C2D Candidate YSO CLOUDS Catalog: Young Stellar Objects in Five Molecular Clouds
Updated 3mo ago
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Description
The Cores to Disks (C2D) Spitzer Legacy Program observed sources spanning the evolutionary sequence from molecular cores to protoplanetary disks. This catalog lists candidate young stellar objects (YSOs) in five nearby large molecular clouds: Chamaeleon II, Lupus, Ophiuchus, Perseus, and Serpens. It was produced by NASA and last updated on 2026-03-13.
Use Cases
Identify candidate protostars and substellar objects based on infrared observations from the Spitzer instruments.
Study the evolution of circumstellar dust, the raw material for planetary cores, based on data from systems up to about 10 Myr old.
Compare star-forming environments across different cloud masses and stellar masses as described in the survey.
Analyze the distribution of young stellar objects across five specific molecular cloud regions.
Strengths
Data originates from the Spitzer Legacy Program, using all three Spitzer instruments (IRAC, MIPS, IRS).
Targets about 190 systems likely in early stages of planetary system formation.
Surveys five specific, nearby large molecular clouds for new candidate objects.
Methodology is described in a referenced publication (Harvey et al. 2007b).
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 observational bias inherent to the Spitzer survey methodology and selected cloud regions.
Provenance
Source
National Aeronautics and Space Administration (NASA)
Collection Method
Derived from the C2D Full Catalog using methodology from Harvey et al. (2007b), based on observations from the Spitzer Space Telescope.
Time Range
Observations target systems with ages up to about 10 million years.
Freshness
Last updated 2026-03-13 19:57:04.184790; freshness should be verified.
Geography
Covers five molecular clouds: Chamaeleon II (CHA_II), Lupus (LUP), Ophiuchus (OPH), Perseus (PER), and Serpens (SER).
License is listed as 'other-license-specified'; specific terms must be checked. File formats include BIN and HTML.