Astronomy and Astrophysics – Astrophysics
Scientific paper
2003-10-02
Astrophys.J.598:L39-L42,2003
Astronomy and Astrophysics
Astrophysics
5 pages (including figures)
Scientific paper
10.1086/380296
We have carried out a high-sensitivity search for circumstellar disks around Herbig Be stars in the continuum at 1.4mm and 2.7mm using the IRAM interferometer at the Plateau de Bure (PdBI) . In this letter, we report data on three well studied B0 stars, MWC 1080, MWC 137 and R Mon. The two latter have also been observed in the continuum at 0.7 cm and 1.3 cm using the NRAO Very Large Array (VLA) . We report the detection of circumstellar disks around MWC 1080 and R Mon with masses of Md ~ 0.003 and 0.01 Msun, respectively, while for MWC 137 we estimate a disk mass upper limit of 0.007 Msun. Our results show that the ratio Md/M* is at least an order of magnitude lower in Herbig Be stars than in Herbig Ae and T Tauri stars.
Bachiller Rafael
Fuente Asuncion
Natta Antonella
Neri Roberto.
Rodriguez-Franco Arturo
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