Bruno Barsella
University of Pisa
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Featured researches published by Bruno Barsella.
The 50th international meeting of physical chemistry: Molecules and grains in space | 2008
Santi Aiello; Cesare Cecchi-Pestellini; Bruno Barsella
The intensity of far‐ultraviolet radiation inside interstellar clouds is a crucial factor in determining their physical and chemical evolution. The intensity of UV radiation depends on the structure of the clouds, on the optical properties of interstellar grains and on the presence of embedded sources, if any. Scattering on dust grains can greatly reduce shielding effects.In the present work we compute the radiation intensity inside isolated dark clouds, making different assumptions on the structure of the clouds and on the extinction and scattering properties of dust grains. In particular, we consider the case in which extinction laws are different in different parts of the cloud.
Planetary and Space Science | 1995
Cesare Cecchi-Pestellini; Costanza Cervetto; Santi Aiello; Bruno Barsella
Abstract The penetration of UV radiation inside dark clouds is discussed; and detailed calculations of Rv-dependent photorates are described. Using an accurate method for solving radiative transfer in the presence of coherent anisotropic. non-conservative scattering by dust grains, the role of the parameter Rv as the main regulatory agent of the penetration of radiation inside clouds is evidenced. Local variations in optical properties of dust and their possible link with the evolution of the cloud are also discussed.
Nature | 1987
J. Mayo Greenberg; Federico Ferrini; Bruno Barsella; Santi Aiello
Monthly Notices of the Royal Astronomical Society | 2001
A. Megier; Santi Aiello; Bruno Barsella; S. Casu; J. Krełowski
Monthly Notices of the Royal Astronomical Society | 1995
C. Cecchi-Pestellini; Santi Aiello; Bruno Barsella
Astrophysical Journal Supplement Series | 1995
Cesare Cecchi-Pestellini; Santi Aiello; Bruno Barsella
Archive | 2003
Rosalba Saija; Maria Antonia Iatì; Arianna Giusto; Paolo Denti; Ferdinando Borghese; Cesare Cecchi-Pestellini; Santi Aiello; Bruno Barsella
Archive | 1998
Santi Aiello; Bruno Barsella; Grzegorz Chlewicki; J. Mayo Greenberg; P. Patriarchi; M. Perinotto
Proceedings of The International Astronomical Union | 1989
Andrea Ferrara; Bruno Barsella; Federico Ferrini; J. Mayo Greenberg; Santi Aiello
Proceedings of The International Astronomical Union | 1989
Santi Aiello; C. Cecchi-Pestellini; Francesco Mencaraglia; Bruno Barsella; Federico Ferrini