SIMBAD references

2007A&A...473..143D - Astronomy and Astrophysics, volume 473, 143-148 (2007/10-1)

C stars as kinematic probes of the Milky Way disk from 9 to 15 kpc.

DEMERS S. and BATTINELLI P.

Abstract (from CDS):

The availability, from 2MASS, of a large homogeneous sample of Galactic C stars and the recognition that their absolute magnitude can be accurately determined offer the possibility to use them as kinematical probes to investigate motions in the thin or thick disks. Determine the radial velocities for 70 C stars, a few degrees from the Galactic plane and distributed in longitudes from 60° to 220°. Spectra, with a resolution of 4300, were obtained with the DAO 1.8m telescope during 6 beautiful nights in October 2006. The rotation velocities of C stars with 60°<l<150° suggest a flat rotation curve to 15kpc. A number of stars have velocities that do not fit the thin disk rotation. Some of them, toward l=200° are most probably members of the Canis Major overdensity. Effort should be made to extend the rotation curve to more that 20kpc.

Abstract Copyright: ∼

Journal keyword(s): stars: carbon - stars: kinematics - Galaxy: disk - Galaxy: kinematics and dynamics

VizieR on-line data: <Available at CDS (J/A+A/473/143): table1.dat table4.dat>

Nomenclature: Table 1: [DB2007] NNN (Nos 1-103).

CDS comments: Paragr.3: 2259+1749 is a misprint for [TI98] 2259+1249. Tables 1 and 4 contain 103 stars; only 76 are confirmed carbon stars, but it is not indicated in the table; thus all objects are finally put as star in Simbad, without spectral type.

Simbad objects: 109

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