English
Related papers

Related papers: Evaluating hydrodynamical simulations with green v…

200 papers

We use SDSS+\textit{GALEX}+Galaxy Zoo data to study the quenching of star formation in low-redshift galaxies. We show that the green valley between the blue cloud of star-forming galaxies and the red sequence of quiescent galaxies in the…

We obtained GALEX FUV, NUV, and Spitzer/IRAC 3.6$\mu$m photometry for > 2000 galaxies, available for 90% of the S4G sample. We find a very tight "GALEX Blue Sequence (GBS)" in the (FUV-NUV) versus (NUV-[3.6]) color-color diagram which is…

We present a measurement of the spatial clustering of rest-frame UV-selected massive galaxies at $0.5\le z \le 2.5$ in the COSMOS/UltraVISTA field. Considering four separate redshift bins with $\Delta z=0.5$, we construct three galaxy…

Astrophysics of Galaxies · Physics 2019-10-02 Xiaozhi Lin , Guanwen Fang , Zhen-Yi Cai , Tao Wang , Lulu Fan , Xu Kong

By combining newly obtained deep GBT 21cm observations with optical spectroscopic data, we present an analysis of the gas content of BreakBRD galaxies, a population denoted by their blue star-forming centers and red quenched disks that do…

Astrophysics of Galaxies · Physics 2024-08-08 David V. Stark , Sarah Tuttle , Stephanie Tonnesen , Zachary Tu

In this Letter, we analyse the radial UV-optical color distributions in a sample of low redshift green valley (GV) galaxies, with the Galaxy Evolution Explorer (GALEX)+Sloan Digital Sky Survey (SDSS) images, to investigate how the residual…

Astrophysics of Galaxies · Physics 2015-06-22 Zhizheng Pan , Jinrong Li , Weipeng Lin , Jing Wang , Xu Kong

The recently inferred variations in the stellar initial mass function (IMF) among local high-mass early-type galaxies may require a reinterpretation of observations of galaxy populations and may have important consequences for the…

Astrophysics of Galaxies · Physics 2018-07-17 Christopher Barber , Robert A. Crain , Joop Schaye

Galaxy clusters offer powerful laboratories for studying galaxy evolution in dense environments. In this context, the CLONE, Constrained LOcal and Nesting Environment, project provides a zoom-in hydrodynamical simulation of the Virgo…

Astrophysics of Galaxies · Physics 2026-03-26 Jenny G. Sorce , Sean L. McGee , Yohan Dubois , Jérémy Blaizot , Alexander Knebe , Gustavo Yepes

Current cosmological simulations rely on active galactic nuclei (AGN) feedback to quench star formation and match observed stellar mass distributions, but models for AGN feedback are poorly constrained. The circumgalactic medium (CGM)…

Cosmological hydrodynamical simulations provide valuable insights on galaxy evolution when coupled with observational data. Comparisons with real galaxies are typically performed via scaling relations of the observables. Here we follow an…

Cosmology and Nongalactic Astrophysics · Physics 2025-04-08 Z. Sharbaf , I. Ferreras , A. Negri , J. Angthopo , C. Dalla Vecchia , O. Lahav , R. S. Somerville

We measure and analyze the inflows and outflows of mass, energy, and metals through the interstellar medium (ISM) and circumgalactic medium (CGM) of galaxies in the IllustrisTNG100 simulations. We identify the dominant feedback mechanism in…

Astrophysics of Galaxies · Physics 2026-03-10 Yossi Oren , Viraj Pandya , Rachel S. Somerville , Shy Genel , Osase Omoruyi , Amiel Sternberg

We use the IllustrisTNG cosmological hydrodynamical simulations to investigate how the specific star formation rates (sSFRs) of massive galaxies $(M_* > 10^{10} M_\odot)$ depend on the distance to their closest companions. We estimate sSFR…

We investigate the influence of active galactic nucleus (AGN) feedback on the galaxy cold gas content and its connection to galaxy quenching in three hydrodynamical simulations of Illustris, IllustrisTNG and SIMBA. By comparing to the…

Astrophysics of Galaxies · Physics 2023-01-04 Wenlin Ma , Kexin Liu , Hong Guo , Weiguang Cui , Michael G. Jones , Jing Wang , Le Zhang , Romeel Dave

We analyse cosmological hydrodynamical simulations of galaxy clusters to study the X-ray scaling relations between total masses and observable quantities such as X-ray luminosity, gas mass, X-ray temperature, and $Y_{X}$. Three sets of…

Cosmology and Nongalactic Astrophysics · Physics 2018-01-26 N. Truong , E. Rasia , P. Mazzotta , S. Planelles , V. Biffi , D. Fabjan , A. M. Beck , S. Borgani , K. Dolag , M. Gaspari , G. L. Granato , G. Murante , C. Ragone-Figueroa , L. K. Steinborn

It is now possible for hydrodynamical simulations to reproduce a representative galaxy population. Accordingly, it is timely to assess critically some of the assumptions of traditional semi-analytic galaxy formation models. We use the Eagle…

We study environmental quenching in the Eagle}/C-Eagle cosmological hydrodynamic simulations over the last 11 Gyr (i.e. $z=0-2$). The simulations are compared with observations from the SAMI Galaxy Survey at $z=0$. We focus on satellite…

In this work, we present results for the photometric and clustering properties of galaxies that arise in a LambdaCDM hydrodynamical simulation of the local universe. The present-day distribution of matter was constructed to match the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 S. E. Nuza , K. Dolag , A. Saro

Using the TNG100 (100 Mpc)^3 simulation of the IllustrisTNG project, we demonstrate a strong connection between the onset of star formation quenching and the stellar size of galaxies. We do so by tracking the evolutionary history of…

Astrophysics of Galaxies · Physics 2021-02-10 Anshu Gupta , Kim-Vy Tran , Annalisa Pillepich , Tiantian Yuan , Anishya Harshan , Vicente Rodriguez-Gomez , Shy Genel

We use the IllustrisTNG100 hydrodynamical simulation to study the dependence of the galaxy two-point correlation function on a broad range of secondary subhalo and galactic properties. We construct galaxy mock catalogues adopting a standard…

Astrophysics of Galaxies · Physics 2021-11-04 Ginevra Favole , Antonio D. Montero-Dorta , M. Celeste Artale , Sergio Contreras , Idit Zehavi , Xiaoju Xu

We analyze the stellar growth of Brightest Cluster Galaxies (BCGs) produced by cosmological zoom-in hydrodynamical simulations of the formation of massive galaxy clusters. The evolution of the stellar mass content is studied considering…

Astrophysics of Galaxies · Physics 2018-07-18 C. Ragone-Figueroa , G. L. Granato , M. E. Ferraro , G. Murante , V. Biffi , S. Borgani , S. Planelles , E. Rasia

We study the properties of black holes and their host galaxies across cosmic time in the Illustris simulation. Illustris is a large scale cosmological hydrodynamical simulation which resolves a (106.5 Mpc)^3 volume with more than 12 billion…

Astrophysics of Galaxies · Physics 2015-07-15 Debora Sijacki , Mark Vogelsberger , Shy Genel , Volker Springel , Paul Torrey , Greg Snyder , Dylan Nelson , Lars Hernquist
‹ Prev 1 3 4 5 6 7 10 Next ›