Results 91 to 100 of about 495,355 (288)
The Astrophysical JournalStar formation quenching in galaxies plays a crucial role in galaxy evolution and is believed to be driven primarily by galaxy mass and environment.
Yun Zheng +6 more
doaj +1 more source
Nature or nurture? Clues from the distribution of specific star formation rates in SDSS galaxies [PDF]
, 2015 This work investigates the main mechanism(s) that regulate the specific star formation rate (SSFR) in nearby galaxies, cross-correlating two proxies of this quantity -- the equivalent width of the \Ha\ line and the $(u-r)$ colour -- with other physical ...
Ascasibar, Yago +6 more
core +1 more source
Quenching time-scales of galaxies in the eagle simulations
Monthly Notices of the Royal Astronomical Society, 2019 We use the \eagle\ simulations to study the connection between the quenching timescale, $ _{\rm Q}$, and the physical mechanisms that transform star-forming galaxies into passive galaxies. By quantifying $ _{\rm Q}$ in two complementary ways - as the time over which (i) galaxies traverse the green valley on the colour-mass diagram, or (ii) leave the ...
Ruby J Wright +5 more
openaire +5 more sources
Multiple mechanisms quench passive spiral galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2017 15 pages, 7 figures, accepted for publication in ...
Nicolas J. Bonne +5 more
openaire +6 more sources
Heat Transfer, EarlyView.ABSTRACT This review explores the impact of gravitational instability on convective heat transfer, integrating existing research results and theoretical models. Gravitational instability is vital in promoting or hindering convective actions in different systems, such as atmospheric events, ocean currents, and industrial processes.
Hossam A. Nabwey +3 more
wiley +1 more source
Strangulation as the primary mechanism for shutting down star formation in galaxies
, 2015 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
Cochrane, Rachel +2 more
core +1 more source
Galaxy And Mass Assembly (GAMA): growing up in a bad neighbourhood - how do low-mass galaxies become passive? [PDF]
, 2015 Both theoretical predictions and observations of the very nearby Universe suggest that low-mass galaxies (log$_{10}$[M$_{*}$/M$_{\odot}$]
Alpaslan, M. +15 more
core +4 more sources
Nordic Journal of Botany, EarlyView.A new species Astragalus zhobensis, from Qamardin Karez, Zhob district, northern Balochistan, Pakistan is described and illustrated. The new species is morphologically similar to A. cartilagineus, but can be distinguished by strigose hairs 3–5 mm long, (not stiff 1.5−4.0 mm long hairs); stipules 5–15 mm (not 8−12 mm) long; leaflets in 4–6 pairs, (not 3–
Tahir Khan +4 more
wiley +1 more source
The Astrophysical Journal, 2023 In recent years, increasing attention has been devoted to semi-empirical, data-driven models to tackle some aspects of the complex and still largely debated topic of galaxy formation and evolution. We here present a new semi-empirical model whose marking
L. Boco +5 more
doaj +1 more source
The Suppression of Star Formation and the Effect of Galaxy Environment in Low-Redshift Galaxy Groups
, 2012 Understanding the interaction between galaxies and their surroundings is central to building a coherent picture of galaxy evolution. Here we use GALEX imaging of a statistically representative sample of 23 galaxy groups at z=0.06 to explore how local and
Ali Dariush +41 more
core +1 more source