000007931 001__ 7931
000007931 005__ 20260211164612.0
000007931 0247_ $$2DOI$$a10.3847/1538-4357/ae0731
000007931 037__ $$aSCART-2026-0094
000007931 100__ $$aKalari, V. M. 
000007931 245__ $$aA Search for Be Stars in Multiple Systems within the Solar Neighborhood
000007931 260__ $$c2025
000007931 520__ $$aBe stars are widely considered to be the product of binary interaction. However, whether all Be stars are formed via binary interaction is unclear, and detailed estimates of the multiplicity of Be stars and characterization of their components are required. In this study, we present speckle observations of 76 Be stars taken using the Gemini North and South speckle imagers spanning angular separations of 20 mas–1.2, reaching contrasts Δm ∼ 5–6 mag at separations around 0.1. We identify 11 (6 previously unreported) binaries having separations in the 10–1000 au range, and Δm between 0.8 and 5 mag in our sample. Using archival data to search for components outside our visibility range, we add further multiples (16), which include three triples, leading to a total of 24 multiple systems. Our findings rule out a multiplicity fraction >27% at the 3σ level within the speckle observations separation range and detection limits. Future homogeneous spectroscopic/interferometric observations are essential to probe the inner separations, and along with analysis of available astrometry can cover the entire separation range to characterize the multiplicity fraction, and evolutionary scenario of Be stars.
000007931 594__ $$aNO
000007931 6531_ $$aBe stars
000007931 6531_ $$aSpeckle Interferometry
000007931 6531_ $$aBinary Stars
000007931 700__ $$aSalinas, R. 
000007931 700__ $$aSáez-Carvajal, C. 
000007931 700__ $$aOudmaijer, René 
000007931 700__ $$aHowell, S. 
000007931 700__ $$aCaballero-Nieves, S. 
000007931 700__ $$aKamp, K. 
000007931 700__ $$aMatson, R. 
000007931 700__ $$aScott, N. 
000007931 700__ $$aCao, T. 
000007931 700__ $$aHartman, Z. 
000007931 700__ $$aKim, H. 
000007931 773__ $$c192$$n2$$pAstrophysical Journal$$v993$$y2025
000007931 8560_ $$frene.oudmaijer@ksb-orb.be
000007931 85642 $$ahttps://iopscience.iop.org/article/10.3847/1538-4357/ae0731/pdf
000007931 905__ $$apublished in
000007931 980__ $$aREFERD