Results 31 to 40 of about 350 (188)

There was a star-forming galaxy that was quenched

, 2022
Cluster galaxies are subject to a whole range of processes and interactions that dramatically change their properties. To shed light on these issues, we analyze the most homogeneous and complete local cluster galaxy survey to date: WINGS/OmegaWINGS, and use stellar population synthesis techniques to obtain properties such as stellar mass, stellar ages,
Pérez-Millán, David, Fritz, Jacopo, González-Lopezlira, Rosa A.   +2 more
openaire   +2 more sources

From Halos to Galaxies. VII. The Connections between Stellar Mass Growth History, Quenching History, and Halo Assembly History for Central Galaxies

The Astrophysical Journal, 2023
The assembly of galaxies over cosmic time is tightly connected to the assembly of their host dark matter halos. We investigate the stellar mass growth history and the chemical enrichment history of central galaxies in the Sloan Digital Sky Survey Mapping
Cheqiu Lyu, Yingjie Peng, Yipeng Jing, Xiaohu Yang, Luis C. Ho, Alvio Renzini, Bitao Wang, Kai Wang, Bingxiao Xu, Dingyi Zhao, Jing Dou, Qiusheng Gu, Roberto Maiolino, Filippo Mannucci, Feng Yuan   +14 more
doaj   +1 more source

The Roles of Mass and Environment in the Quenching of Galaxies. II. [PDF]

The Astrophysical Journal, 2020
Abstract We take advantage of an analytic model of galaxy formation coupled to the merger tree of an N-body simulation to study the roles of environment and stellar mass in the quenching of galaxies. The model has been originally set in order to provide the observed evolution of the stellar mass function as well as reasonable predictions
E. Contini, Q. Gu, X. Ge, J. Rhee, S. K. Yi, X. Kang   +5 more
openaire   +2 more sources

The imprint of cosmic web quenching on central galaxies

Monthly Notices of the Royal Astronomical Society, 2021
ABSTRACT We investigate how cosmic web environment impacts the average properties of central galaxies in the Sloan Digital Sky Survey (SDSS). We analyse how the average specific star formation rate, stellar age, metallicity, and element abundance ratio [α/Fe] of SDSS central galaxies depend on distance from the cosmic web nodes, walls ...
N Winkel, A Pasquali, K Kraljic, R Smith, A Gallazzi, T M Jackson   +5 more
openaire   +4 more sources

Identifying and Distinguishing Quenching Galaxies with Spatially Resolved Star Formation in TNG50

The Astrophysical Journal
Using the TNG50 simulation, we determine observationally motivated metrics that can distinguish quenching galaxies from star-forming galaxies for M _* ≥ 10 ^9.5 M _⊙ , based on the spatial distribution of their stellar populations. Quenching galaxies are
Cameron Lawlor-Forsyth, Michael L. Balogh, Elizaveta Sazonova, Cameron R. Morgan, Sean L. McGee, Gregory H. Rudnick   +5 more
doaj   +1 more source

A hydrodynamical CLONE of the Virgo cluster

Astronomy & Astrophysics
Galaxy clusters offer powerful laboratories for studying galaxy evolution in dense environments. In this context, the Constrained LOcal and Nesting Environment (CLONE) project provides a zoom-in hydrodynamical simulation of the Virgo cluster, including ...
Sorce Jenny G., McGee Sean L., Dubois Yohan, Blaizot Jérémy, Knebe Alexander, Yepes Gustavo   +5 more
doaj   +1 more source

A Proof‐of‐Concept Assessment of a Novel Wearable Eyelid Muscle Device: A Pre‐Clinical Animal Cadaver Study for Eyelid Closure Restoration

Advanced Robotics Research, EarlyView.
This article introduces a soft wearable eyelid sling device incorporating a hydraulic soft artificial muscle (SAM) for achieving complete closure of an eyelid. The SAM is driven by a cam mechanism that provides a displacement profile closely matched with those of a healthy eyelid.
Patrick Pruscino, Phuoc Thien Phan, James Davies, Bibhu Sharma, Tianruo Guo, Chi Cong Nguyen, Nigel H. Lovell, Thanh Nho Do   +7 more
wiley   +1 more source

A STELLAR MASS THRESHOLD FOR QUENCHING OF FIELD GALAXIES [PDF]

The Astrophysical Journal, 2012
We demonstrate that dwarf galaxies (10^7 < M_stellar < 10^9 Msun) with no active star formation are extremely rare (<0.06%) in the field. Our sample is based on the NASA-Sloan Atlas which is a re-analysis of the Sloan Digital Sky Survey Data Release 8.
Geha, M., Blanton, M., Yan, R., Tinker, J.   +3 more
openaire   +2 more sources

The impact of quenching on galaxy profiles in the simba simulation [PDF]

Monthly Notices of the Royal Astronomical Society, 2020
ABSTRACT We study specific star formation rate (sSFR) and gas profiles of star-forming (SF) and green valley (GV) galaxies in the simba cosmological hydrodynamic simulation. SF galaxy half-light radii (Rhalf) at z = 0 and their evolution (∝(1 + z)−0.78) agree with observations.
Sarah Appleby, Romeel Davé, Katarina Kraljic, Daniel Anglés-Alcázar, Desika Narayanan   +4 more
openaire   +4 more sources

Solid Harmonic Wavelet Bispectrum for Image Analysis

Advanced Science, EarlyView.
The Solid Harmonic Wavelet Bispectrum (SHWB), a rotation‐ and translation‐invariant descriptor that captures higher‐order (phase) correlations in signals, is introduced. Combining wavelet scattering, bispectral analysis, and group theory, SHWB achieves interpretable, data‐efficient representations and demonstrates competitive performance across texture,
Alex Brown, Mathilda Avirett‐Mackenzie, Carolin Villforth, Georgios Exarchakis   +3 more
wiley   +1 more source