Results 121 to 130 of about 327,275 (314)

The Millennium Galaxy Catalogue: The Connection between Close Pairs and Asymmetry; Implications for the Galaxy Merger Rate [PDF]

open access: yes, 2007
We compare the use of galaxy asymmetry and pair proximity for measuring galaxy merger fractions and rates for a volume limited sample of 3184 galaxies with -21 < MB - 5 log h < -18 mag. and 0.010 < z < 0.123 drawn from the Millenium Galaxy Catalogue. Our
R. de Propris   +6 more
semanticscholar   +1 more source

Galaxy Mergers Moulding The Cgm

open access: yes, 2017
Galaxies are surrounded by sizeable gas reservoirs which host a significant amount of metals: the circum-galactic medium (CGM). The CGM acts as a mediator between the galaxy and the extra-galactic medium. However, our understanding of how galaxy mergers, a major evolutionary transformation, impact the CGM remains deficient.
Sara L. Ellison   +4 more
openaire   +2 more sources

Improving computer vision for plant pathology through advanced training techniques

open access: yesApplications in Plant Sciences, EarlyView.
Abstract Premise This study investigates advanced training techniques to improve the performance of convolutional neural networks for disease detection in cocoa, Theobroma cacao. Methods Despite recent stagnation in accuracy improvements in computer vision for image classification, our research demonstrates significant advancements in performance ...
Jamie R. Sykes   +2 more
wiley   +1 more source

Cosmo-Paleontology: Statistics of Fossil Groups in a Gravity-Only Simulation

open access: yesThe Open Journal of Astrophysics, 2022
We present a detailed study of fossil group candidates identified in "Last Journey", a gravity-only cosmological simulation covering a $(3.4\, h^{-1}\mathrm{Gpc})^3$ volume with a particle mass resolution of $m_p \approx 2.7 \times 10^9\, h^{-1}\mathrm{M}
Aurora Cossairt   +5 more
doaj   +1 more source

An Extremely Massive Dry Galaxy Merger in a Moderate Redshift Cluster [PDF]

open access: yes, 2007
We have identified perhaps the largest major galaxy merger ever seen. While analyzing Spitzer IRAC images of CL 0958+4702, an X-ray-selected cluster at z = 0.39, we discovered an unusual plume of stars extending ≳110 h-1 kpc outward from the bright ...
K. Rines, R. Finn, A. Vikhlinin
semanticscholar   +1 more source

On the Age Distribution of Classical Cepheids in the Galaxy

open access: yesAstronomische Nachrichten, EarlyView.
ABSTRACT We revisit the problem of the positive correlation between age and Galactocentric distance seen in Galactic Classical Cepheids, which at first sight may seem counter‐intuitive in the context of inside‐out galaxy formation. To explain it, we use the Besançon Galaxy Model and a simulation of star particles in the Galactic disc coupled with ...
Friedrich Anders   +5 more
wiley   +1 more source

Characterization of the Cubamyces Menziesii Terpenome

open access: yesChemBioChem, EarlyView.
The genome of Cubamyces menziesii reveals 18 putative sesquiterpene cyclase genes. These genes are cloned and expressed in Escherichia coli, yielding 10 active enzymes. Using farnesyl diphosphate as substrate, the enzymes are analyzed, and the products characterized after bioconversion, uncovering diverse sesquiterpene structures. This study highlights
Létitia Leydet   +10 more
wiley   +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

Variation of Molecular Line Ratios and Cloud Properties in the Arp 299 Galaxy Merger [PDF]

open access: yes, 1997
High-resolution observations of 12CO (2.″3),13CO (3.″9), and HCN (5.″4) J = 1-0 in the galaxy merger Arp 299 (IC 694 and NGC 3690) show that the line ratios vary dramatically across the system.
S. Aalto   +3 more
semanticscholar   +1 more source

LGBTQ+ Affirmative Care Training in Counselor Education: A Community‐Based Inquiry

open access: yesCounselor Education and Supervision, EarlyView.
ABSTRACT Counselor educators, counselors‐in‐training, and LGBTQ+ community members engaged in a community‐based qualitative inquiry exploring LGBTQ+ affirmative care education. Findings revealed counselor educators’ components and delivery of content, developmental implications for applying LGBTQ+ affirmative care, and gaps between education and LGBTQ+
Nancy E. Thacker Darrow   +2 more
wiley   +1 more source

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