Refinement of the B[e] Supergiant Nature of LHA 115-N 82:Discovery of 667-day Photometric Period

Zenodo (CERN European Organization for Nuclear Research) 2026 Preprint Open access

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Authors: Semen Penkov
DOI: 10.5281/zenodo.18621714
Cited by: 0

Abstract

We report the analysis of the unclassified emission-line star LHA 115-N 82 in the Small Magellanic Cloud. Using Gaia DR3 astrometry and ASAS-SN long-term photometry, we confirm its nature as a B[e] supergiant (sgB[e]). For the first time, a robust photometric period of 667.260.05 days has been identified, classified as GCAS-type variability. These findings provide critical constraints on the circumstellar disk dynamics of this poorly studied object.

Fields of Study & Subjects

Stellar planetary and galactic studies Astrophysics and Star Formation Studies Astronomy and Astrophysical Research

Publication details

Journal / source
Zenodo (CERN European Organization for Nuclear Research)
Publication date
12 February 2026
Language
EN
Document type
Preprint