The Colors and Sizes of Recently Quenched Galaxies: A Result of Compact Starburst before Quenching [PDF]
The Astrophysical Journal, 2020 Abstract We analyze the colors and sizes of 32 quiescent (UVJ-selected) galaxies with strong Balmer absorption (EW(Hδ) ≥ 4 Å) at z ∼ 0.8 drawn from DR2 of the LEGA-C survey to test the hypothesis that these galaxies experienced compact, central starbursts before quenching.
Po-Feng 柏鋒 Wu 吳 +13 more
openaire +6 more sources
Relight the Candle: What Happens to High-redshift Massive Quenched Galaxies
The Astrophysical JournalA puzzling population of extremely massive quiescent galaxies at redshifts beyond z = 3 has recently been revealed by JWST and the Atacama Large Millimeter/submillimeter Array, some of them with stellar ages that show their quenching times to be as high ...
Rhea-Silvia Remus, Lucas C. Kimmig
doaj +1 more source
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 +3 more
wiley +1 more source
Widespread Rapid Quenching at Cosmic Noon Revealed by JWST Deep Spectroscopy
The Astrophysical JournalMassive quiescent galaxies in the young Universe are expected to be quenched rapidly, but it is unclear whether they all experience starbursts before quenching and what physical mechanism drives rapid quenching. We study 14 massive quiescent galaxies ( $\
Minjung Park +18 more
doaj +1 more source
The Geography of Success: A Spatial Analysis of Export Intensity in the Italian Wine Industry
Agribusiness, EarlyView.ABSTRACT This paper investigates the paradox of how Italy's fragmented, SME‐dominated wine industry achieves global export success. Moving beyond purely firm‐centric explanations, we test whether export intensity is spatially dependent, clustering geographically in regional ecosystems.
Nicolas Depetris Chauvin, Jonas Di Vita
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. +3 more
openaire +2 more sources
The LEGA-C galaxy survey: Multiple quenching channels for quiescent galaxies at z ∼ 1
Astronomy & AstrophysicsAims. We analyzed the sizes and star formation histories (SFHs) of 2908 galaxies with M★ ≥ 109 M⊙ at 0.6
Nersesian Angelos +11 more
doaj +1 more source
Investigation on tunnel stability considering pipe‐roof support with transparent soil technology
Deep Underground Science and Engineering, EarlyView.This study integrates transparent soil technology, 3D reconstruction and numerical simulation to captures the full‐field deformation of shield tunnel instability. Results demonstrate that pipe‐roof support enhances stability via the “soil‐arching barrier effect,” effectively restraining failure wedge development by extending stress transfer paths ...
Zhi Jia +4 more
wiley +1 more source
High-velocity outflows persist up to 1 Gyr after a starburst in recently quenched galaxies at z > 1 [PDF]
High-velocity outflows are ubiquitous in star-forming galaxies at cosmic noon, but are not as common in passive galaxies at the same epoch. Using optical spectra of galaxies selected from the UKIDSS Ultra Deep Survey at z > 1, we perform a stacking ...
Almaini, Omar +6 more
core +1 more source
Multiple mechanisms quench passive spiral galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2017 15 pages, 7 figures, accepted for publication in ...
Fraser-McKelvie, Amelia +4 more
openaire +5 more sources