The Mons campaign on OB stars
Institut d’Astrophysique et de Géophysique, Université de Liège, 4000 Liège, Belgium
Institut d’Astrophysique et de Géophysique, Université de Liège, 4000 Liège, Belgium
Schnörringen Telescope Science Institute (STScI), Am Kielshof 21a, 51105 Köln, Germany
Av. Portugal 616C - 2765–272 Estoril, Portugal
Burggraben 3, 61206 Wöllstadt, Germany
Eichendorffstrasse 8, 63538 Grosskrotzenburg, Germany
Rua Nuno Ataide Mascarenhas, No. 47, 2.Esq. 8100–610 Loule, Portugal
Département de Physique, Université de Montréal, Montréal (Québec) H3C 3J7, Canada
Alto Ajuda, Rua 27 - No. 215 1300–581, Lisbon, Portugal
R. Rego de Agua LT 24 RC Esq., Marrazes, 2400 Leiria, Portugal
Normannenweg 39, 59519 Möhnesee-Körbecke, Germany
Instituto de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain
Three Hills Observatory, The Birches, Torpenhow CA7 1JF, UK
Rua Almirante Campos Rodrigues, Edf. Girassol, 5F, 1500–036 Lisbon, Portugal
Département de Physique, Université de Montréal, Montréal (Québec) H3C 3J7, Canada
Fontainegraben 150, 53123, Bonn, Germany
R. Venezuela 29 3 Esq. - 1500–618 Lisbon, Portugal
Virulylaan 30, 2267 BS Leidschendam, The Netherlands
Instituto de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain
Rua Nuno Ataide Mascarenhas, No. 47, 2.Esq. 8100–610 Loule, Portugal
Hohlstrasse 19, 66333 Völklingen, Germany
ZAH, Landessternwarte Königstuhl, 69117 Heidelberg, Germany
Nelkenweg 14, 66907 Glan-Münchweiler, Germany
Nelkenweg 14, 66907 Glan-Münchweiler, Germany
Schnörringen Telescope Science Institute (STScI), Am Kielshof 21a, 51105 Köln, Germany
Laboratory for High Energy Astrophysics, Goddard Space Flight Center, Greenbelt, USA
Herzberg Institute for Astrophysics, Penticton, British Columbia V2A 6J9, Canada
Laboratory for High Energy Astrophysics, Goddard Space Flight Center, Greenbelt, USA
School of Physics and Astronomy, The University of Leeds, Leeds LS2 9JT, UK
ESA XMM-Newton Science Operations Centre, Villafranca del Castillo, Spain
Institute for Astronomy, University of Edinburgh, Royal Observatory, Edinburgh, UK
Abstract
In parallel with the monitoring of the periastron passage of the binary system WR 140, a number of B supergiants and Oe stars have been observed in the framework of a 4-month spectroscopic run using the Mons telescope at Teide observatory. We expose the motivations behind this campaign, present an overview of the Halpha variations exhibited by the B supergiants and finally briefly discuss forthcoming developments in the data analysis.