Free Access
Volume 559, November 2013
Article Number L8
Number of page(s) 6
Section Letters
Published online 14 November 2013

Online material

thumbnail Fig. 4

Upper panels: APEX ground-vibrational 29SiO (red) and 30SiO (blue) J = 7−6 spectra toward o Ceti and R Leo. Lower panels: Herschel/HIFI ground-vibrational 29SiO (red) and 30SiO (blue) J = 26−25 spectra at around 1.1 THz toward χ Cyg, R Cas, and R Dor. The dashed lines indicate the VLSR of the sources.

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Table 2

APEX and Herschel SiO integrated intensity measurements.

Table 3

Overview of envelope terminal velocities, mass-loss rates, and 29Si/30Si ratios toward the selected evolved stars.

© ESO, 2013

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