DeepDrill SHARK: Simulated Galaxy Catalog for LSST Deep Drilling Fields

The Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST) will observe several Deep Drilling Fields. This simulated lightcone catalog from the SHARK semi-analytic model covers 107.9 deg^2 to compare with the DeepDrill survey, which used the Spitzer Space Telescope to observe three LSST DDFs in the ECDFS, ES1, and XMM-LSS fields. The catalog includes a flux selection at the [3.6] band > 0.575 uJy and a redshift range of 0 < z < 6.

Use Cases

• Validate galaxy formation and evolution models based on simulated redshift and flux data.
• Benchmark semi-analytic model predictions against Spitzer IRAC observations in the 3.6 um and 4.5 um bands.
• Prepare analysis pipelines for the LSST Deep Drilling Fields using simulated lightcone data.
• Study galaxy populations within a specific flux limit (> 0.575 uJy at [3.6]) and redshift range (0 < z < 6).

Strengths

• Covers a significant simulated area of 107.9 square degrees.
• Includes a defined flux selection (> 0.575 uJy) and redshift range (0 < z < 6) for consistency with survey comparisons.
• Built from the published SHARK semi-analytic model (Lagos et al. 2018, 2019).

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Column-level documentation is absent; field semantics must be inferred after download.
• The description notes that spatial queries are not expected to be useful and positional searches will be slow.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Simulated data generated from the SHARK semi-analytic model of galaxy formation and evolution.

Time Range

Simulated redshift range of 0 < z < 6.

Freshness

Last updated 2026-03-13 18:21:34.652701; freshness should be verified.

Geography

Simulated footprints of LSST Deep Drilling Fields: Extended Chandra Deep Field-South (ECDFS), ELAIS-S1 (ES1), and XMM-Large-Scale Structure Survey field (XMM-LSS).