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相关论文: The merger fraction of post-starburst galaxies in …

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Post-starburst galaxies (PSBs) are transition galaxies showing evidence of recent rapid star formation quenching. To understand the role of galaxy mergers in triggering quenching, we investigate the incidence of PSBs and resolved PSB…

(Abridged) Mechanisms for quenching star formation in galaxies remain hotly debated, with galaxy mergers an oft-proposed pathway. In Ellison et al. (2022) we tested this scenario by quantifying the fraction of recently and rapidly quenched…

星系天体物理 · 物理学 2024-12-25 Sara L. Ellison , Leonardo Ferreira , Vivienne Wild , Scott Wilkinson , Kate Rowlands , David R. Patton

Post-starburst galaxies (PSBs) belong to a short-lived transition population between star-forming (SF) and quiescent galaxies. Deciphering their heavily discussed evolutionary pathways is paramount to understanding galaxy evolution. We aim…

星系天体物理 · 物理学 2021-08-11 Marcel Lotz , Klaus Dolag , Rhea-Silvia Remus , Andreas Burkert

Post-starburst (PSB) galaxies, having recently experienced a starburst followed by rapid quenching, are excellent laboratories to probe physical mechanisms that drive starbursts and shutting down of star formation. Integral-field…

We present a new morphological indicator designed for automated recognition of galaxies with faint asymmetric tidal features suggestive of an ongoing or past merger. We use this new indicator, together with preexisting diagnostics of galaxy…

星系天体物理 · 物理学 2016-01-27 M. M. Pawlik , V. Wild , C. J. Walcher , P. H. Johansson , C. Villforth , K. Rowlands , J. Mendez-Abreu , T. Hewlett

Galaxies that abruptly interrupt their star formation in < 1.5 Gyr present recognizable features in their spectra (no emission and Hd in absorption) and are called post starburst (PSB) galaxies. By studying their stellar population…

Post-StarBurst (PSB) galaxies are galaxies that have undergone a large burst of star formation followed by rapid quenching. Understanding their properties as a population can help us better understand how galaxies evolve to quiescence. This…

The quenching mechanisms of galaxies are not yet fully understood, but post-starburst galaxies provide one explanation for the rapid transition between star-forming and quiescent galaxies. At low redshift, it is generally thought that the…

星系天体物理 · 物理学 2025-08-15 Emma W. Nielsen , Charles L. Steinhardt , Mathieux Harper , Conor McPartland , Aidan Sedgewick

Major mergers and interactions between gas-rich galaxies with comparable masses are thought to be the main triggers of starburst. In this work, we study, for a large stellar mass range, the interaction rate of the starburst galaxies in the…

星系天体物理 · 物理学 2015-06-22 Wentao Luo , Xiaohu Yang , Youcai Zhang

We investigate the quenching of galaxies using a mock observational lightcone generated from the Semi-Analytic Model (SAM) L-Galaxies, closely matched to observations from the UKIDSS Ultra Deep Survey (UDS). The sample is used to study…

We study the shape and evolution of the star formation main sequence in three independently developed semi-analytic models of galaxy formation. We focus, in particular, on the characterization of the model galaxies that are significantly…

星系天体物理 · 物理学 2019-03-15 Lan Wang , Gabriella De Lucia , Fabio Fontanot , Michaela Hirschmann

Post-starburst galaxies (PSBs) have recently and rapidly quenched their star-formation, thus they are an important way to understand how galaxies transition from star-forming late-types to quiescent early-types. The recent discovery of…

How do galaxies transform from blue, star-forming spirals to red, quiescent early-type galaxies? To answer this question, we analyzed a set of 26 gas-rich, shocked post-starburst galaxies with Hubble Space Telescope (HST) imaging in B, I,…

We present a study of the size--mass relation for local post-starburst (PSB) galaxies at $z\lesssim0.33$ selected from the Sloan Digital Sky Survey Data Release 8. We find that PSB galaxies with stellar mass ($M_*$) at…

星系天体物理 · 物理学 2022-07-19 Xinkai Chen , Zesen Lin , Xu Kong , Zhixiong Liang , Guangwen Chen , Hong-Xin Zhang

Galaxy mergers are known to trigger bursts of central star formation, which should therefore lead to stellar mass growth in their inner regions. However, observational measurements of this `burst mass fraction' are scant. Here, we assemble…

星系天体物理 · 物理学 2026-04-27 Sara L. Ellison , Leonardo Ferreira

Starburst (SB) galaxies are a rare population of galaxies with star formation rates (SFRs) greatly exceeding those of the majority of star-forming galaxies with similar stellar mass. It is unclear whether these bursts are the result of…

星系天体物理 · 物理学 2023-09-19 Elia Cenci , Robert Feldmann , Jindra Gensior , Jorge Moreno , Luigi Bassini , Mauro Bernardini

Post-starburst galaxies (PSBs) are a population of rapidly quenched galaxies that have experienced a recent starburst. Several aspects of the origin and nature of PSBs are currently debated. For example, some PSBs unexpectedly host…

We use numerical simulation to investigate the triggering of starbursts in merging disk galaxies. The properties of the merger-driven starbursts are sensitive to the structure of the progenitor galaxies; specifically, to the amount of…

天体物理学 · 物理学 2007-05-23 Chris Mihos , Lars Hernquist

Galaxy mergers are traditionally one of the favoured mechanisms for quenching star formation. To test this paradigm in the context of modern cosmological simulations, we use the IllustrisTNG simulation to investigate the impact of…

星系天体物理 · 物理学 2021-04-21 Salvatore Quai , Maan H. Hani , Sara L. Ellison , David R. Patton , Joanna Woo
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