K Giant Magnitude Calibration from Parallaxes

Details K Giant Magnitude Calibration from Parallaxes K Giant Magnitude Calibration from Parallaxes

Feb 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...254..105g&link_type=abstract

Astronomy and Astrophysics 254, 105

Astronomy and Astrophysics

Astrophysics

5

Late-Type, Distances: Distance Scale

Scientific paper

We test the Janes (1975, 1979) calibration of K giant magnitudes from DDO colours against a sample of 40 local parallax stars. These stars are taken from the sample analyzed by Egret, Keenan, and Heck (1982), but are further selected for Janes magnitude (0m.80 &le MJV ≤ 2m.2), colour (1.0 ≤ B-V ≤ 1.5), and metallicity (-0.5 ≤ [Fe/H] ≤ 0.0). We find these stars to be on average very slightly brighter (δMJV = -0m.07±0m.10) than the Janes values. Our result is in agreement with a recent redetermination of the Janes magnitude offset by Flynn and Mermilliod (1991) (δMJV = 0m.07 ± 0m.09) on the basis of open-cluster stars. However, we disagree with the calibration of Egret, Keenan, and Heck by a full magnitude. Half of this difference is due to changes in the parallax catalog values and to slightly different selection criteria. We cannot account for the remaining half.

Affiliated with

Also associated with

No associations

Rating

K Giant Magnitude Calibration from Parallaxes 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 K Giant Magnitude Calibration from Parallaxes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and K Giant Magnitude Calibration from Parallaxes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1044464