Results 81 to 90 of about 553,808 (287)

Dark matter in ALFALFA galaxies

open access: yesAstronomy & Astrophysics
Aims. This paper aims to investigate the galaxy-halo connection using a large sample of individual galaxies with H I-integrated spectra. We determined their dark matter content by applying a dynamical method based on H I line widths measured with the ...
Yang Meng   +6 more
doaj   +1 more source

The X-Ray Binary-star Cluster Connection in Late-type Galaxies

open access: yesThe Astrophysical Journal, 2023
We conduct one of the largest systematic investigations of bright X-ray binaries (XRBs) in both young star clusters and ancient globular clusters (GCs) using a sample of six nearby star-forming galaxies.
Qiana Hunt   +5 more
doaj   +1 more source

A grid of MARCS model atmospheres for late-type stars. I. Methods and general properties [PDF]

open access: yes, 2008
Context. In analyses of stellar spectra and colours, and for the analysis of integrated light from galaxies, a homogeneous grid of model atmospheres of late-type stars and corresponding flux spectra is needed. Aims.
B. Gustafsson   +5 more
semanticscholar   +1 more source

Solid Harmonic Wavelet Bispectrum for Image Analysis

open access: yesAdvanced Science, EarlyView.
The Solid Harmonic Wavelet Bispectrum (SHWB), a rotation‐ and translation‐invariant descriptor that captures higher‐order (phase) correlations in signals, is introduced. Combining wavelet scattering, bispectral analysis, and group theory, SHWB achieves interpretable, data‐efficient representations and demonstrates competitive performance across texture,
Alex Brown   +3 more
wiley   +1 more source

MegaMorph: classifying galaxy morphology using multi-wavelength S\'ersic profile fits [PDF]

open access: yes, 2015
Aims. This work investigates the potential of using the wavelength-dependence of galaxy structural parameters (S\'ersic index, n, and effective radius, Re) to separate galaxies into distinct types. Methods.
Bamford, S. P.   +4 more
core   +2 more sources

HIGH-MASS STAR FORMATION IN NORMAL LATE-TYPE GALAXIES: OBSERVATIONAL CONSTRAINTS TO THE INITIAL MASS FUNCTION [PDF]

open access: yes, 2009
We use Hα and far-ultraviolet (FUV, 1539 Å) Galaxy Evolution Explorer (GALEX) data for a large sample of nearby objects to study the high-mass (m⩾ 2 M☉) star formation activity of normal late-type galaxies.
A. Boselli   +5 more
semanticscholar   +1 more source

Substituent‐Based Modulation of Self‐Assembly and Immunogenicity of Amphipathic Peptides

open access: yesAdvanced Science, EarlyView.
This study systematically investigates how positional and subtle changes, such as substituents on the phenyl ring attached to short amphipathic peptides, influence their self‐assembly, fibril morphology, and immunogenic responses. ABSTRACT Self‐assembled peptide‐based biomaterials provide versatile platforms for biomedical uses, featuring customizable ...
Anirban Das   +13 more
wiley   +1 more source

Early-type Galaxies on the Star Formation Main Sequence: Internal Star Formation Geometries Revealed with MaNGA and Their Environmental Origin

open access: yesThe Astrophysical Journal
Star-forming galaxies on the main sequence (MS) are often regarded as a uniform population characterized by similar global star formation properties. However, there exists a diversity in galaxy morphologies at a fixed stellar mass and star formation rate.
Shuhei Koyama   +5 more
doaj   +1 more source

Evolution of the spin of late-type galaxies caused by galaxy-galaxy interactions

open access: yes, 2021
17 pages, 17 figures, 2 tables.
Hwang, Jeong-Sun   +3 more
openaire   +2 more sources

The star formation history of intermediate-redshift late-type galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2004
We combine the latest observations of disk galaxy photometry and rotation curves at moderate redshift from the FORS Deep Field (FDF) with simple models of chemical enrichment. Our method describes the buildup of the stellar component through infall of gas and allows for gas and metal outflows.
Ferreras, Ignacio   +3 more
openaire   +5 more sources

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