Results 141 to 150 of about 13,046,567 (395)
The Globular Cluster System of the Galaxy NGC 6876
Galaxies, 2017 We present preliminary results of the deep photometric study of the elliptical galaxy NGC 6876, located at the center of the Pavo group, and its globular cluster system.
Ana Inés Ennis +2 more
doaj +1 more source
New dwarf galaxy candidates in the Centaurus group
, 2015 Recent studies of the distribution and kinematics of the Milky Way and Andromeda satellite galaxy systems have confirmed the existence of coplanar, corotating structures of galaxies. In addition to the 'missing satellite problem', these structures pose a
Binggeli, Bruno +2 more
core +1 more source
RESOLVING THE GALAXIES WITHIN A GIANT Lyα NEBULA: WITNESSING THE FORMATION OF A GALAXY GROUP? [PDF]
, 2011 Detailed analysis of the substructure of Lyα nebulae can put important constraints on the physical mechanisms at work and the properties of galaxies forming within them.
Moire K. M. Prescott +10 more
semanticscholar +1 more source
Properties of intra-group stars and galaxies in galaxy groups: ‘normal’ versus ‘fossil’ groups [PDF]
Monthly Notices of the Royal Astronomical Society, 2006 Cosmological LCDM simulations of 12 M_vir~10^14 Msun galaxy groups have been performed, invoking star formation, chemical evolution with non-instantaneous recycling, metallicity dependent radiative cooling, strong star-burst driven galactic super-winds and effects of a meta-galactic UV field. At z=0, intra-group light (IGL) fractions are found to be 12-
openaire +4 more sources
A multi-wavelength study of the gravitational lens COSMOS J095930+023427
, 2012 We present a multi-wavelength study of the gravitational lens COSMOS J095930+023427 (z=0.89), together with the associated galaxy group located at $z\sim0.7$ along the line of sight and the lensed background galaxy.
Cao, Shuo +3 more
core +1 more source
Mapping extragalactic dark matter annihilation with galaxy surveys: A systematic study of stacked group searches [PDF]
, 2017 Dark matter in the halos surrounding galaxy groups and clusters can annihilate to high-energy photons. Recent advancements in the construction of galaxy group catalogs provide many thousands of potential extragalactic targets for dark matter.
M. Lisanti +4 more
semanticscholar +1 more source
The Curious Case of CysE: Diversity and Distribution of Serine Acetyltransferases in Bacteria
Proteins: Structure, Function, and Bioinformatics, EarlyView.ABSTRACT Serine acetyltransferase (CysE) is a member of the left‐handed β‐helix family of acetyltransferases that catalyze the rate limiting step in de novo cysteine biosynthesis. There are two isoforms of CysE that differ in length, with the shorter isoform lacking approximately 76 amino acids at the N‐terminus of the protein from the serine ...
Keely E. A. Oldham +3 more
wiley +1 more source
MAGNIFICATION BY GALAXY GROUP DARK MATTER HALOS [PDF]
, 2011 We report on the detection of gravitational lensing magnification by a population of galaxy groups, at a significance level of 4.9σ. Using X-ray-selected groups in the COSMOS 1.64 deg2 field, and high-redshift Lyman break galaxies as sources, we measure ...
Jes Ford +8 more
semanticscholar +1 more source
Rare Metals, EarlyView.ABSTRACT Nanocomposite permanent magnets with reduced rare‐earth content represent a promising class of materials for next‐generation high‐performance applications. However, asynchronous precipitation of soft and hard magnetic phases often results in grain size mismatch and limited coercivity.
Xiaowei Zhang +6 more
wiley +1 more source
Formation of the Dark Matter–Deficient S0 Galaxy NGC 4111 under the Tidal Interactions
The Astrophysical Journal LettersWe present high-sensitivity and large-scale atomic hydrogen (H i ) observations toward lenticular (S0) galaxy NGC 4111 using the Five-hundred-meter Aperture Spherical Radio Telescope.
Mei Ai +10 more
doaj +1 more source