Emission-line stars in the LMC: the Armagh survey, and a metacatalogue

Abstract

[Aims] Accurate astrometry is required to reliably cross-match 20th-century photographic catalogues against 21st-century digital surveys. The present work provides modern-era identifications and astrometry for the 801 emission-line objects "of stellar appearance" in the Armagh survey (the largest of its nature to date). [Methods] Targets have been individually identified in digital images using the Armagh Atlas and, in most cases, unambiguously matched to entries in the UCAC astrometric catalogues. [Results] Astrometry with sub-arcsecond precision is now available for all the major photographic spectroscopic surveys of the LMC. The results are used to compile an annotated metacatalogue of 1675 individual, spectroscopically identified candidate H-alpha-emission stars, including detailed cross-matching between catalogues, and resolving many (though not all) identification ambiguities in individual primary sources.

References in corpus (3)

• Spitzer SAGE Infrared Photometry of Massive Stars in the Large Magellanic Cloud
• A New Population of Planetary Nebulae Discovered in the Large Magellanic Cloud (II): Complete PN Catalogue
• Hints of an axion-like particle mixing in the GeV gamma-ray blazar data?

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