Period Changes of RR Lyrae Stars II, TW Her, WZ Her, AV Peg and TU UMa

Details Period Changes of RR Lyrae Stars II, TW Her, WZ Her, AV Peg and TU UMa Period Changes of RR Lyrae Stars II, TW Her, WZ Her, AV Peg and TU UMa

Jan 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986cokon..89...57s&link_type=abstract

Communications of the Konkoly Observatory, No. 89 (Vol. X, 3), p. 57-110 (1986)

Physics

2

Scientific paper

Photographic and photoelectric observations obtained at Konkoly Observatory during the past 35 years are presented. Using all available observations the O-C diagrams of TW Her, VZ Her, AV Peg and TU UMa are constructed. The period of TW Her is constant whereas that of VZ Her, AV Peg and TU UMa is changing. The periods of VZ Her and AV Peg show an increase at a rate of +1.144x10-10 day/cycle = 8.20 ms/year and +1.846x10-10 day/cycle = 14.92 ms/year, respectively whereas the period of TU UMa is decreasing at a rate of -0.210x10-10 day/cycle = -4.02 ms/year. Superimposed on the parabolic O-C diagrams of AV Peg and TU UMa are cyclic variations which may result from the duplicity of these stars.

Affiliated with

Also associated with

No associations

Rating

Period Changes of RR Lyrae Stars II, TW Her, WZ Her, AV Peg and TU UMa 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 Period Changes of RR Lyrae Stars II, TW Her, WZ Her, AV Peg and TU UMa, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Period Changes of RR Lyrae Stars II, TW Her, WZ Her, AV Peg and TU UMa will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1845511