SIMBAD references

2006MNRAS.369..783M - Mon. Not. R. Astron. Soc., 369, 783-790 (2006/June-3)

Carbon-rich Mira variables: radial velocities and distances.


Abstract (from CDS):

Optical radial velocities have been measured for 38 C-type Mira variables (C-Miras). These data together with others in the literature are used to study the differences between optical and CO millimetre (mm) observations for C-Miras and the necessary corrections to the optical velocities are derived in order to obtain the true radial velocities of the variables. The difference between absorption and emission-line velocities is also examined. A particularly large difference (+30km/s) is found in the case of the Hα line. A catalogue is given of 177 C-Miras with estimated distances and radial velocities. The distances are based on bolometric magnitudes derived in Paper I using South African Astronomical Observatory (SAAO) observations or (for 60 of the stars) using non-SAAO photometry. In the latter case, the necessary transformations to the SAAO system are derived. These data will be used in Paper III to study the kinematics of the C-Miras.

Abstract Copyright: 2006 The Authors. Journal compilation © 2006 RAS

Journal keyword(s): stars: AGB and post-AGB - stars: carbon - stars: distances - stars: variables: other - Galaxy: kinematics and dynamics

VizieR on-line data: <Available at CDS (J/MNRAS/369/783): table2.dat table3.dat table4.dat>

Simbad objects: 197

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