First Evidence of Dusty Disks around Herbig Be Stars | Zendy

A. Fuente | Zendy; A. Rodrguez-Franco | Zendy; L. Testi | Zendy; A. Natta | Zendy; R. Bachiller | Zendy; R. Neri | Zendy

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First Evidence of Dusty Disks around Herbig Be Stars

Author(s) -

A. Fuente,

A. Rodrguez-Franco,

L. Testi,

A. Natta,

R. Bachiller,

R. Neri

Publication year - 2003

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/380296

Subject(s) - stars , t tauri star , physics , plateau de bure interferometer , herbig ae/be star , astrophysics , circumstellar disk , astronomy , k type main sequence star , star formation

We have carried out a high-sensitivity search for circumstellar disks aroundHerbig Be stars in the continuum at 1.4mm and 2.7mm using the IRAMinterferometer at the Plateau de Bure (PdBI) . In this letter, we report dataon three well studied B0 stars, MWC 1080, MWC 137 and R Mon. The two latterhave also been observed in the continuum at 0.7 cm and 1.3 cm using the NRAOVery Large Array (VLA) . We report the detection of circumstellar disks aroundMWC 1080 and R Mon with masses of Md ~ 0.003 and 0.01 Msun, respectively, whilefor MWC 137 we estimate a disk mass upper limit of 0.007 Msun. Our results showthat the ratio Md/M* is at least an order of magnitude lower in Herbig Be starsthan in Herbig Ae and T Tauri stars.Comment: 5 pages (including figures

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