J/A+AS/120/301 Comae of six comets (Sanzovo+ 1996)
Dust colors, dust release rates, and dust-to-gas ratios in the comae of
six comets.
Sanzovo G.C., Singh P.D., Huebner W.F.
<Astron. Astrophys. Suppl. Ser. 120, 301 (1996)>
=1996A&AS..120..301S 1996A&AS..120..301S (SIMBAD/NED BibCode)
ADC_Keywords: Comets
Keywords: comets - Bowell (1982 I) - Bradfield (1979 X) -
Brorsen-Metcalf (1989 X) - Giacobini-Zinner (1985 XIII) -
Levy (1990 XX) - Stephan-Oterma (1980 X)
Abstract:
In an attempt to find correlations between properties of comets, we
determine the dust colors, dust release rates, and dust-to-gas mass
ratios in the comae of Comets Bowell (1980b=1982I), Bradfield
(1979l=1979X), Brorsen-Metcalf (1989o=1989X), Giacobini-Zinner
(1984e=1985XIII), Levy (1990c=1990XX), and Stephan-Oterma
(1980g=1980X) using a uniform and systematic analysis of the continuum
fluxes measured at optical wavelengths. We assume that the continuum
fluxes observed in these comets are from light scattered by
micrometer-sized dust particles. The color of the dust is blue,
relative to the Sun, in Comets Bradfield (1979 X) and Brorsen-Metcalf
(1989 X); both comets have a low dust-to-gas mass ratio (χ<10%).
Comets Giacobini-Zinner (1985 XIII) and Stephan-Oterma (1980 X) have
an intermediate dust-to-gas mass ratio (10%<χ<40%), whereas Comets
Levy (1990 XX) and Bowell (1982 I) have a high dust-to-gas mass ratio
(χ>40%). The continuum flux from dust particles in comets with
intermediate to high dust-to-gas mass ratios is in general red,
relative to the Sun. However, the color changes to blue in these
comets when the dust-to-gas mass ratios are low relative to their peak
values.
**************************************************************************
* *
* Sorry, but the author(s) did not provide their tables as announced *
* in the paper *
* *
**************************************************************************
(End) Patricia Bauer [CDS] 24-May-1996