ESO DOI Service

• Shenar, Tomer [School of Physics and Astronomy, Tel Aviv University, Israel]
• Bodensteiner, Julia [Anton Pannekoek Institute for Astronomy, University of Amsterdam, Science Park 904, The Netherlands]
• Abdul-Masih, Michael [Department of Astrophysics, University of La Laguna, Tenerife, Spain; Canary Islands Institute of Astrophysics, La Laguna, Tenerife, Spain]
• Backs, Frank [Institute of Astronomy, KU Leuven, Belgium]
• Berlanas, Sara R. [Department of Astrophysics, University of La Laguna, Tenerife, Spain; Canary Islands Institute of Astrophysics, La Laguna, Tenerife, Spain; Centre for Astrobiology, Madrid, Spain]
• Bestenlehner, Joachim M. [School of Chemical, Materials and Biological Engineering, University of Sheffield, UK; School of Mathematical and Physical Sciences, University of Sheffield, UK]
• Bobrick, Alexey [School of Physics and Astronomy, Monash University, Clayton, Australia; OzGrav: Australian Research Council Centre of Excellence for Gravitational Wave Discovery, Clayton, Australia]
• Bowman, Dominic M. [Institute of Astronomy, KU Leuven, Belgium; School of Mathematics, Statistics and Physics, Newcastle University, UK]
• Britavskiy, Nikolay [Royal Observatory of Belgium, Brussels, Belgium]
• Crowther, Paul A. [School of Mathematical and Physical Sciences, University of Sheffield, UK]
• Deshmukh, Kunal [Institute of Astronomy, KU Leuven, Belgium]
• Fabry, Matthias [Department of Astrophysics and Planetary Science, Villanova University, USA]
• Gieles, Mark [Pg. Lluís Companys 23, Barcelona, Spain; Institute of Cosmos Sciences (ICCUB), University of Barcelona, Spain]
• Gilkis, Avishai [Institute of Astronomy, University of Cambridge, UK]
• González-Torà, Gemma [Computational Astronomy Institute, Astronomy Centre, Heidelberg University, Germany]
• Gräfener, Götz [Argelander–Institute for Astronomy, University of Bonn, Germany]
• Gull, Maude [The Observatories of the Carnegie Institution for Science, Pasadena, USA; Department of Astronomy, California Institute of Technology, Pasadena, USA]
• Götberg, Ylva [Institute of Science and Technology Austria, Klosterneuburg, Austria]
• Hawcroft, Calum [Space Telescope Science Institute, Baltimore, USA]
• Hénault-Brunet, Vincent [Department of Astronomy and Physics, Saint Mary’s University, Halifax, Canada]
• Herrero, Artemio [Department of Astrophysics, University of La Laguna, Tenerife, Spain; Canary Islands Institute of Astrophysics, La Laguna, Tenerife, Spain]
• Holgado, Gonzalo [Department of Astrophysics, University of La Laguna, Tenerife, Spain; Canary Islands Institute of Astrophysics, La Laguna, Tenerife, Spain]
• Izzard, Robert G. [University of Surrey, United Kingdom]
• Janssens, Soetkin [Research Center for the Early Universe, Graduate School of Science, University of Tokyo, Japan]
• Jin, Harim [Max Planck Institute for Astrophysics, Garching, Germany]
• Kalari, Venu M. [Gemini Observatory/NSF NOIRLab, La Serena, Chile]
• Katabi, Zehava [School of Physics and Astronomy, Tel Aviv University, Israel]
• de Koter, Alex [Institute of Astronomy, KU Leuven, Belgium; Anton Pannekoek Institute for Astronomy, University of Amsterdam, Science Park 904, The Netherlands]
• Klencki, Jakub [Max Planck Institute for Astrophysics, Garching, Germany]
• Kubátová, Brankica [Astronomical Institute of the Czech Academy of Sciences, Ondřejov, Czech Republic]
• Kubát, Jiří [Astronomical Institute of the Czech Academy of Sciences, Ondřejov, Czech Republic]
• Langer, Norbert [Argelander–Institute for Astronomy, University of Bonn, Germany]
• Lechien, Thibault [Max Planck Institute for Astrophysics, Garching, Germany]
• Lennon, Daniel [Institute of Astronomy, KU Leuven, Belgium; Department of Astrophysics, University of La Laguna, Tenerife, Spain]
• Lefever, Roel [Computational Astronomy Institute, Astronomy Centre, Heidelberg University, Germany]
• Ludwig, Bethany [Institute of Astronomy, KU Leuven, Belgium]
• Mahy, Laurent [Royal Observatory of Belgium, Brussels, Belgium]
• Maíz Apellániz, Jesús [Centre for Astrobiology, Madrid, Spain]
• Mandel, Ilya [School of Physics and Astronomy, Monash University, Clayton, Australia; OzGrav: Australian Research Council Centre of Excellence for Gravitational Wave Discovery, Clayton, Australia]
• Mang Román, Armin [Institute for Physics and Astronomy, University of Potsdam, Germany]
• Maravelias, Grigoris [PeriAstron, Heraklion, Crete, Greece; Institute of Astrophysics, FORTH, Heraklion, Greece]
• Marchant, Pablo [Astronomical Observatory, Ghent University, Belgium]
• Menon, Athira [Columbia University in the city of New York, Department of Astronomy, U.S.A.]
