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---
license: cc-by-sa-4.0
configs:
- config_name: captioned
data_files:
- split: train
path: captioned/train-*
- config_name: default
data_files:
- split: train
path: data/train-*
- split: validation
path: data/validation-*
- split: test
path: data/test-*
dataset_info:
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- name: mag_abs_z_photoz
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- name: mass_inf_photoz
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- name: mass_med_photoz
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- name: mass_sup_photoz
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dtype: string
- name: dr8_id
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num_bytes: 137740683
num_examples: 86471
download_size: 53440758
dataset_size: 137740683
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dtype: float64
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dtype: float64
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dtype: float64
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dtype: float64
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dtype: float64
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dtype: float32
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dtype: float32
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dtype: float64
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dtype: float64
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dtype: float64
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dtype: float64
- name: photo_zerr
dtype: float64
- name: spec_z
dtype: float64
- name: mag_abs_g_photoz
dtype: float64
- name: mag_abs_r_photoz
dtype: float64
- name: mag_abs_z_photoz
dtype: float64
- name: mass_inf_photoz
dtype: float64
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dtype: float64
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dtype: float64
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dtype: float64
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dtype: float64
- name: ssfr_inf_photoz
dtype: float64
- name: ssfr_med_photoz
dtype: float64
- name: ssfr_sup_photoz
dtype: float64
- name: sky_separation_arcsec_from_photoz
dtype: float64
- name: redshift
dtype: float64
- name: est_petro_th50_kpc
dtype: float64
- name: __index_level_0__
dtype: int64
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num_bytes: 7885463871
num_examples: 8474566
- name: validation
num_bytes: 80485046
num_examples: 86499
- name: test
num_bytes: 80457410
num_examples: 86471
download_size: 3096436101
dataset_size: 8046406327
tags:
- astronomy
size_categories:
- 1M<n<10M
---
# Galaxy metadata for training astroPT
Here we have metadata for ~8.5 million galaxies.
This metadata can be paired with galaxy jpg cutouts from the [DESI legacy survey DR8](https://www.legacysurvey.org/dr8/description/),
the cut outs are found here: [https://huggingface.co/datasets/Smith42/galaxies](https://huggingface.co/datasets/Smith42/galaxies).
I've split away 1% of the metadata into a test set, and 1% into a validation set.
The remaining 98% of the metadata comprise the training set.
## Useful links
Paper here: [https://arxiv.org/abs/2405.14930](https://arxiv.org/abs/2405.14930)
Models here: [https://huggingface.co/Smith42/astroPT](https://huggingface.co/Smith42/astroPT)
Code here: [https://github.com/smith42/astroPT](https://github.com/smith42/astroPT)
Upstream catalogue is [on Zenodo](https://zenodo.org/records/8360385) and paper describing the catalogue is available as [Walmsley+2023](https://doi.org/10.1093/mnras/stad2919).
If you find this dataset useful please consider citing the sources below 🚀🚀:
```
@article{ref_dey2019,
author = {Dey, A. and Schlegel, D. J. and Lang, D. and Blum, R. and Burleigh, K. and Fan, X. and Findlay, J. R. and Finkbeiner, D. and Herrera, D. and Juneau, S. and others},
title = {{Overview of the DESI Legacy Imaging Surveys}},
journal = {Astronomical Journal},
volume = {157},
number = {5},
pages = {168},
year = {2019},
issn = {1538-3881},
publisher = {The American Astronomical Society},
doi = {10.3847/1538-3881/ab089d}
}
```
```
@article{ref_walmsley2023,
author = {Walmsley, M. and G{\ifmmode\acute{e}\else\'{e}\fi}ron, T. and Kruk, S. and Scaife, A. M. M. and Lintott, C. and Masters, K. L. and Dawson, J. M. and Dickinson, H. and Fortson, L. and Garland, I. L. and others},
title = {{Galaxy Zoo DESI: Detailed morphology measurements for 8.7M galaxies in the DESI Legacy Imaging Surveys}},
journal = {Monthly Notices of the Royal Astronomical Society},
volume = {526},
number = {3},
pages = {4768--4786},
year = {2023},
issn = {0035-8711},
publisher = {Oxford Academic},
doi = {10.1093/mnras/stad2919}
}
```
```
@article{ref_smith2024,
author = {Smith, M. J. and Roberts, R. J. and Angeloudi, E. and Huertas-Company, M.},
title = {{AstroPT: Scaling Large Observation Models for Astronomy}},
journal = {ArXiv e-prints},
year = {2024},
eprint = {2405.14930},
doi = {10.48550/arXiv.2405.14930}
}
``` |