Comparisons of the environmental dependence of galaxy properties between galaxies above and below M [PDF]
From the Main galaxy sample of the Sloan Digital Sky Survey Data Release 6 (SDSS DR6), we construct two volume-limited samples above and below the value of M, to explore the difference of the environmental dependence of galaxy properties between galaxies above and below the value of M .
arxiv +1 more source
RECONCILING DWARF GALAXIES WITH ΛCDM COSMOLOGY: SIMULATING A REALISTIC POPULATION OF SATELLITES AROUND A MILKY WAY–MASS GALAXY [PDF]
Low-mass “dwarf” galaxies represent the most significant challenges to the cold dark matter (CDM) model of cosmological structure formation. Because these faint galaxies are (best) observed within the Local Group (LG) of the Milky Way (MW) and Andromeda (
A. Wetzel+5 more
semanticscholar +1 more source
Staphylococcus Aureus AgrA Modulators from South African Antimicrobial Plants.
South African plants are an underutilized metabolites source for novel antimicrobials targeting key quorum sensing (QS) systems like the Staphylococcus aureus AgrA. AgrA modulating metabolites constitute a new approach to reducing resistance development.
Christiana Eleojo Aruwa, Saheed Sabiu
wiley +1 more source
Visualizing the Hidden Features of Galaxy Morphology with Machine Learning [PDF]
We train three convolutional neural networks (CNNs) to classify galaxies with Galaxy Zoo 2 dataset and extract the activations from the last fully connected layer or the last average pooling layer of CNNs to study the high-dimensional abstract feature representations of galaxy images.
arxiv
COSMIC REIONIZATION AND EARLY STAR-FORMING GALAXIES: A JOINT ANALYSIS OF NEW CONSTRAINTS FROM PLANCK AND THE HUBBLE SPACE TELESCOPE [PDF]
We discuss new constraints on the epoch of cosmic reionization and test the assumption that most of the ionizing photons responsible arose from high-redshift star-forming galaxies.
B. Robertson+3 more
semanticscholar +1 more source
Characterization of the Cubamyces menziesii terpenome
Long‐lasting polypore fungi are significant producers of terpene cyclases of high interest for medicinal or biotechnological applications. Following the 1,000 Fungal Genomes initiative launched by the Joint Genome Institute, we explored the genome of Cubamyces (C.) menziesii and identified eighteen genes encoding sesquiterpene cyclases. In a search for
Gilles Iacazio+10 more
wiley +1 more source
Spectral Analysis of the Stromlo-APM Survey II. Galaxy luminosity function and clustering by spectral type [PDF]
We study the luminosity function and clustering properties of subsamples of local galaxies selected from the Stromlo-APM survey by the rest-frame equivalent widths of their Halpha and Oii emission lines. The b_J luminosity function of star-forming galaxies has a significantly steeper faint-end slope than that for quiescent galaxies: the majority of sub-
arxiv +1 more source
Galaxy morphology in rich clusters: Implications for the formation and evolution of galaxies
A study of the galaxy populations in 55 rich clusters is presented together with a discussion of the implications for the formation and/or evolution of different morphological types.
A. Dressler
semanticscholar +1 more source
The hierarchical formation of the brightest cluster galaxies [PDF]
We use semi-analytic techniques to study the formation and evolution of brightest cluster galaxies (BCGs). We show the extreme hierarchical nature of these objects and discuss the limitations of simple ways to capture their evolution.
G. Lucia, J. Blaizot
semanticscholar +1 more source
Publishing supporting data significantly impacts researchers' productivity, especially in experiments requiring extensive tracking of data, processing steps, parameters, and outputs. A managed workflow environment, combined with RO‐Crates, addresses these data management challenges. Workflows provide an alternative for handling complex data analyses by
Abraham Nieva de la Hidalga+8 more
wiley +1 more source