Strangulation as the primary mechanism for shutting down star formation in galaxies

  title={Strangulation as the primary mechanism for shutting down star formation in galaxies},
  author={Y. Peng and Roberto Maiolino and R. K. Cochrane},
Local galaxies are broadly divided into two main classes, star-forming (gas-rich) and quiescent (passive and gas-poor). The primary mechanism responsible for quenching star formation in galaxies and transforming them into quiescent and passive systems is still unclear. Sudden removal of gas through outflows or stripping is one of the mechanisms often proposed. An alternative mechanism is so-called “strangulation”, in which the supply of cold gas to the galaxy is halted. Here we report an… 
Both starvation and outflows drive galaxy quenching
Star-forming galaxies can in principle be transformed into passive systems by a multitude of processes that quench star formation, such as the halting of gas accretion (starvation) or the rapid
Star Formation Quenching Timescale of Central Galaxies in a Hierarchical Universe
Central galaxies make up the majority of the galaxy population, including the majority of the quiescent population at . Thus, the mechanism(s) responsible for quenching central galaxies play a
The decline of star formation in massive low-redshift galaxies, often referred to as “quenching,” has been attributed to a variety of factors. Some proposals suggest that erupting active galactic
Star formation quenching in galaxies
The cosmic star formation rate density is peaked at $z\sim2$ and declines continuously since then, implying that the quenching of star formation has been the dominating process in galaxy evolution in
Bursting and quenching in satellite galaxies
The difference in stellar metallicity between red and blue galaxies with the same mass constrains the time-scale over which red galaxies ceased to form stars. Here we investigate this constraint
Quenching as a Contest between Galaxy Halos and Their Central Black Holes
Existing models of galaxy formation have not yet explained striking correlations between structure and star formation activity in galaxies, notably the sloped and moving boundaries that divide
GASP – XII. The variety of physical processes occurring in a single galaxy group in formation
GAs Stripping Phenomena in galaxies with MUSE (GASP) is a program aimed at studying gas removal processes in nearby galaxies in different environments. We present the study of four galaxies that are
Significance of bar quenching in the global quenching of star formation
The suppression of star formation in the inner kiloparsec regions of barred disk galaxies due to the action of bars is known as bar quenching. We investigate here the significance of bar quenching in
Gas Content Regulates the Life Cycle of Star Formation and Black Hole Accretion in Galaxies
Feedback from active galactic nuclei (AGNs) is expected to impact the amount of cold gas in galaxies by driving strong galactic winds, by preventing external gas inflows, or by changing the
Starburst and post-starburst high-redshift protogalaxies
Quenching of star-formation has been identified in many starburst and post-starburst galaxies, indicating burst-like star-formation histories (SFH) in the primordial Universe. Galaxies undergoing


Stellar Feedback in Galaxies and the Origin of Galaxy-scale Winds
Feedback from massive stars is believed to play a critical role in driving galactic superwinds that enrich the intergalactic medium and shape the galaxy mass function, massmetallicity relation, and
The evolution of disk galaxies and the origin of S0 galaxies
We reconsider the relation between spiral and SO galaxies in the light of recent data on the colors and morphology of disk systems, and on the content of clusters at different redshifts. Star
Energy input from quasars regulates the growth and activity of black holes and their host galaxies
Simulations that simultaneously follow star formation and the growth of black holes during galaxy–galaxy collisions find that, in addition to generating a burst of star formation, a merger leads to strong inflows that feed gas to the supermassive black hole and thereby power the quasar.
Galaxy bimodality due to cold flows and shock heating
We address the origin of the robust bimodality observed in galaxy properties about a characteristic stellar mass ∼3 x 10 10 M ⊙ . Less massive galaxies tend to be ungrouped blue star forming discs,
From haloes to Galaxies – I. The dynamics of the gas regulator model and the implied cosmic sSFR history
We explore the basic parameters that drive the evolution of the fundamental properties of star forming galaxies within the gas regulator model, or bathtub-model. We derive the general analytic form
We present a comprehensive analysis of the relationship between star formation rate surface density, ΣSFR, and gas surface density, Σgas, at sub-kpc resolution in a sample of 18 nearby galaxies. We
An analytic model for the evolution of the stellar, gas and metal content of galaxies
We present an analytic formalism that describes the evolution of the stellar, gas and metal content of galaxies. It is based on the idea, inspired by hydrodynamic simulations, that galaxies live in a
Evidence of strong quasar feedback in the early Universe
Most theoretical models invoke quasar driven outflows to que nch star formation in massive galaxies, and this feedback mechanism is required to account for the population of old and passive galaxies
Massive molecular outflows and evidence for AGN feedback from CO observations
We study the properties of massive, galactic-scale outflows of molecular gas and investigate their impact on galaxy evolution. We present new IRAMPdBI CO(1-0) observations of local ultra-luminous
Ram pressure stripping of spiral galaxies in clusters
We use three-dimensional SPH/N-body simulations to study ram pressure stripping of gas from spiral galaxies orbiting in clusters. We find that the analytic expectation of Gunn & Gott, relating the