Results 131 to 140 of about 510,650 (316)
Galaxy Merging and the Fundamental Plane of Elliptical Galaxies [PDF]
, 2006 We present preliminary results of numerical simulations of dissipationless merging of stellar systems, aimed at exploring the consequences of merging between gas free, spheroidal systems. In particular, we study the dynamical and structural characteristics of hierarchical merging between equal mass stellar systems, and we compare the properties of the ...
Carlo Nipoti +2 more
openaire +3 more sources
Dissipational versus Dissipationless Galaxy Formation and the Dark Matter Content of Galaxies
, 2010 We examine two extreme models for the build-up of the stellar component of luminous elliptical galaxies. In one case, we assume the build-up of stars is dissipational, with centrally accreted gas radiating away its orbital and thermal energy; the dark ...
Abadi +58 more
core +1 more source
Genomic Insights into Post‐Domestication Expansion and Selection of Body Size in Ponies
Advanced Science, Volume 12, Issue 16, April 24, 2025.The authors’ research delves into the history of ponies by assembling a pony genome and integrating horse genomes. This unveils genetic connections between Asian and European pony breeds. Cis‐regulatory elements of key genes impacting body size are also identified.
Xingzheng Li +23 more
wiley +1 more source
Kinematics and stellar populations of the dwarf elliptical galaxy IC 3653 [PDF]
, 2007 We present the first 3D observations of a diffuse elliptical galaxy (dE). The good quality data (S/N up to 40) reveal the kinematical signature of an embedded stellar disc, reminiscent of what is commonly observed in elliptical galaxies, though ...
I. Chilingarian +3 more
semanticscholar +1 more source
Galaxy Formation from the Primordial Black Holes
EPJ Web of Conferences, 2017 Supermassive black hole (SMBH) of size MBH = 106-10M⊙ is common in the Universe and it defines the center of the galaxy. A galaxy and the SMBH are generally thought to have co-evolved.
Morikawa Masahiro
doaj +1 more source
Evidence for the Evolution of Young Early-Type Galaxies in the GOODS/CDF-S Field
, 2007 We have developed an efficient photometric technique for identifying young early-type galaxy candidates using a combination of photometric redshifts, spectral-type classification, and optical/near-infrared colors.
Bahram Mobasher +11 more
core +1 more source
The Magnetosphere‐Ionosphere‐Ground Responses to the May 2024 Super Solar Storm
Space Weather, Volume 23, Issue 4, April 2025.Abstract Earth suffered the attack of the strongest geomagnetic storm in the last 20 years (Kp = 9, Dst∼ ${\sim} $ −400 nT) occurred on 11 May 2024. Taking advantage of the LEO multi‐parameter CSES satellite (launched in 2018) with a large inclination angle 97° $97{}^{\circ}$, with the joint observations of NOAA and GOES, we present a comprehensive ...
Zhenxia Zhang +15 more
wiley +1 more source
Oxygen and Neon Abundances of Planetary Nebulae in the Elliptical Galaxy NGC 4697 [PDF]
, 2005 This paper presents deep spectra of 14 planetary nebulae (PNs) at a variety of angular distances from the center of the flattened elliptical galaxy NGC 4697, which is located at ~11 Mpc from us.
R. Méndez +5 more
semanticscholar +1 more source
Dynamical Models of Elliptical Galaxies [PDF]
Symposium - International Astronomical Union, 1975 Self-consistent dynamical models of elliptical galaxies have been constructed using a modification of the Prendergast-Tomer algorithm. They reproduce many of the observed properties of elliptical galaxies.
openaire +3 more sources
Environmental Microbiology Reports, Volume 17, Issue 2, April 2025.The quorum sensing regulated sRNA Lrs1 participates in the adaptation of Pseudomonas aeruginosa in low iron by downregulating the siderophore pyochelin, the Quorum Sensing system PQS, and its associated virulence factor phenazines. ABSTRACT Iron is an essential nutrient for microbial growth. The opportunistic pathogen Pseudomonas aeruginosa can survive
Dimitra Panagiotopoulou +7 more
wiley +1 more source