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: http://www.arcetri.astro.it/~lt/preprints/herbig/abstract.html
Дата изменения: Tue Sep 11 16:56:43 2007 Дата индексирования: Sat Dec 22 07:32:37 2007 Кодировка: Поисковые слова: massive stars |
by
L. Testi (1), F. Palla (2), T. Prusti (3), A. Natta (2), S. Maltagliati (1)
(1) Dipartimento di Astronomia e Scienza dello Spazio, Universitá di Firenze, Largo E. Fermi, 5, I-50125 Firenze, Italy
(2) Osservatorio Astrofisico di Arcetri, Largo Enrico Fermi 5, I-50125 Firenze, Italy
(3) Astrophysics Division, Space Science Department, ESTEC, Postbus 299, NL-2200 AG Noordwijk, The Netherlands
The richness of the detected star clusters is investigated. We find a clear dependence of the richness of the cluster on the spectral type of the Herbig Ae/Be star, confirming that the mode of formation of intermediate-mass stars represents the transition between the high-mass and the low-mass modes. In particular, we find that the cluster nature of star formation appears at a significant (i.e. detectable) level for stars of B7 spectral type or earlier.
lt@arcetri.astro.it