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Related papers: A Study of Environmental Effects on Galaxy Spin Us…

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Leveraging the semi-analytic method, we compute halo spins for a substantial sample of HI-bearing galaxies observed in the Arecibo Legacy Fast Alfa Survey. Our statistical analysis reveals a correlation between halo spin and environment,…

Astrophysics of Galaxies · Physics 2025-03-10 Zichen Hua , Yu Rong , Huijie Hu

Most dynamical models of galaxies to date assume axisymmetry, which is not representative of a significant fraction of massive galaxies. We have built triaxial orbit-superposition Schwarzschild models of galaxies observed by the SAMI Galaxy…

We investigate the relationship between environment and the galaxy main sequence (the relationship between stellar mass and star formation rate) and also the relationship between environment and radio luminosity (P$_{\rm 1.4GHz}$) to shed…

Astrophysics of Galaxies · Physics 2020-10-21 S. M. Randriamampandry , M. Vaccari , K. M. Hess

We study the evolution of the galactic spin using data of high redshift galaxies in the fields of the Great Observatories Origins Deep Survey (GOODS). Through simple dynamical considerations we estimate the spin for the disc galaxies in our…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 Bernardo Cervantes-Sodi , X. Hernandez , Ho Seong Hwang , Changbom Park , Damien Le Borgne

We investigate the dependence of galaxy structure on a variety of galactic and environmental parameters for ~500,000 galaxies at z<0.2, taken from the Sloan Digital Sky Survey data release 7 (SDSS-DR7). We utilise bulge-to-total stellar…

We use a 0.040 < z < 0.085 sample of 37866 star-forming galaxies from the Fourth Data Release of the Sloan Digital Sky Survey to investigate the dependence of gas-phase chemical properties on stellar mass and environment. The local density,…

Astrophysics · Physics 2009-06-23 M. Mouhcine , I. K. Baldry , S. P. Bamford

Understanding the origin of galactic angular momentum and its connection to the cosmic web remains a pivotal issue in galaxy formation. Using kinematic data from the MaNGA survey, we investigate the alignment between the spin directions of…

Astrophysics of Galaxies · Physics 2025-07-09 Hao-da Wang , Peng Wang , Min Bao , Yanmei Chen , Xiao-xiao Tang , Youcai Zhang , Xi Kang , Quan Guo , Ming-Jie Sheng , Hao-Ran Yu

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

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…

Astrophysics of Galaxies · Physics 2015-12-23 Silvio Rodríguez , Nelson D. Padilla , Diego García Lambas

It has been observed that low redshift early-type galaxies can be separated into slow and fast rotators according to a proxy of specific stellar angular momentum, $\lambda_{R_e}$. Detailed studies of a handful of nearby clusters have shown…

Astrophysics of Galaxies · Physics 2019-10-14 Mark T. Graham , Michele Cappellari , Matthew A. Bershady , Niv Drory

Galaxies reside within dark matter halos, but their properties are influenced not only by their halo properties but also by the surrounding environment. We construct an interpretable neural network framework to characterize the surrounding…

Astrophysics of Galaxies · Physics 2025-10-01 Shun-ya S. Uchida , Suchetha Cooray , Atsushi J. Nishizawa , Tsutomu T. Takeuchi , Peter Behroozi

The distribution of galaxies on the mass-size plane as a function of redshift or environment is a powerful test for galaxy formation models. Here we use integral-field stellar kinematics to interpret the variation of the mass-size…

Cosmology and Nongalactic Astrophysics · Physics 2013-11-01 Michele Cappellari

Environment has long been known to impact the evolution of galaxies, but disentangling its effects from mass evolution requires careful analysis of statistically significant samples. By implementing advanced visualisation methods to test…

We study the link between the kinematic-morphology of galaxies, as inferred from integral-field stellar kinematics, and their relation between mass and star formation rate (SFR). Our sample consists of $\sim 3200$ galaxies with…

Astrophysics of Galaxies · Physics 2020-05-15 Bitao Wang , Michele Cappellari , Yingjie Peng , Mark Graham

Differences in the stellar populations of galaxies can be used to quantify the effect of environment on the star formation history. We target a sample of early-type galaxies from the Sloan Digital Sky Survey in two different environmental…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Ignacio Ferreras , Anna Pasquali , Ben Rogers

We use a sample of ~3000 galaxies from the MaNGA MPL-7 internal data release to study the alpha abundance distribution within low-redshift galaxies. We use the Lick index ratio Mgb/<Fe> as an alpha abundance indicator to study relationships…

Galaxy internal structure growth has long been accused of inhibiting star formation in disc galaxies. We investigate the potential physical connection between the growth of dispersion-supported stellar structures (e.g. classical bulges) and…

In this letter we present, for the first time, a study of star formation rate, gas fraction and galaxy morphology of a constrained simulation of the Milky Way (MW) and Andromeda (M31) galaxies, compared to other MW-mass galaxies. By…

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…

Astrophysics of Galaxies · Physics 2021-02-24 W. J. Pearson , L. Wang , S. Brough , B. W. Holwerda , A. M. Hopkins , J. Loveday

We investigate the environmental dependence of star formation and the morphology of galaxies in the local universe based on a volume-limited sample (0.030<z<0.065 and M_r<M_r^*+2) constructed from the data of the Sloan Digital Sky Survey.…