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The Binarity at LOw Metallicity (BLOeM) campaign
A European Southern Observatory (ESO) Large Programme:
Monitoring of ~1000 massive stars in the low-metallicity conditions of the Small Magellanic Cloud
P: Shenar; dPI: Bodensteiner
BLOeM in a nutshell:
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Sample? 929 massive stars in the SMC
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Instrument? FLAMES/Very Large Telescope
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Total time? 116 hours
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Baseline? 2 years
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Number of visits? 25
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Resolving power? ~7000
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Spectral range? 395-456 nm
The BLOeM sample, marked on a Gaia color-magnitude diagram of the Small Magellanic Cloud.
The sample targets massive stars (M > 8Msun) of all types, excluding red supergiants.
Objectives, at low metallicity:
Initial binary fraction
Mass ratio distribution
Period, eccentricity distributions
Initial mass function
Hunt for black holes
Identify post-interaction binaries
Benchmark abundance pattern
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