The absolute magnitude of the early type MK standards from HIPPARCOS parallaxes

Astronomy and Astrophysics – Astrophysics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

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

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

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.

Rate now

     

Profile ID: LFWR-SCP-O-1221207

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.