · 物理学 2015-05-30 Rosa Calvi , Bianca M. Poggianti , Giovanni Fasano , Benedetta Vulcani

The observed properties of galaxies are strongly dependent on both their total stellar mass and their morphology. Furthermore, the environment is known to play a strong role in shaping them. The galaxy population in the local universe that…

While the star formation rates and morphologies of galaxies have long been known to correlate with their local environment, the process by which these correlations are generated is not well understood. Galaxy groups are thought to play an…

We study the environmental dependence of color, stellar mass, and morphology by comparing galaxies in a forming cluster to those in the field at z = 1:6 with Hubble Space Telescope near-infrared imaging in the CANDELS/UDS field. We quantify…

We have determined the morphological types of 2295 galaxies from the ESO Nearby Abell Cluster Survey (ENACS) from CCD images made with the Dutch telescope on La Silla. The reliability of our classification appears to be quite comparable to…

天体物理学 · 物理学 2009-11-11 T. Thomas , P. Katgert

To understand the role of the environment in galaxy formation, evolution, and present-day properties, it is essential to study the multi-frequency behavior of different galaxy populations under various environmental conditions. We…

星系天体物理 · 物理学 2016-05-04 A. Poudel , P. Heinämäki , P. Nurmi , P. Teerikorpi , E. Tempel , H. Lietzen , M. Einasto

We study the environment in which a galaxy lies (i.e. field or group) and its connection with the morphology of the galaxy. This is done by examining the distribution of parametric and non-parametric statistics across the star-formation…

星系天体物理 · 物理学 2021-02-24 W. J. Pearson , L. Wang , S. Brough , B. W. Holwerda , A. M. Hopkins , J. Loveday

How does the clustering of galaxies depend on their inner properties like morphological type and luminosity? We address this question in the mathematical framework of marked point processes and clarify the notion of luminosity and…

天体物理学 · 物理学 2009-10-31 Claus Beisbart , Martin Kerscher

From the Sloan Digital Sky Survey (SDSS) Data Release 5 (DR5), we extract a sample of 4594 galaxies at redshifts 0.02<z<0.03, complete down to a stellar mass of M=10^10 Msol. We quantify their structure (Sersic index), morphology (Sersic…

天体物理学 · 物理学 2009-11-13 Arjen van der Wel

In this work, we investigate whether the location of galaxies within the large-scale structures (LSS) of the Universe affects their stellar mass ($M_\star$) and morphology. To this end, we attempt to disentangle the effects of local and…

The morphological properties of galaxies between $21 {\rm~mag} < I < 25 {\rm~mag}$ in the {\em Hubble Deep Field} are investigated using a quantitative classification system based on measurements of the central concentration and asymmetry…

天体物理学 · 物理学 2016-06-08 R. G. Abraham , N. R. Tanvir , B. X. Santiago , R. S. Ellis , K. Glazebrook , S. van den Bergh
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