Results 81 to 90 of about 417,027 (232)
Structure and Kinematics of Early-Type Galaxies from Integral Field Spectroscopy [PDF]
, 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 present-day galaxy population in spiral galaxies [PDF]
AIP Conference Proceedings, 2009 Although there are many more stellar population studies of elliptical and lenticular galaxies, studies of spiral galaxies are catching up, due to higher signal to noise data on one hand, and better analysis methods on the other. Here I start by discussing some modern methods of analyzing integrated spectra of spiral galaxies, and comparing them with ...
Reynier Peletier +7 more
openaire +4 more sources
Aggregate, Volume 6, Issue 10, October 2025.We explore the hierarchical chirality transfer in self‐assembled fluorescent homopolypeptide systems for achieving aqueous circularly polarized luminescence (CPL), and reveal the α‐helix‐dominated CPL regulation mechanism during the self‐assembly process .
Jinhui Jiang +10 more
wiley +1 more source
Stellar Populations in Spiral Galaxies [PDF]
Proceedings of the International Astronomical Union, 2006 Abstract We report preliminary results of the characterization of bulge and inner disk stellar populations for 8 nearby spiral galaxies using Gemini/GMOS. The long-slit spectra extend out to 1–2 disk scale lengths with S/N/Å>50. Two different model fitting techniques, absorption-line indices and full spectral synthesis, are found to weigh age ...
J. Jesús González +2 more
openaire +3 more sources
Aggregate, Volume 6, Issue 10, October 2025.Tau amyloid corona‐shelled nanoparticles (TACONs) were synthesized by incubating gold nanoparticles (AuNPs) with tau monomers that had been pre‐reacted with heparin. These TACONs represent a promising high‐throughput screening platform for identifying tau oligomer degraders as potential therapeutic agents for Alzheimer's disease.
Hyo Gi Jung +12 more
wiley +1 more source
MicrobiologyOpen, Volume 14, Issue 5, October 2025.An intact type 9 secretion system (T9SS) is required for Porphyromonas gingivalis‐mediated dysregulation of aortic smooth muscle cell migration and proliferation. During infection, T9SS also enhanced phosphorylation of multiple sites on transcription factor Smad3 that is implicated in pathologic cell responses to TGF‐β/Smad signaling.
Priscilla L. Phillips, Leticia Reyes
wiley +1 more source
The Universal Rotation Curve of Spiral Galaxies: I. the Dark Matter Connection [PDF]
, 1995 We use a homogeneous sample of about 1100 optical and radio rotation curves (RCs) and relative surface photometry to investigate the main mass structure properties of spirals, over a range of 6 magnitudes and out to 1.5 and 2 optical radii (for the ...
M. Persic, P. Salucci, F. Stel
semanticscholar +1 more source
Enhanced Radiation at Aviation Altitudes and Plasmaspheric Hiss Waves—A Time Shift Analysis
Journal of Geophysical Research: Space Physics, Volume 130, Issue 10, October 2025.Abstract Increased radiation levels in Earth's atmosphere can present significant risks to airline pilots, passengers, and commercial space travelers. Recent findings have revealed a strong statistical link between radiation dose rates detected at aviation altitudes (>9 ${ >} 9$km) and plasmaspheric hiss wave power observed along the same magnetic ...
Homayon Aryan +5 more
wiley +1 more source
Rotation Curves of Spiral Galaxies [PDF]
, 2000 ▪ Abstract Rotation curves of spiral galaxies are the major tool for determining the distribution of mass in spiral galaxies.
Y. Sofue, V. Rubin
semanticscholar +1 more source
A Chromosome Inversion Creates a Supergene for Sex and Colour in Lake Malawi Cichlids
Molecular Ecology, Volume 34, Issue 20, October 2025.ABSTRACT Cichlid fishes have the highest rates of evolutionary turnover of sex chromosomes among vertebrates. Many large structural polymorphisms in the radiation of cichlids in Lake Malawi are associated with sex chromosomes and may also carry adaptive variation.
Kristen A. Behrens +10 more
wiley +1 more source