SPICES Lynx Field: Chandra X-Ray Source Catalog with Optical and IR Counterparts

153 X-ray sources detected in a 184.7 ks Chandra ACIS-I observation of the Lynx field. The catalog includes 132 soft-band and 11 hard-band sources, with optical counterparts for 77% and near-infrared counterparts for 71% of the sources. The data was produced by NASA from observations taken on 2000 May 3-4.

Use Cases

• Analyze the relationship between X-ray flux and spectral hardness based on the soft and hard band detections.
• Cross-match X-ray sources with optical and near-infrared counterparts to study multi-wavelength properties.
• Investigate the morphology of X-ray emitting galaxies based on the Hubble Space Telescope imaging mentioned for a subsample.
• Study the population of extremely red objects (EROs) associated with X-ray sources.
• Validate models of X-ray emission from late-type Galactic dwarfs based on the identified M7 dwarf source.

Strengths

• Deep observation with 184.7 ks total effective exposure time.
• Catalog contains 153 sources with detailed breakdowns by detection band (soft, hard, combined).
• High counterpart identification rates: 77% optical and 71% near-infrared.
• Includes spectroscopic redshifts for 18 sources obtained with Keck telescopes.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect temporal bias inherent to the 2000 observation dates.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Observations from the Chandra X-Ray Observatory's Advanced CCD Imaging Spectrometer (ACIS-I).

Time Range

Observations from 2000 May 3-4.

Freshness

Last updated 2026-03-13 18:03:42.083096; freshness should be verified.

Geography

Lynx field (J2000.0 RA = 08h 48m, Dec = +44d 54').