WZ Cas - variability on multiple time-scales

Astronomy and Astrophysics – Astrophysics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

2

Stars: Late-Type, Stars: Agb And Post-Agb, Stars: Variables: General

Scientific paper

We present results on our long-term velocity monitoring of the C-rich semi-regular variable WZ Cas with a Coravel instrument. Our findings are compared with light changes of the star. We suggest that the two main periods, 366 and 186 d, are due to radial pulsation. Furthermore, we find an interesting variation of the width and depth of the cross-correlation profile over a time-scale of at least 1000 d. Several possible explanations for this behaviour are discussed by comparison of time-scales and expected variability amplitudes. The influence of movements of large convective cells on the line profiles seems to be the most likely explanation of some of the observed phenomena.

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

WZ Cas - variability on multiple time-scales 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 WZ Cas - variability on multiple time-scales, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and WZ Cas - variability on multiple time-scales will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1300206

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