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• W2783991901 endingPage "1700" @default.
• W2783991901 startingPage "1686" @default.
• W2783991901 abstract "We use the semi-analytic model of galaxy formation sag to study the relevance of mass and environmental quenching on satellite galaxies. We find that environmental processes dominate the star formation (SF) quenching of low-mass satellites (⁠|$M_{star } lesssim 10^{10.5}, {rm M}_{odot }$|⁠), whereas high-mass galaxies typically quench as centrals. High-mass galaxies that remain actively forming stars while being accreted are found to be mainly affected by mass quenching after their first infall. For a given stellar mass, our model predicts SF quenching to be less efficient in low-mass haloes both before and after infall, in contradiction with common interpretations of observational data. Our model supports a two-stage scenario to explain the SF quenching. Initially, the SF of satellites resembles that of centrals until the gas cooling rate is reduced to approximately half its value at infall. Then, the SF fades through secular processes that exhaust the cold gas reservoir. This reservoir is not replenished efficiently due to the action of either ram-pressure stripping of the hot gas in low-mass satellites, or feedback from the active galactic nucleus in high-mass satellites. The delay times for the onset of SF quenching are found to range from |${approx } 3$| to |${approx } 1, {rm Gyr}$| for low-mass (⁠|$M_{star } approx 10^{10}, {rm M}_{odot }$|⁠) and high-mass (⁠|$M_{star } approx 10^{11}, {rm M}_{odot }$|⁠) satellites, respectively. SF fades in |${approx } 1, {rm Gyr}$|⁠, largely independent of stellar mass. We find that the SF quenching of low-mass satellites supports the so-called delay-then-rapid quenching scenario. However, the SF history of |$z$| = 0 passive satellites of any stellar mass is better described by a delay-then-fade quenching scenario." @default.
• W2783991901 created "2018-01-26" @default.
• W2783991901 creator A5011490726 @default.
• W2783991901 creator A5035952788 @default.
• W2783991901 creator A5048178025 @default.
• W2783991901 creator A5079629288 @default.
• W2783991901 date "2018-11-28" @default.
• W2783991901 modified "2023-10-17" @default.
• W2783991901 title "Semi-analytic galaxies – II. Revealing the role of environmental and mass quenching in galaxy formation" @default.
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• W2783991901 doi "https://doi.org/10.1093/mnras/sty3214" @default.
• W2783991901 hasPublicationYear "2018" @default.
• W2783991901 type Work @default.
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