Hostname: page-component-78c5997874-lj6df Total loading time: 0 Render date: 2024-11-08T04:59:12.260Z Has data issue: false hasContentIssue false
  • English
  • Français

Massive stars and their large-separation low-mass companions in Sco OB1

Published online by Cambridge University Press:  29 August 2024

T. Pauwels Open the ORCID record for T. Pauwels [Opens in a new window] ,
M. Reggiani ,
A. Rainot Open the ORCID record for A. Rainot [Opens in a new window]  and
H. Sana Open the ORCID record for H. Sana [Opens in a new window]
T. Pauwels*
Affiliation:
Institute of Astronomy, KU Leuven, Celestijnenlaan 200D, 3001, Leuven, Belgium
M. Reggiani
Affiliation:
Institute of Astronomy, KU Leuven, Celestijnenlaan 200D, 3001, Leuven, Belgium
A. Rainot
Affiliation:
Institute of Astronomy, KU Leuven, Celestijnenlaan 200D, 3001, Leuven, Belgium
H. Sana
Affiliation:
Institute of Astronomy, KU Leuven, Celestijnenlaan 200D, 3001, Leuven, Belgium
*
email: [email protected]
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Exploring the low-mass end of the companion mass function around massive stars is of crucial importance to constrain massive star formation theories. We present a high-contrast imaging study of 20 O- and early B-type stars in the Scorpius OB1 association. From the analysis of VLT/SPHERE data, we identify a total of 789 sources. The data probe the brown dwarf regime around massive stars, resulting in the discovery of large-separation multiple systems with mass-ratios as low as 0.001 (comparable to Jupiter-Sun mass-ratio).

Keywords

stars: early-typestars: low-massbrown dwarfsbinaries: generalstars: formation
Type
Poster Paper
Information
Proceedings of the International Astronomical Union , Volume 18 , Symposium S361: Massive Stars Near and Far , May 2022 , pp. 326 - 328
Check for updates
Copyright
© The Author(s), 2024. Published by Cambridge University Press on behalf of International Astronomical Union

References

Cutri, R. M., et al. 2003, VizieR Online Data Catalog, II/246Google Scholar
Czekaj, M. A., Robin, A. C., Figueras, F., Luri, X., & Haywood, M. 2014, A&A, 564, A102 Google Scholar
Gomez Gonzalez, C. A., et al. 2017, AJ, 154, 7 CrossRefGoogle Scholar
Mel’nik, A. M., & Dambis, A. K. 2017, MNRAS, 472, 3887 Google Scholar
Rainot, A., Reggiani, M., Sana, H., Bodensteiner, J., & Absil, O. 2022, A&A, 658, A198 Google Scholar
Rainot, A., et al. 2020, A&A, 640, A15 Google Scholar
Reggiani, M., et al. 2022, A&A, 660, A122 CrossRefGoogle Scholar
Sana, H., et al. 2012, Science, 337, 444 CrossRefGoogle Scholar
Sana, H.. 2013, A&A, 550, A107 CrossRefGoogle Scholar
Sana, H.. 2014, ApJS, 215, 15 CrossRefGoogle Scholar
Sota, A., Maz Apellániz, J., Morrell, N. I., Barbá, R. H., Walborn, N. R., Gamen, R. C., Arias, J. I., & Alfaro, E. J. 2014, ApJS, 211, 10 CrossRefGoogle Scholar
Sung, H., Sana, H., & Bessell, M. S. 2013, AJ, 145, 37 Google Scholar