Pictures of other galaxies
Pro Research Analysisby 
Searched over 200M research papers
Pictures of Other Galaxies: A Comprehensive Overview
Digital Catalogs of Nearby Galaxies
Catalog of 113 Nearby Galaxies
A significant resource for images of nearby galaxies is the digital catalog containing 113 galaxies. These galaxies are bright, large, and well-resolved, captured using charge-coupled devices (CCDs) at the Palomar and Lowell Observatories. The catalog includes images in various photometric bands, such as Thuan-Gunn g, r, and i bands for 31 spiral galaxies and B_J and R bands for 82 spirals and ellipticals. The data are photometrically calibrated, with foreground stars removed, and span the Hubble classification classes1 4 5.
M 81 Group of Galaxies
The M 81 group of galaxies has been extensively imaged using the Hubble Space Telescope/WFPC2. This collection includes galaxies such as NGC 2366, NGC 2976, and IC 2574, among others. The images provide detailed insights into the distances, kinematics, and structure of these galaxies, with distance moduli derived from the brightness of the tip of the red giant branch2.
Advanced Image Processing Techniques
Faint-Galaxy Photometry and Image-Analysis System
An interactive image-analysis system has been developed to perform photometric analysis of direct images of galaxies. This system includes a faint-galaxy photometry algorithm that automatically finds, classifies, and measures the total magnitude of galaxies, even in moderately crowded fields. The system also features a simulation routine for creating realistic artificial CCD images of star and galaxy fields, which helps test the performance and reliability of the photometry algorithm3.
Image Processing of Galaxy Photographs
New computer techniques have been introduced for analyzing and processing photographic images of galaxies. These methods enhance very faint and low-contrast features, improve resolution, and reveal new details in images of galaxies like NGC 7331 and M87. Techniques such as digital algorithms, nonlinear pattern-recognition filters, and atmospheric deconvolution are employed to achieve these enhancements7.
Specialized Galaxy Atlases
Near-Infrared Atlas of S0-Sa Galaxies
An atlas of Ks-band images of 206 early-type galaxies, including S0-S0/a, ellipticals, and Sa galaxies, has been compiled. The images, obtained using 3-4 meter class telescopes, are significantly deeper than those from the Two-Micron All-Sky Survey, allowing the detection of faint outer discs in S0 galaxies. This atlas provides both visual and photometric classifications, detailing structures such as lenses, barlenses, and boxy/peanut/x-shaped structures6.
Multiwavelength Galaxy Synthesis Atlas
A comprehensive atlas of ultraviolet and infrared images of approximately 15,750 local galaxies has been created using data from NASA’s WISE and GALEX missions. This atlas offers matched resolution and astrometry, facilitating the estimation of local and integrated star formation rates and stellar masses across the local galaxy population. The data are publicly available and provide a uniform database for studying gas and dust in nearby galaxies10.
Conclusion
The study and cataloging of galaxy images have advanced significantly, providing detailed and well-calibrated data across various photometric bands and wavelengths. These resources, including digital catalogs, advanced image processing techniques, and specialized atlases, offer invaluable insights into the structure, classification, and physical properties of galaxies. These comprehensive datasets are essential for ongoing research and understanding of the universe.
Sources and full results
Most relevant research papers on this topic
A catalog of digital images of 113 nearby galaxies
This paper presents a digital catalog of 113 nearby, bright, large, and well-resolved galaxies, taken with CCDs at the Palomar and Lowell observatories.
Highly CitedThe M 81 group of galaxies: New distances, kinematics and structure ?;??
The M 81 group of galaxies has a median distance modulus of 27:m91, which is consistent with their red giant branch structure and their distance from the Milky Way.
Highly CitedA FAINT-GALAXY PHOTOMETRY AND IMAGE-ANALYSIS SYSTEM
The system enables automatic object finding, classification, and total-magnitude photometry for galaxies in moderately crowded fields, with a simulation routine for testing performance and reliability.
A Catalog of Digital Images of Nearby Galaxies
This digital catalog of 113 nearby galaxies includes bright, large, and well-resolved images taken with CCDs at Palomar and Lowell observatories.
A Catalog of Digital Images of Nearby Galaxies
This digital catalog of 113 nearby galaxies provides a comprehensive resource for studying nearby bright, large, and well-resolved galaxies.
Near-infrared atlas of S0-Sa galaxies (NIRS0S): NIRS0S atlas
The NIRS0S atlas reveals multiple lenses in up to 25% of early-type galaxies, challenging the hierarchical evolutionary picture of galaxies.
Image processing of galaxy photographs
New computer techniques enhance galaxy photographs, revealing new details and improving resolution in nebulous and stellar images.
Large Scale View of Hubble Deep Field and Picture of Galaxies, Supernova
This image shows a large scale view of the Hubble Deep Field and shows galaxies, black holes, and supernovae in the sky.
PreprintAutomatic morphological classification of galaxy images.
This supervised learning algorithm accurately classifies galaxy images into spiral, elliptical, and edge-on galaxies with a 90% accuracy compared to manual classifications.
A z = 0 Multiwavelength Galaxy Synthesis. I. A WISE and GALEX Atlas of Local Galaxies
This atlas of local galaxies from WISE and GALEX missions provides a uniform database for estimating star formation rates and stellar masses, enabling a comparison to previous work.
Highly Cited