Results 121 to 130 of about 675,630 (383)

Internal kinematics of spiral galaxies in distant clusters IV. Gas kinematics of spiral galaxies in intermediate redshift clusters and in the field [PDF]

open access: yes, 2010
(Abridged) We trace the interaction processes of galaxies at intermediate redshift by measuring the irregularity of their ionized gas kinematics, and investigate these irregularities as a function of the environment (cluster versus field) and of ...
A. Böhm   +126 more
core   +3 more sources

INTERACTIONS OF GALAXIES IN THE GALAXY CLUSTER ENVIRONMENT [PDF]

open access: yesThe Astrophysical Journal, 2009
We study the dependence of galaxy properties on the clustercentric radius and the environment attributed to the nearest neighbor galaxy using the SDSS galaxies associated with the Abell galaxy clusters. We find that there exists a characteristic scale where the properties of galaxies suddenly start to depend on the clustercentric radius at fixed ...
Changbom Park, Ho Seong Hwang
openaire   +3 more sources

Genomic Variation Underpins Genetic Divergence and Differing Salt Resilience in Sesbania bispinosa

open access: yesAdvanced Science, EarlyView.
Sesbania, a leguminous halophyte, thrives in saline soils. Comparative genomics reveals key genomic variations—particularly chromosomal inversions—are identified as contributors to population differentiation and salt resilience. These findings advance the understanding of genomic variation driving evolution and phenotypic differentiation and offer ...
Gai Huang   +13 more
wiley   +1 more source

The Optical Variability of the BL Lac AO 0235+164

open access: yesGalaxies, 2016
In this work, we present optical R band observations of AO 0235+164 carried out during the period of November 2006 to December 2012 using the Ap6E CCD camera attached to the primary focus of the 70 cm meniscus telescope at Abastumani Observatory, Georgia.
Junhui Fan   +12 more
doaj   +1 more source

Structure and Kinematics of Early-Type Galaxies from Integral Field Spectroscopy [PDF]

open access: yes, 2016
Observations of galaxy isophotes, long-slit kinematics, and high-resolution photometry suggested a possible dichotomy between two distinct classes of elliptical galaxies. But these methods are expensive for large galaxy samples.
M. Cappellari
semanticscholar   +1 more source

The Anatomy of Galaxies

open access: yes, 2016
Just after WWII Astronomy started to live its "Golden Age", not differently to many other sciences and human activities, especially in the west side countries. The improved resolution of telescopes and the appearance of new efficient light detectors (e.g. CCDs in the middle eighty) greatly impacted the extragalactic researches.
D'ONOFRIO, MAURO   +20 more
openaire   +5 more sources

Photovoltaic and Photomultiplication Dual‐Mode Near‐Infrared Organic Detectors with Large Dynamic Range for Intensive and Faint Light Sensing

open access: yesAdvanced Science, EarlyView.
A photovoltaic/photomultiplication dual‐mode organic photodetector is developed by integrating two different organic bulk‐heterojunctions, one introduces the photovoltaic effect, and the other triggers photomultiplication charge generation in the stacked device at different voltage polarities.
Xin Hu   +6 more
wiley   +1 more source

Predictions and Outcomes for the Dynamics of Rotating Galaxies

open access: yesGalaxies, 2020
A review is given of a priori predictions made for the dynamics of rotating galaxies. One theory—MOND—has had many predictions corroborated by subsequent observations.
Stacy McGaugh
doaj   +1 more source

Phenomenological approach to the modelling of elliptical galaxies: The problem of the mass-to-light ratio [PDF]

open access: yesSerbian Astronomical Journal, 2007
In this paper the problem of the phenomenological modelling of elliptical galaxies using various available observational data is presented. Recently, Tortora, Cardona and Piedipalumbo (2007) suggested a double power law expression for the global ...
Samurović S.
doaj   +1 more source

Bar fraction in lenticular galaxies: dependence on luminosity and environment

open access: yes, 2010
We present a study of bars in lenticular galaxies based on a sample of 371 galaxies from the SDSS-DR 7 and 2MASS in optical and near-infrared bands, respectively.
Abadi   +59 more
core   +1 more source

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