Period changes and evolution in RV Tauri stars
Journal Article
·
· Astrophysical Journal; (United States)
- Toronto, University, Mississauga (Canada) Toronto, University (Canada)
The period changes in two bright RV Tauri stars-U Mon and R Sct - have been investigated using visual data beginning in 1883 and 1843, respectively. The period of U Mon decreased abruptly from 46.117 to 45.814 days in 1957. Its mean magnitude varied with a period of 2475 days. The period of R Sct decreased abruptly from 70.95 to 70.0 days in 1941, though the period behavior in this star was more erratic and therefore more uncertain than in U Mon. The observed changes, averaged over the interval of observation, are in good agreement with predicted values but are abrupt rather than uniform. The cause of the abrupt changes, the cyclic oscillations in the periods of these and other RV Tauri stars, and the long-term variations in mean magnitude, are not known. 38 refs.
- OSTI ID:
- 5194070
- Journal Information:
- Astrophysical Journal; (United States), Journal Name: Astrophysical Journal; (United States) Vol. 375; ISSN ASJOA; ISSN 0004-637X
- Country of Publication:
- United States
- Language:
- English
Similar Records
Photoelectric observations of the bright RV Tauri stars R Scuti and U Monocerotis
MACHO observations of Type II cepheids and RV Tauri Stars in the LMC
The envelopes of RV Tauri variables
Journal Article
·
Wed Feb 28 23:00:00 EST 1973
· Astron. Astrophys., v. 23, no. 3, pp. 463-466
·
OSTI ID:4356861
MACHO observations of Type II cepheids and RV Tauri Stars in the LMC
Conference
·
Mon Jul 01 00:00:00 EDT 1996
·
OSTI ID:644574
The envelopes of RV Tauri variables
Thesis/Dissertation
·
Sun Dec 31 23:00:00 EST 1989
·
OSTI ID:5550639