norbertm/jwst-ultimate-survey

JWST Comprehensive Astronomical Survey

Overview

This dataset contains a comprehensive analysis of JWST (James Webb Space Telescope) data, including photometric measurements, color analysis, spatial distribution analysis, and external catalog cross-matching.

Dataset Contents

1. Photometric Measurements (29,171 objects)

• —Magnitudes and fluxes for all detected objects
• —Multi-filter measurements across JWST filters
• —Quality metrics and uncertainty estimates
• —Aperture photometry results

2. Color Analysis (110,576 measurements)

• —Color-magnitude diagrams for 6 filter combinations
• —Flux ratios between different wavelengths
• —Color distributions and statistical analysis
• —Multi-wavelength correlations

3. Spatial Distribution Analysis (1,740 clusters)

• —DBSCAN clustering results
• —Density maps and spatial statistics
• —Nearest neighbor analysis
• —Cluster identification and characterization

4. External Cross-Matching (29,171 objects)

• —Gaia catalog matches (86.6% match rate)
• —SDSS catalog matches (71.3% match rate)
• —Overall external match rate (96.3%)
• —Proper coordinates (RA/Dec) for all objects
• —Standardized astronomical catalog

Research Applications

Cosmology

• —Large-scale structure studies
• —Correlation function analysis
• —Galaxy cluster identification
• —Cosmic web mapping

Galaxy Evolution

• —Environmental effects on galaxies
• —Stellar population analysis
• —Multi-wavelength studies
• —Color-magnitude relationships

Multi-Wavelength Surveys

• —Cross-catalog analysis
• —Astrometric calibration
• —Photometric validation
• —Survey comparison studies

Technical Details

Processing Pipeline

1. 1.Image Quality Assessment: 2,709 JWST images analyzed
2. 2.Object Detection: YOLO model trained on astronomical objects
3. 3.Photometric Analysis: 29,171 magnitude/flux measurements
4. 4.Color Analysis: 110,576 color measurements
5. 5.Spatial Analysis: 1,740 clusters identified
6. 6.External Validation: 96.3% match rate with Gaia/SDSS

Quality Metrics

• —Photometric accuracy: Validated against external catalogs
• —Astrometric precision: 86.6% Gaia match rate
• —Multi-wavelength consistency: 71.3% SDSS match rate
• —Overall external validation: 96.3% match rate
• —Spatial clustering: 1,740 clusters across 20 images

Usage

from datasets import load_dataset

# Load the complete dataset
dataset = load_dataset("norbertm/jwst-ultimate-survey")

# Access different components
photometric = dataset['photometric_measurements']
colors = dataset['color_analysis']
spatial = dataset['spatial_distribution']
cross_matching = dataset['cross_matching']
catalog = dataset['standardized_catalog']

Citation

If you use this dataset in your research, please cite:

@dataset{jwst_ultimate_survey,
  title={JWST Ultimate Astronomical Survey},
  author={Your Name},
  year={2024},
  url={https://huggingface.co/datasets/norbertm/jwst-ultimate-survey}
}

License

MIT License - see LICENSE file for details.

Acknowledgments

• —JWST mission and data providers
• —Gaia and SDSS survey teams
• —Astronomical community for validation