Datasets:

Modalities:
Image
Text
Formats:
parquet
ArXiv:
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Datasets
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License:
image
imagewidth (px)
512
512
dr8_id
stringlengths
7
11
613985_1104
209368_47
309525_2743
498228_3002
607876_871
634336_832
308819_3574
196341_6105
657490_2388
483739_187
503515_3682
489848_3137
249231_1262
218990_5318
539296_1027
390051_3146
578980_3491
420099_3293
381137_1130
607783_329
326610_696
545908_1369
590011_2130
129449_2305
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643507_1561
517733_850
609795_4320
444679_2781
428916_1260
651165_3463
481797_3128
440752_2661
468348_3369
606693_1744
223015_1471
531282_3474
480097_4912
71228_2888
260194_1266
552563_3600
64106_1551
498752_98
524410_784
438408_3622
615264_1028
369092_771
206982_2730
365515_11
634903_407
357062_1693
271503_1336
338159_127
65937_2086
542343_1546
475998_2960
624600_1793
591601_1843
450273_3964
438928_955
492043_242
584554_3773
616242_3395
500645_907
270312_1288
394867_2446
474381_3527
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548235_1049
213693_1665
170300_2944
388634_2085
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401903_1094
278886_1677
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268986_4729
444316_1015
114641_5108
591890_3252
49435_846
436520_1343
231142_4148
397049_3484
530191_1815
530242_3379
472193_556
324892_2161
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463038_759
479210_4740
591622_1819
456369_3346
330242_5245
473613_507
433098_3640
72875_841

Galaxies for training astroPT

Here we have ~8.5 million galaxy cutouts from the DESI legacy survey DR8. The cut outs are 512x512 pixel jpg images centred on the galaxy source.

I've split away 1% of the images into a test set, and 1% into a validation set. The remaining 98% of the images comprise the training set.

There is also accompanying metadata! The metadata is in parquet format in the root dir of this repo. You can link the metadata with the galaxies via their dr8_id.

Useful links

Paper here: https://arxiv.org/abs/2405.14930

Models here: https://huggingface.co/Smith42/astroPT

Code here: https://github.com/smith42/astroPT

Upstream catalogue is on Zenodo and paper describing the catalogue is available as Walmsley+2023.

If you find this dataset useful please consider citing the upstream 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}
}
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