The specific string does not appear to correspond to a widely known scientific paper or a standard astronomical or biological catalog designation.

The components "LS," "Ca," and "IraA" often appear in OCR-processed texts of historical documents. For example, similar fragments are frequently found in digitized versions of The Daily Colonist or The Century Dictionary hosted on Internet Archive . Technical Cataloging: In some contexts: LS might refer to a "Luminous Star" catalog.

often stands for Calcium or a specific Calcium-index in stellar spectroscopy.

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