• Najarro, Francisco [Centre for Astrobiology (CSIC-INTA), Torrejón de Ardoz, Spain]
• O’Grady, Anna [McWilliams Center for Cosmology & Astrophysics, Department of Physics, Carnegie Mellon University, Pittsburgh, USA]
• Oskinova, Lidia [Institute for Physics and Astronomy, University of Potsdam, Germany]
• Ovadia, Roey [School of Physics and Astronomy, Tel Aviv University, Israel]
• Patrick, Lee R. [Centre for Astrobiology (CSIC-INTA), Torrejón de Ardoz, Spain]
• Pauli, Daniel [Institute of Astronomy, KU Leuven, Belgium]
• Pawlak, Michał [Lund Observatory, Division of Astrophysics, Department of Physics, Lund University, Sweden]
• Bernini Peron, Matheus [Computational Astronomy Institute, Astronomy Centre, Heidelberg University, Germany]
• Picco, Annachiara [Institute of Astronomy, KU Leuven, Belgium]
• Ramachandran, Varsha [Computational Astronomy Institute, Astronomy Centre, Heidelberg University, Germany]
• Renzo, Mathieu [Steward Observatory, Department of Astronomy, University of Arizona, USA]
• Rocha, Danilo F. [National Astrophysical Laboratory, Itajubá, Brazil.]
• Sana, Hugues [Institute of Astronomy, KU Leuven, Belgium]
• Sander, Andreas A.C. [Computational Astronomy Institute, Astronomy Centre, Heidelberg University, Germany]
• Sayada, Tom [School of Physics and Astronomy, Tel Aviv University, Israel]
• Schootemeijer, Abel [Argelander–Institute for Astronomy, University of Bonn, Germany]
• Schneider, Fabian R. N. [Heidelberg Institute for Theoretical Studies, Germany; Computational Astronomy Institute, Astronomy Centre, Heidelberg University, Germany]
• Seeburger, Rhys [Astrophysics Research Institute, Liverpool John Moores University, UK]
• Sen, Koushik [Steward Observatory, Department of Astronomy, University of Arizona, USA]
• Shahaf, Sahar [Max Planck Institute for Astronomy, Heidelberg, Germany]
• Simón-Díaz, Sergio [Institute of Astronomy, KU Leuven, Belgium; Department of Astrophysics, University of La Laguna, Tenerife, Spain]
• Stoop, Mitchel [Anton Pannekoek Institute for Astronomy, University of Amsterdam, Science Park 904, The Netherlands]
• Toonen, Silvia [Anton Pannekoek Institute for Astronomy, University of Amsterdam, Science Park 904, The Netherlands]
• Tramper, Frank [Centre for Astrobiology (CSIC-INTA), Torrejón de Ardoz, Spain]
• Valli, Ruggero [Max Planck Institute for Astrophysics, Garching, Germany]
• Van Daele, Pieterjan [School of Mathematics, Statistics and Physics, Newcastle University, UK]
• van Loon, Jacco Th. [Lennard-Jones Laboratories, Keele University, UK]
• Son, Lieke van [Department of Astrophysics/IMAPP, Radboud University, Nijmegen, The Netherlands]
• Vigna-Gómez, Alejandro [Niels Bohr International Academy, Niels Bohr Institute, University of Copenhagen, Denmark]
• Villaseñor, Jaime I. [Max Planck Institute for Astronomy, Heidelberg, Germany]
• Vink, Jorick S. [Armagh Observatory and Planetarium, Northern Ireland, UK]
• Wang, Chen [School of Astronomy and Space Science, Nanjing University, People’s Republic of China; Key Laboratory of Modern Astronomy and Astrophysics, Nanjing University, People’s Republic of China]
• Xu, Xiao-Tian [Tsung-Dao Lee Institute, Shanghai Jiao-Tong University, People’s Republic of China]

Massive stars at low metallicity (Z) play a central role in shaping the high-redshift Universe, yet their multiplicity remains poorly constrained. The Binarity at Low Metallicity (BLOeM) campaign is a two-year survey of 929 stars in the Small Magellanic Cloud with the Fibre Large Array Multi Element Spectrograph (FLAMES) intrument at ESO’s Very Large Telescope, providing the first large-scale spectroscopic monitoring of massive stars at low Z (1/5 solar). Analysis of the initial nine epochs reveals high intrinsic binary fractions (> 70%) on the main sequence and a steep decline in evolved objects. Analysis of the full dataset will yield orbital solutions, identify black-hole companions and allow a derivation of the initial mass function for single and binary stars at low Z.