MSX and 2MASS cross-correlation in LMC

DOI

The Large Magellanic Cloud (LMC) has been observed by the Midcourse Space Experiment (MSX) in the mid-infrared and the Two Micron All Sky Survey (2MASS) in the near-infrared. We have performed a cross-correlation of the 1806 MSX catalog sources and nearly 1.4 million 2MASS catalogued point and extended sources and find 1664 matches. Using the available color information, we identify a number of stellar populations and nebulae, including main-sequence stars, giant stars, red supergiants, carbon- and oxygen-rich asymptotic giant branch (AGB) stars, planetary nebulae, H II regions, and other dusty objects likely associated with early-type stars. A total of 731 of these sources have no previous identification. We compile a listing of all objects, which includes photometry and astrometry. The 8.3{mu}m MSX sensitivity is the limiting factor for object detection: only the brighter red objects, specifically the red supergiants, AGB stars, planetary nebulae, and H II regions, are detected in the LMC. The remaining objects are likely in the Galactic foreground. The spatial distribution of the infrared LMC sources may contribute to understanding stellar formation and evolution and the overall galactic evolution. We demonstrate that a combined mid- and near-infrared photometric baseline provides a powerful means of identifying new objects in the LMC for future ground-based and space-based follow-up observations.

Cone search capability for table J/AJ/122/1844/table2 (MSX sources in common with the 2MASS 2IDR)

Cone search capability for table J/AJ/122/1844/table3 (MSX sources in common with the 2MASS unreleased regions)

Cone search capability for table J/AJ/122/1844/table4 (MSX sources without 2MASS point source matches)

Identifier
DOI http://doi.org/10.26093/cds/vizier.51221844
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/AJ/122/1844
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/122/1844
Related Identifier https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/122/1844
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/AJ/122/1844
Provenance
Creator Egan M.P.; van Dyk S.D.; Price S.D.
Publisher CDS
Publication Year 2002
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Galactic and extragalactic Astronomy; Natural Sciences; Observational Astronomy; Physics