Carbon-Rich Mira Variables: Kinematics and Absolute Magnitudes

Details Carbon-Rich Mira Variables: Kinematics and Absolute Magnitudes Carbon-Rich Mira Variables: Kinematics and Absolute Magnitudes

2006-03-18

arxiv.org/abs/astro-ph/0603506v1

Mon.Not.Roy.Astron.Soc.369:791-797,2006

Astronomy and Astrophysics

Astrophysics

8 pages, 2 figures, accepted for publication in MNRAS

Scientific paper

10.1111/j.1365-2966.2006.10324.x

The kinematics of galactic C-Miras are discussed on the basis of the bolometric magnitudes and radial velocities of Papers I and II of this series. Differential galactic rotation is used to derive a zero-point for the bolometric period-luminosity relation which is in satisfactory agreement with that inferred from the LMC C-Miras. We find for the galactic Miras, Mbol = -2.54logP + 2.06 (+/- 0.24), where the slope is taken from the LMC. The mean velocity dispersion, together with the data of Nordstroem et al. and the Padova models, leads to a mean age for our sample of C-Miras of 1.8 +/- 0.4 Gyr and a mean initial mass of 1.8 +/-0.2 solar masses. Evidence for a variation of velocity dispersion with period is found, indicating a dependence of period on age and initial mass, the longer period stars being younger. We discuss the relation between the O- and C-Miras and also their relative numbers in different systems.

Affiliated with

Also associated with

No associations

Rating

Carbon-Rich Mira Variables: Kinematics and Absolute Magnitudes does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Carbon-Rich Mira Variables: Kinematics and Absolute Magnitudes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Carbon-Rich Mira Variables: Kinematics and Absolute Magnitudes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-489658