Data Products

VENUS will provide uniform JWST imaging and follow-up products for a sample of 60 well-studied massive lensing clusters. The core data set is NIRCam 10-filter imaging over a total of ~0.16 deg2 reaching typical depths of 5σ ≈ 28 mag, complemented by multi-epoch and spectroscopic follow-up in a best-selected subsample.

Release timeline

We aim for rapid community value with staged releases. Exact dates and contents will be posted here as they are finalized.

  • Observations: Ongoing; imaging is scheduled to be completed in Summer 2026.
  • DR1 (planned): First public release anticipated in late 2026.
  • Subsequent releases: Additional releases will include updated calibrations, value-added catalogs, lens-model updates, and follow-up spectroscopy products.

What will be released

(DR1) Reduced images with and without BCG+ICL subtraction (DR1) Source and photometry catalogs (DR1) Photometric redshift and stellar population catalogs (DR1,2) Lens models (DR2) NIRSpec spectra (DR2) Differential images for time-domain studies (when available)

Imaging

  • NIRCam imaging (uniform 10-filter imaging across the full 60-cluster sample). TBD (download link)
  • Coordinated parallel imaging (e.g., NIRISS / additional NIRCam filters where applicable). TBD
  • Mosaics and per-visit products (field-dependent). TBD

Catalogs & derived products

  • Source catalogs (photometry, basic morphology, quality flags). TBD
  • Photometric redshifts and SED-fit quantities (e.g., stellar mass, SFR) when available. TBD
  • High-redshift candidate lists (selection-dependent; versioned). TBD

Lens models

  • Public lens models for magnification and source-plane reconstructions (cluster-dependent). TBD
  • Model documentation (assumptions, versions, citations). TBD

Spectroscopy & time-domain

  • NIRSpec/MSA spectra (Epoch 2 follow-up in a best-selected 10-cluster subsample; PRISM + G395M). TBD
  • Multi-epoch imaging products (difference imaging, transient/variability candidates where applicable). TBD

Access & documentation

How to cite

Please cite the relevant VENUS data release paper (when available) and the associated lens-model references. Citation text and BibTeX will be provided here.

Data formats

  • Imaging: calibrated FITS products (and mosaics when available)
  • Catalogs: FITS tables / CSV (final format TBD)
  • Spectra: 1D spectra and associated metadata (format TBD)

Quick links

Official program information for VENUS is available from STScI: Program Information (GO 6882).