Results 121 to 130 of about 53,517 (330)

The zCOSMOS redshift survey : Influence of luminosity, mass and environment on the galaxy merger rate

open access: yes, 2011
The contribution of major mergers to galaxy mass assembly along cosmic time is an important ingredient to the galaxy evolution scenario. We aim to measure the evolution of the merger rate for both luminosity/mass selected galaxy samples and investigate ...
Abbas, U.   +58 more
core   +1 more source

Mergers of galaxies

open access: yes
This is a pre-print of a chapter for the Encyclopedia of Astrophysics (edited by I. Mandel, section editor S.
openaire   +2 more sources

Response of Fecal Bacteria and Fungi to Tannin‐Rich Diets in Sika Deer (Cervus nippon): Evidence from Both Feeding Experiments and Field Investigations

open access: yesIntegrative 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

Improved taxonomic and gene sampling advance the knowledge of deep relationships within Macrodasyida (Gastrotricha)

open access: yesCladistics, EarlyView.
Abstract Advances in Macrodasyida (Gastrotricha) phylogenetics, fuelled by new species discoveries and molecular data, are reshaping taxonomic classifications. Molecular analyses suggest polyphyly in Cephalodasyidae and Macrodasyidae, yet insufficient sampling continues to obscure precise relationships.
Agata Cesaretti   +3 more
wiley   +1 more source

An Excess of Active Galactic Nuclei Triggered by Galaxy Mergers in MaNGA Galaxies of Stellar Mass ∼1011 M ⊙

open access: yesThe Astrophysical Journal
To facilitate new studies of galaxy-merger-driven fueling of active galactic nuclei (AGNs), we present a catalog of 387 AGNs that we have identified in the final population of over 10,000 z < 0.15 galaxies observed by the Sloan Digital Sky Survey-IV ...
Julia M. Comerford   +9 more
doaj   +1 more source

A New Dissociative Galaxy Cluster Merger: RM J150822.0+575515.2

open access: yesThe Astrophysical Journal
Galaxy cluster mergers that exhibit clear dissociation between their dark matter, intracluster gas, and stellar components are great laboratories for probing dark matter properties.
Rodrigo Stancioli   +3 more
doaj   +1 more source

Counter-orbiting tidal debris as the origin of the MW DoS

open access: yesEPJ Web of Conferences, 2012
The Milky Way satellite galaxies show a phase-space distribution that is not expected from the standard scenario of galaxy formation. This is a strong hint at them being of tidal origin, which would naturally explain their spacial distribution in a disc ...
Pawlowski M.S.
doaj   +1 more source

Simulations of galactic winds and starbursts in galaxy clusters

open access: yes, 2005
We present an investigation of the metal enrichment of the intra-cluster medium (ICM) by galactic winds and merger-driven starbursts. We use combined N-body/hydrodynamic simulations with a semi-numerical galaxy formation model.
Aguirre   +43 more
core   +3 more sources

Winter‐active spiders (Clubiona) have a hyperactive antifreeze protein with a unique beta‐solenoid fold

open access: yesThe FEBS Journal, EarlyView.
Antifreeze proteins from winter‐active spiders were purified using their affinity for ice. After LC–MSMS characterization, corresponding transcripts were identified. The antifreeze protein folds as a β‐solenoid with a large flat ice‐binding site on one surface and can bind to ice crystals and prevent their growth at −4 °C.
Laurie A. Graham   +3 more
wiley   +1 more source

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