Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998a%26a...330..619j&link_type=abstract
Astronomy and Astrophysics, v.330, p.619-625 (1998)
Astronomy and Astrophysics
Astrophysics
45
Stars: Early Type Mk Standards, Absolute Magnitude
Scientific paper
We analyse the standards of the MK system with the help of Hipparcos parallaxes, using only stars for which the error of the absolute magnitude is <= 0.3 mag. We find that the main sequence is a wide band and that, although in general giants and dwarfs have different absolute magnitudes, the separation between luminosity classes V and III is not clear. Furthermore, there are a number of exceptions to the strict relation between luminosity class and absolute magnitude. We analyse similarly the system of standards defined by Garrison & Gray (1994) separating low and high rotational velocity standards. We find similar effects as in the original MK system. We propose a revision of the MK standards, to eliminate the most deviant cases. Based on data from the ESA Hipparcos astrometry satellite
Gomez Ana E.
Jaschek Carlos
No associations
LandOfFree
The absolute magnitude of the early type MK standards from HIPPARCOS 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 The absolute magnitude of the early type MK standards from HIPPARCOS parallaxes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The absolute magnitude of the early type MK standards from HIPPARCOS parallaxes will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1221207