sdss
Datasets
All datasets matching “sdss”mmu_sdss_sdss
mmu_sdss_sdss HATS Catalog Collection
This is the collection of HATS catalogs representing mmu_sdss_sdss.
This dataset is part of the Multimodal Universe,
a large-scale collection of multimodal astronomical data. For full details, see the paper:
The Multimodal Universe: Enabling Large-Scale Machine Learning with 100TBs of Astronomical Scientific Data.
Access the catalog
We recommend the use of the LSDB Python framework to access HATS catalogs.
LSDB can be… See the full description on the dataset page: https://huggingface.co/datasets/UniverseTBD/mmu_sdss_sdss.hsc_sdss_cross_matchedGaSNet-II-SDSS-dataset
The SDSS spectra used in the paper: https://arxiv.org/abs/2311.04146
The code is available on Github: https://github.com/Fucheng-Zhong/GaSNet-II
If the dataset or code helps in your research, please cite paper 2311.04146
split_sdss_hsc_embeddingssdss---
description: 'Spectra dataset based on SDSS-IV.
'
homepage: https://www.sdss.org/
version: 1.0.0
citation: "% % ACKNOWLEDGEMENTS\n% % From: https://www.sdss4.org/collaboration/citing-sdss/\n\
% \n% Funding for the Sloan Digital Sky Survey IV has been provided by the Alfred \ P. Sloan Foundation, the U.S. Department of Energy Office of Science, and the \ Participating Institutions. SDSS acknowledges support and resources from the Center \ for High-Performance Computing at the… See the full description on the dataset page: https://huggingface.co/datasets/MultimodalUniverse/sdss.mmu-norm-sdss
SDSS spectra — L1 (release v1)
This L1 repository contains 271,966 spectra matched across the release, in 11 shards (about 15 GB).
Schema
spectrum struct per row: lambda (vacuum, heliocentric, observer frame, Å; variable length ≤ ~4,700), flux (×10⁻¹⁷ erg s⁻¹ cm⁻² Å⁻¹), ivar, lsf_sigma, mask (native; nonzero = bad — verified), valid. Plus object_id, positions, metadata.
Padding: the upstream arrays used lambda = −1 with zero inverse variance for padding. Those… See the full description on the dataset page: https://huggingface.co/datasets/kshitijd/mmu-norm-sdss.