Results 71 to 80 of about 262,815 (208)
THE MASS DEPENDENCE OF DWARF SATELLITE GALAXY QUENCHING [PDF]
The Astrophysical Journal, 2014 We combine observations of the Local Group with data from the NASA-Sloan Atlas to show the variation in the quenched fraction of satellite galaxies from low mass dwarf spheroidals and dwarf irregulars to more massive dwarfs similar to the Magellanic clouds.
Slater, Colin T., Bell, Eric F.
openaire +2 more sources
The Astrophysical JournalThis is the fourth paper of our series investigating the effects of active galactic nucleus (AGN) feedback in the evolution of an elliptical galaxy using the MACER framework.
Minhang Guo +3 more
doaj +1 more source
Genomic Signatures of Endemic Pathogen Exposure in a Declining Amphibian
Molecular Ecology, Volume 35, Issue 20, October 2026.ABSTRACT Endemic wildlife diseases can impose strong selection on threatened populations, yet whether persistence is associated with adaptive genomic responses remains poorly understood. We tested whether long‐term exposure to Batrachochytrium dendrobatidis (Bd) following population declines has left detectable selection signatures in the genome of the
Alexander S. Wendt +3 more
wiley +1 more source
Soil Science Society of America Journal, Volume 90, Issue 5, September/October 2026.Abstract This study examined the noble gas inventories of different grain size fractions of lunar soil 61220 as a proxy for solar wind‐implanted volatiles of in situ resource utilization (ISRU) interest (e.g., H2O and noble gases). Sample 61220 is representative of a “dry” highland regolith, comparable to those that may be sampled by missions exploring
M. Nottingham +4 more
wiley +1 more source
The Astrophysical Journal, 2023 We study satellite counts and quenched fractions for satellites of Milky Way analogs in Romulus25 , a large-volume cosmological hydrodynamic simulation.
Jordan Van Nest +5 more
doaj +1 more source
Spatially Resolving Galaxy Environmental Quenching in the SAMI Galaxy Survey
, 2019 In order to identify how spatially resolved star formation depends on environment, we use the unitless scale-radius ratio (r50,Hα/r50,cont) (building on earlier work of Schaefer et al. 2017). We will use this metric to investigate quenching across a much
Wang, Di (3724441)
core +1 more source
Early galaxy quenching in the universe
, 2023 Invited presentation at the "First Structures in the Universe" conference (Paris, September 4-8th 2023).
openaire +2 more sources
A Solar Analog Model for Decrease in Far Ultraviolet Irradiance Under a Grand Minimum
Earth and Space Science, Volume 13, Issue 9, September 2026.Abstract Solar analog field stars having a range of magnetic activity can provide an estimate of solar spectral irradiance (SSI) variability relevant to understanding the Sun's influence on terrestrial climate. This approach is particularly useful for far ultraviolet (FUV) irradiance that cannot be observed from the Earth surface.
D. Lubin, C. Melis, D. Tytler
wiley +1 more source
Constraining the Quenching Mechanisms in Galaxies
, 2022 A number of theoretical mechanisms have been invoked to explain the transformation of star forming galaxies into quenched galaxies, such as the removal of gas by active galactic nuclei- (AGN) and star formation-driven galactic outflows, and the heating of the galaxy halo and subsequent halting of gas accretion caused by virial shocks and preventative ...
openaire +2 more sources
The Great Cosmic Silence: What Does the Fermi Paradox Tell About the Future of Humanity?
Global Policy, Volume 17, Issue 4, Page 553-565, September 2026.ABSTRACT This article examines how institutional time horizons shape the long‐term survival prospects of human technological civilisation. While research on global catastrophic and existential risks has expanded, the temporal structures of political‐economic institutions remain underexamined.
Heikki Patomäki
wiley +1 more source