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Related papers: Environment and mass dependencies of galactic $\la…

200 papers

We investigate the impact of filament and void environments on galaxies, looking for residual effects beyond the known relations with environment density. We quantified the host environment of galaxies as the distance to the spine of the…

Astrophysics of Galaxies · Physics 2017-03-29 Teet Kuutma , Antti Tamm , Elmo Tempel

We review recent results on the dependence of various galaxy properties on environment at low redshift. As environmental indicators, we use group mass, group-centric radius, and the distinction between centrals and satellites; examined…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Simone M. Weinmann , Frank C. van den Bosch , Anna Pasquali

The stellar mass and metallicity are among the fundamental parameters of galaxies. An understanding of the interplay between those properties as well as their environmental dependence will give us a general picture of the physics and…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 M. A. Lara-Lopez , A. M. Hopkins , A. Robotham , M. S. Owers , M. Colless , S. Brough , P. Norberg , O. Steele , E. N. Taylor , D. Thomas

We present a highly simplified model of the dynamical structure of a disk galaxy where only two parmeters fully determine the solution, mass and angular momentum. We show through simple physical scalings that once the mass has been fixed,…

Astrophysics · Physics 2009-09-29 X. Hernandez , B. Cervantes-Sodi

In the standard disk galaxy formation model, the sizes of galactic disks are tightly related to the spin parameters $\lambda$ of their dark matter haloes. The model has been wildly adopted by various semi-analytic galaxy formation models…

Astrophysics of Galaxies · Physics 2023-03-13 Hang Yang , Liang Gao , Carlos S. Frenk , Robert J. J. Grand , Qi Guo , Shihong Liao , Shi Shao

We present a detailed investigation into the effects of galaxy environment on their star formation rates (SFR) using galaxies observed in the Galaxy and Mass Assembly Survey (GAMA). We use three independent volume-limited samples of…

Using N-body simulations and galaxy formation models, we study the galaxy stellar mass correlation and the two-point auto-correlation. The simulations are run with cosmological parameters from the WMAP first, third and seven year results,…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 X. Kang , M. Li , W. P. Lin , P. J. Elahi

Hydrodynamical simulations of galaxy formation in spatially flat Cold Dark Matter (CDM) cosmologies with and without a cosmological constant (Lambda) are described. A simple star formation algorithm is employed and radiative cooling is…

Astrophysics · Physics 2009-10-31 Vincent Eke , George Efstathiou , Lisa Wright

The galaxy size-luminosity and size-stellar mass relations are important constraints on the galactic baryon cycle of gas accretion, star formation, and feedback. There are conflicting claims in the literature regarding how environment…

Astrophysics of Galaxies · Physics 2026-01-14 Li-Wen Liao , Andrew Cooper

In the linear theory, the galaxy angular momentum vectors which originate from the initial tidal interactions with surrounding matter distribution intrinsically develop perpendicular alignments with the directions of maximum matter…

Cosmology and Nongalactic Astrophysics · Physics 2023-08-02 Jounghun Lee , Jun-Sung Moon

We present a maximum-likelihood analysis of galaxy-galaxy lensing effects in galaxy clusters and in the field. The aim is to determine the accuracy and robustness of constraints that can be obtained on galaxy halo properties in both…

Astrophysics · Physics 2009-11-10 Marceau Limousin , Jean Paul Kneib , Priyamvada Natarajan

Large-scale structures (LSS) out to z $< 3.0$ are measured in the Cosmic Evolution Survey (COSMOS) using extremely accurate photometric redshifts (photoz). The Ks-band selected sample (from Ultra-Vista) is comprised of 155,954 galaxies. Two…

We investigate the environmental dependence of galaxy properties at $z\sim2.5$ using the Ly$\alpha$ Tomography IMACS Survey (LATIS), which provides high-resolution three-dimensional maps of intergalactic medium (IGM) overdensity via…

We present a clustering analysis of the BOSS DR12 CMASS galaxy sample, combining measurements of the galaxy two-point correlation function and density-split clustering down to a scale of $1\,h^{-1}{\rm Mpc}$. Our theoretical framework is…

We investigate the impact of environment on the internal mass distribution of galaxies using the Middle Ages Galaxy Properties with Integral field spectroscopy (MAGPI) survey. We use 2D resolved stellar kinematics to construct Jeans…

We build a volume-limited sample of galaxies derived from the SDSS-DR7 to characterize several physical properties of the dark matter halos where LSB galaxies reside. Using an observational proxy for the assembly time, we found that LSB…

Astrophysics of Galaxies · Physics 2019-10-11 Luis Enrique Pérez-Montaño , Bernardo Cervantes Sodi

We combine constraints on the galaxy-dark matter connection with structural and dynamical scaling relations to investigate the angular momentum content of disc galaxies. For haloes with masses in the interval 10^{11.3} < M_vir/M_sun <…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Aaron A. Dutton , Frank C. van den Bosch

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…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Rosa Calvi , Bianca M. Poggianti , Giovanni Fasano , Benedetta Vulcani

Late-type low surface brightness galaxies (LSBs) are faint disk galaxies with central maximum stellar surface densities below 100 Msun/pc^2. The currently favored scenario for their origin is that LSBs have formed in fast-rotating halos…

Astrophysics of Galaxies · Physics 2013-06-05 Ji-hoon Kim , Jounghun Lee