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Overview of HELP field XMM-LSS

This HELP field is defined by SPIRE coverage of the XMM-Newton, also known as the High Throughput X-ray Spectroscopy Mission and the X-ray Multi-Mirror Mission Large Survey (XMM-LSS) field.

Click here to get a simple VOX query to get you started. To query the flux columns use f_best_g, ferr_best_g, m_best_g, and merr_best_g for the lowest error flux, flux error, AB magnitude, and magnitude error measurement available. All the main broadband optical and near infrared fluxes are available by replacing g with u, g, r, i, z, y, j, h, k, or ks. A full description of all columns is available here. You can also query the full table with all specific bands available.

Key stats:
Area 21.75 square degrees
Masterlist objects 8705837
XID+ objects 360500
Photo-z objects 6124027
CIGALE objects 61888
Median g depth AB 27.49 mag, or 0.04 uJy
Median K or Ks depth AB 24.12 mag, or 0.81 uJy
Median IRAC i1 depth AB 24.07 mag, or 0.85 uJy
Median SPIRE 250 depth AB 15.39 mag, or 2528.84 uJy

The raw files for this field can be downloaded from the following links:

This field contains ancillary data sets from the following surveys: