Results 51 to 60 of about 11,976,045 (293)

OVERVIEW OF THE SDSS-IV MaNGA SURVEY: MAPPING NEARBY GALAXIES AT APACHE POINT OBSERVATORY [PDF]

open access: yes, 2014
We present an overview of a new integral field spectroscopic survey called MaNGA (Mapping Nearby Galaxies at Apache Point Observatory), one of three core programs in the fourth-generation Sloan Digital Sky Survey (SDSS-IV) that began on 2014 July 1 ...
K. Bundy   +67 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

Structure and Dynamics of Elliptical Galaxies

open access: yesAnnual Review of Astronomy and Astrophysics, 1991
The equilibrium models, observations and formation processes of elliptical galaxies are reviewed.
Zeeuw, P.T. de, Franx, M.
openaire   +3 more sources

The void galaxy survey: photometry, structure and identity of void galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2016
We analyze photometry from deep B-band images of 59 void galaxies in the Void Galaxy Survey (VGS), together with their near-infrared 3.6$ $m and 4.5$ $m Spitzer photometry. The VGS galaxies constitute a sample of void galaxies that were selected by a geometric-topological procedure from the SDSS DR7 data release, and which populate the deep interior ...
B. Beygu   +7 more
openaire   +4 more sources

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

Dependence of Galaxy Structure on Rest‐Frame Wavelength and Galaxy Type [PDF]

open access: yesThe Astrophysical Journal, 2007
We present a quantitative analysis of the morphologies for 199 nearby galaxies as parameterized with measurements of the concentration, asymmetry, and clumpiness (CAS) parameters at wavelengths from 0.15-0.85 micrometers. We find that these CAS parameters depend on both galaxy type and the wavelength of observation.
Taylor-Mager, Violet   +3 more
openaire   +2 more sources

Peanuts at an angle: detecting and measuring the three-dimensional structure of bars in moderately inclined galaxies [PDF]

open access: yes, 2013
We show that direct detection and measurement of the vertically thickened parts of bars (so called ‘boxy’ or ‘peanut- shaped’ bulges) are possible not only for edge-on galaxies but also for galaxies with moderate inclinations (i < 70◦), and that examples
P. Erwin, V. Debattista
semanticscholar   +1 more source

Programming Next‐Generation Synthetic Biosensors by Genetic Circuit Design

open access: yesAdvanced Science, EarlyView.
Synthetic biology enables genetic circuit‐based biosensing to detect diverse targets, process signals, and transduce them into readable outputs or intracellular regulatory activities. However, field deployment and real‐world application of such synthetic biosensors face considerable challenges in sensitivity, specificity, speed, stability, and ...
Yuanli Gao   +4 more
wiley   +1 more source

The Clumpy Structure Of Five Star-bursting Dwarf Galaxies In The MaNGA Survey [PDF]

open access: green, 2023
Mengting Ju   +8 more
openalex   +1 more source

On a mechanism that structures galaxies [PDF]

open access: yesSymposium - International Astronomical Union, 1979
By considering the interaction of a single stellar orbit with a weak cos 2Φ potential it is shown that in the central regions of galaxies with slowly rising rotation curves, the elongations of the orbits will align along any potential valley and oscillate about it. This effect is more pronounced for elongated orbits.
openaire   +2 more sources

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