Results 171 to 180 of about 13,046,567 (395)
The Local Group and Other Neighboring Galaxy Groups [PDF]
The Astronomical Journal, 2005 Over the last few years, rapid progress has been made in distance measurements for nearby galaxies based on the magnitude of the tip of red giant branch stars. Current CCD surveys with HST and large ground- based telescopes bring $\sim$10%-accurate distances for roughly a hundred galaxies within 5 Mpc. The new data on distances to galaxies situated in (
openaire +2 more sources
Integrative Zoology, EarlyView.Feeding with tannin‐rich diets altered the fecal microbial composition and increased the relative abundance of tannin‐degrading microbes. We hypothesize that fecal bacteria and fungi may play important roles in helping herbivores adapt to tannin‐rich diets but respond to different tannin concentrations varies.
Di Zhu +5 more
wiley +1 more source
Observational Evidence for an Age Dependence of Halo Bias
, 2006 We study the dependence of the cross-correlation between galaxies and galaxy groups on group properties. Confirming previous results, we find that the correlation strength is stronger for more massive groups, in good agreement with the expected mass ...
Frank C. van den Bosch +5 more
core +2 more sources
The Evolution of Galaxy Groups and of Galaxies Therein [PDF]
, 2007 Properties of groups of galaxies depend sensitively on the algorithm for group selection, and even the most recent catalogs of groups built from redshift-space selection should suffer from projections and infalling galaxies. The cosmo-dynamical evolution of groups from initial Hubble expansion to collapse and virialization leads to a fundamental track (
openaire +3 more sources
Out There No One Has a Right to Die
Bioethics, EarlyView.ABSTRACT The eventual goal of space exploration is to colonize exoplanets and their moons outside our solar system. This is a dangerous and immoral endeavour. The extraterrestrial life forms encountered would be hostile, vulnerable or both, and the descendants of the original pioneers would be involuntarily exposed to hazardous conditions and ...
Matti Häyry
wiley +1 more source
Galaxy evolution in groups and clusters: satellite star formation histories and quenching time-scales in a hierarchical Universe [PDF]
, 2013 Andrew Wetzel +3 more
openalex +1 more source
Computers and chess masters: The role of AI in transforming elite human performance
British Journal of Psychology, EarlyView.Abstract Advances in Artificial Intelligence (AI) have made significant strides in recent years, often supplementing rather than replacing human performance. The extent of their assistance at the highest levels of human performance remains unclear. We analyse over 11.6 million decisions of elite chess players, a domain commonly used as a testbed for AI
Merim Bilalić, Mario Graf, Nemanja Vaci
wiley +1 more source
Radio-continuum study of the Nearby sculptor group galaxies. Part 1: NGC 300 at λ=20 cm [PDF]
, 2012 Timothy J. Galvin +13 more
openalex +1 more source
The Astrophysical Journal LettersWe investigated the alignment between the angular momenta of galaxy groups and the spines of their associated cosmic filaments. Our results demonstrate a significant tendency for these two orientations to be perpendicular, indicating that the rotation of
Yu Rong, Peng Wang, Xiao-xiao Tang
doaj +1 more source
The Space Density of Primordial Gas Clouds near Galaxies and Groups and their Relation to Galactic High-Velocity Clouds [PDF]
, 2000 M. A. Zwaan, F. H. Briggs
openalex +1 more source