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J/A+A/376/997 Galactic mass-losing AGB stars (Le Bertre+, 2001)
The following files can be converted to FITS (extension .fit .fgz or .fiZ)
table4.dat
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Query from: http://vizier.cds.unistra.fr/cgi-bin/VizieR?-source=J/A+A/376/997
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Beginning of ReadMe :J/A+A/376/997 Galactic mass-losing AGB stars (Le Bertre+, 2001)
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Galactic mass-losing AGB stars probed with the IRTS. I.
Le Bertre T., Matsuura M., Winters J.M., Murakami H., Yamamura I.,
Freund M., Tanaka M.
<Astron. Astrophys. 376, 997 (2001)>
=2001A&A...376..997L
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ADC_Keywords: Stars, carbon ; Mass loss ; Infrared sources ; Stars, distances
Keywords: stars: carbon - stars: mass-loss - stars: AGB and post-AGB -
ISM: evolution - galaxy: solar neighbourhood - infrared: stars
Abstract:
AGB mass-losing sources are easy to identify and to characterize in
the near-infrared range (1-5mum). We make use of the near-infrared
data acquired by the Japanese space experiment IRTS to study a sample
of sources detected in the 2 celestial strips surveyed by the IRTS.
Mass-loss rates and distances are estimated for 40 carbon-rich sources
and 86 oxygen-rich sources of which 8 are probably of S-type. Although
the sample is small, one sees a dependence of the relative
contribution of the two kinds of sources to the replenishment of the
interstellar medium (ISM) on the galactocentric distance. E.g. from 6
to 8kpc, oxygen-rich sources in our sample contribute 10-12 times as
much as carbon rich sources, whereas from 10 to 12kpc, the latters
contribute 3-4 times as much as the formers. Therefore, one would
expect a gradient in the composition of the ISM between 6 and 12kpc
from the Galactic Centre, especially in its dust component. Most of
the replenishment (>50%) by AGB stars is due to sources with mass-loss
rate larger than 10^-6^M_sun_/yr.